Elementary School Science Quiz: Construct Arguments About Gravity
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Construct Arguments About GravityQuestion 1 of 20

A student wrote this argument:

Claim: Gravity pulls objects toward Earth.
Evidence: When I dropped my marker, it fell to the floor.

Based on this argument, what is missing to make it a complete argument?

It is missing reasoning that explains how the evidence supports the claim.
It is missing a new claim that says gravity pushes objects away from Earth.
It is missing a picture of the marker with a label showing its color.
It is missing an opinion sentence that says, "I like science."
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Elementary School Science Quiz

Elementary School Science Quiz: Construct Arguments About Gravity

Practice Construct Arguments About Gravity in Elementary School Science with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Construct Arguments About Gravity, giving you a quick way to practice the rules, question types, and explanations that matter most for Elementary School Science.

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

A student wrote this argument:

Claim: Gravity pulls objects toward Earth.
Evidence: When I dropped my marker, it fell to the floor.

Based on this argument, what is missing to make it a complete argument?

  1. It is missing reasoning that explains how the evidence supports the claim. (correct answer)
  2. It is missing a new claim that says gravity pushes objects away from Earth.
  3. It is missing a picture of the marker with a label showing its color.
  4. It is missing an opinion sentence that says, "I like science."
Explanation: This question tests a 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically evaluating argument quality and identifying what's missing. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects (e.g., 'Gravity pulls all objects toward Earth'), (2) Evidence - observations or data that relate to claim (e.g., 'When we dropped 10 different objects, all fell toward the ground'), and (3) Reasoning - explicit explanation of how evidence supports claim (e.g., 'Because all objects fell toward ground regardless of weight or size, this shows that gravity pulls on all objects toward Earth'). The reasoning component is often missing in student arguments - they may provide claim and evidence but forget to explain the connection. For this question, students need to evaluate argument and identify that reasoning is missing. Choice A is correct because it correctly identifies what component is missing from argument. This shows the student understands complete arguments need claim, evidence, and reasoning. Choice B represents a common error where students have partial components but missing complete versions of claim, evidence, or reasoning. This typically happens because 5th graders may not yet understand that reasoning (explanation of connection) is separate necessary component - they may think evidence alone is sufficient. To help students: Practice constructing arguments step-by-step: First identify what claim we want to make, then gather relevant evidence, finally explain how evidence supports claim. Watch for: Students who think evidence alone is sufficient argument.

Question 2

Using the data, which argument best explains that gravity affects many different kinds of objects near Earth?

Data: Time it took to hit the ground when dropped from the same height:

  • Small rock: hit the ground
  • Leaf: hit the ground
  • Pencil: hit the ground
  • Empty plastic bottle: hit the ground

(All objects landed on the ground, even if some took longer.)

  1. Claim: Gravity affects all objects near Earth. Evidence: The rock, leaf, pencil, and plastic bottle all landed on the ground when dropped. Reasoning: Because every object moved toward the ground when released, this shows gravity pulls on many different objects. (correct answer)
  2. Claim: Gravity affects only smooth objects. Evidence: The pencil felt smooth. Reasoning: Since smooth things slide, gravity must pull only smooth objects.
  3. Claim: Gravity makes objects fall because they are dropped. Evidence: The objects were dropped. Reasoning: They fell because they fell, so gravity is the name for falling.
  4. Claim: Gravity affects all objects near Earth. Evidence: The leaf is green and the rock is gray. Reasoning: Because they have different colors, gravity must be strong.
Explanation: This question tests a 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically identifying strongest argument among options that shows gravity affects diverse objects. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects (e.g., 'Gravity pulls all objects toward Earth'), (2) Evidence - observations or data that relate to claim (e.g., 'When we dropped 10 different objects, all fell toward the ground'), and (3) Reasoning - explicit explanation of how evidence supports claim (e.g., 'Because all objects fell toward ground regardless of weight or size, this shows that gravity pulls on all objects toward Earth'). The reasoning component is often missing in student arguments - they may provide claim and evidence but forget to explain the connection. For this question, students need to identify which of several arguments has clear claim, relevant evidence, and explicit reasoning. Choice A is correct because it includes all three components - clear claim about gravity's effects, relevant evidence from observations of different objects, and explicit reasoning connecting them. This shows the student understands evidence must be relevant to claim. Choice C represents a common error where students use circular reasoning that restates claim rather than explaining connection. This typically happens because 5th graders may struggle with causal/logical language needed for reasoning ('because,' 'this shows that,' 'therefore'). To help students: Use sentence frames: 'Claim: Gravity [statement about effects]. Evidence: [observations we made]. Reasoning: This evidence supports the claim because [explanation of connection].' Watch for: Students who provide claim and evidence but omit reasoning.

Question 3

Based on these observations, which argument best explains how gravity affects objects near Earth? During recess, a student let go of a jump rope, a basketball, and a jacket. Each item fell to the ground. A nearby puddle of water flowed downhill toward a drain.

  1. Claim: Gravity pushes objects upward. Evidence: The puddle moved toward the drain. Reasoning: Since water can move, gravity must push it up into the drain.
  2. Claim: Gravity pulls objects toward Earth. Evidence: The jump rope, basketball, and jacket fell when they were let go, and the puddle flowed downhill. Reasoning: Because unsupported objects and water both move downward, this shows gravity pulls things toward Earth's surface. (correct answer)
  3. Claim: Gravity is caused by wind. Evidence: The jacket moved while falling. Reasoning: Since wind can move jackets, wind must be the reason objects fall.
  4. Claim: Gravity pulls objects toward Earth. Evidence: The basketball is round and bounces. Reasoning: Round things bounce, so gravity must be stronger on them.
Explanation: This question tests 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically identifying strongest argument among options with multiple types of evidence. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects (e.g., 'Gravity pulls all objects toward Earth'), (2) Evidence - observations or data that relate to claim (e.g., 'When we dropped 10 different objects, all fell toward the ground'), and (3) Reasoning - explicit explanation of how evidence supports claim (e.g., 'Because all objects fell toward ground regardless of weight or size, this shows that gravity pulls on all objects toward Earth'). For this question, students need to identify which argument has clear claim, relevant evidence from multiple observations, and explicit reasoning. Choice B is correct because it includes all three components - clear claim about gravity's effects, relevant evidence from multiple observations (different objects falling AND water flowing downhill), and explicit reasoning connecting them using 'Because...this shows' language. This shows the student understands stronger arguments have clear logical structure and multiple pieces of evidence strengthen argument. Choice C represents a common error where students provide irrelevant evidence that doesn't support the claim and use faulty reasoning about causation. This typically happens because 5th graders may confuse correlation with causation or focus on irrelevant details rather than what observations reveal about gravity's effects. To help students: Model reasoning with think-aloud: 'We observed that all objects fell toward ground AND water flowed downhill. What does this tell us about gravity? It tells us that gravity must pull on all objects and liquids, because if gravity didn't pull on them, they wouldn't move downward. So our reasoning is: Because both solids and liquids move downward, this shows gravity pulls on all matter toward Earth.' Watch for: Students who include irrelevant evidence (like object properties) or confuse other forces (like wind) with gravity's effects.

Question 4

Using the data from this class test, construct the strongest argument (claim, evidence, reasoning) about how gravity affects objects near Earth: A student dropped a pencil, a coin, a crumpled paper ball, and a small eraser from the same height. Each object started falling as soon as it was released and landed on the floor.​

  1. Claim: Gravity pulls objects toward Earth. Evidence: The pencil, coin, paper ball, and eraser all fell to the floor when dropped. Reasoning: Since every object moved downward as soon as it was released, this shows Earth's gravity pulls objects toward the ground. (correct answer)
  2. Claim: Gravity only pulls on heavy objects. Evidence: The coin fell quickly. Reasoning: This means light objects are not affected by gravity near Earth.
  3. Claim: Gravity makes objects fall. Evidence: The pencil and eraser fell to the floor. Reasoning: The pencil is yellow, so it falls because yellow objects are heavier.
  4. Claim: Gravity pulls objects toward Earth. Evidence: The pencil, coin, paper ball, and eraser fell to the floor. Reasoning: Gravity is gravity, so that is why they fell.
Explanation: This question tests 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically identifying strongest argument among options. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects (e.g., 'Gravity pulls all objects toward Earth'), (2) Evidence - observations or data that relate to claim (e.g., 'When we dropped 10 different objects, all fell toward the ground'), and (3) Reasoning - explicit explanation of how evidence supports claim (e.g., 'Because all objects fell toward ground regardless of weight or size, this shows that gravity pulls on all objects toward Earth'). The reasoning component is often missing in student arguments - they may provide claim and evidence but forget to explain the connection. For this question, students need to identify which of several arguments has clear claim, relevant evidence, and explicit reasoning. Choice A is correct because it includes all three components - clear claim about gravity's effects, relevant evidence from observations, and explicit reasoning connecting them using 'this shows' language. This shows the student understands complete arguments need claim, evidence, and reasoning with logical connections. Choice D represents a common error where students provide claim and evidence but use circular reasoning that restates claim rather than explaining connection ('Gravity is gravity'). This typically happens because 5th graders may not yet understand that reasoning (explanation of connection) is separate necessary component - they may think evidence alone is sufficient. To help students: Explicitly teach and model three-component structure using graphic organizer with separate boxes for Claim, Evidence, and Reasoning. Practice constructing arguments step-by-step: First identify what claim we want to make, then gather relevant evidence, finally explain how evidence supports claim. Watch for: Students who provide claim and evidence but omit reasoning or use circular logic that doesn't actually explain the connection between evidence and claim.

Question 5

Based on these observations, which revision would best strengthen the argument by adding better evidence? A student wrote: Claim: Gravity pulls objects toward Earth. Evidence: I dropped a tennis ball and it fell down.​

  1. Add: "I think gravity is the strongest force because it feels strong."
  2. Add: "The tennis ball was bright green and had fuzzy fabric."
  3. Add: "I dropped a book, a pencil, and a paper clip, and each one also fell to the floor." (correct answer)
  4. Add: "Gravity pulls things down because gravity pulls things down."
Explanation: This question tests 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically strengthening argument by adding evidence. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects, (2) Evidence - observations or data that relate to claim, and (3) Reasoning - explicit explanation of how evidence supports claim. For this question, students need to identify which revision adds relevant evidence that genuinely strengthens the argument. Choice C is correct because it adds evidence that genuinely strengthens argument by providing additional examples of different objects falling - multiple pieces of evidence showing same pattern make argument stronger. This shows the student understands evidence must be relevant to claim and multiple examples strengthen arguments about universal principles like gravity. Choice B represents a common error where students add irrelevant evidence that doesn't support the claim - describing object properties rather than behavior related to gravity. This typically happens because students may list observations but not consider whether observations relate to claim being made. To help students: Practice distinguishing relevant from irrelevant evidence using prompts: 'Does this observation tell us something about how gravity affects objects?' Model adding evidence: 'To strengthen this argument, we need more examples of objects falling. Each additional example that falls supports our claim that gravity pulls ALL objects.' Create evidence banks where students sort observations into 'supports claim about gravity' and 'doesn't support claim.' Watch for: Students who add descriptions of object properties rather than observations about gravitational effects, or who think any additional information strengthens arguments.

Question 6

Using the data from a bathroom scale, which argument best explains how gravity affects objects near Earth? A backpack had a weight of 3 pounds on the scale. A large book had a weight of 2 pounds on the scale. Both stayed on the floor when placed down.

  1. Claim: Gravity gives objects weight near Earth. Evidence: The scale showed 3 pounds for the backpack and 2 pounds for the book. Reasoning: Because a scale measures the pull of gravity on objects, these weights show gravity is pulling on both items. (correct answer)
  2. Claim: Gravity only affects objects that are moving. Evidence: The backpack and book stayed still on the floor. Reasoning: Since they did not move, gravity was not acting on them.
  3. Claim: Gravity is stronger on objects with brighter colors. Evidence: The backpack was blue and the book was red. Reasoning: Because colors are different, gravity must pull differently on each object.
  4. Claim: Gravity pulls objects toward Earth. Evidence: The backpack weighed 3 pounds. Reasoning: The backpack weighed 3 pounds, so gravity pulls objects toward Earth.
Explanation: This question tests 5th graders' ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically identifying strongest argument among options. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects, (2) Evidence - observations or data that relate to claim, and (3) Reasoning - explicit explanation of how evidence supports claim. For this question, students need to identify which of several arguments has clear claim, relevant evidence, and explicit reasoning. Choice A is correct because it includes all three components - clear claim about gravity's effects ('Gravity gives objects weight near Earth'), relevant evidence from observations ('The scale showed 3 pounds for the backpack and 2 pounds for the book'), and explicit reasoning connecting them ('Because a scale measures the pull of gravity on objects, these weights show gravity is pulling on both items'). Choice D represents a common error where students provide claim and evidence but omit reasoning that connects them - it states the claim and evidence but doesn't explain WHY the weight measurement shows that gravity pulls objects toward Earth. To help students: Practice constructing arguments step-by-step: First identify what claim we want to make, then gather relevant evidence, finally explain how evidence supports claim. Watch for: Students who think evidence alone is sufficient argument or who can state claim clearly but struggle to explain logical connection from evidence to claim.

Question 7

Using these observations, which argument best explains why a jumped-up ball comes back down near Earth? A student threw a rubber ball straight up. The ball slowed down, stopped for a moment, and then fell back to the ground.

  1. Claim: Gravity pulls objects toward Earth. Evidence: The ball slowed, stopped, and then fell back down. Reasoning: Because gravity pulls downward, it can slow an object moving up and then bring it back toward Earth. (correct answer)
  2. Claim: Gravity makes objects keep moving up forever. Evidence: The ball went up first. Reasoning: Since it went up, gravity must have pushed it upward the whole time.
  3. Claim: The ball fell because it got tired. Evidence: The ball stopped for a moment. Reasoning: Since it stopped, it must have needed rest and then chose to fall.
  4. Claim: Gravity is only present at night. Evidence: The student threw the ball during the day. Reasoning: Because it was daytime, gravity should not have worked.
Explanation: This question tests 5th graders' ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically constructing arguments to explain complex observations where gravity acts on objects moving upward. A complete scientific argument must explain not just what happens but why it happens based on how gravity works. For this question, students need to construct complete argument explaining why objects thrown upward return to Earth. Choice A is correct because it includes all three components with sophisticated reasoning - clear claim about gravity's continuous effect ('Gravity pulls objects toward Earth'), relevant evidence about the complete motion ('The ball slowed, stopped, and then fell back down'), and explicit reasoning explaining the mechanism ('Because gravity pulls downward, it can slow an object moving up and then bring it back toward Earth'). Choice B represents a common error where students misinterpret initial upward motion as evidence against gravity - thinking that because the ball went up first, gravity must have pushed it upward, rather than understanding that gravity acts downward even on objects moving upward. To help students: Model think-aloud for complex scenarios: 'The ball went up because we threw it up with force. But gravity was pulling down the whole time, which is why it slowed down, stopped, and came back. Gravity didn't stop working - it was always there pulling downward.' Watch for: Students who think gravity only acts on falling objects or who can't explain how gravity affects objects with initial upward motion.

Question 8

Using these observations, choose the best complete argument (claim, evidence, reasoning) that explains how gravity affects water near Earth. Observation: After it rained, water flowed down a sloped sidewalk into a drain.

  1. Claim: Gravity pulls water downhill. Evidence: Rainwater moved down the sloped sidewalk into the drain. Reasoning: Because water moved toward the lower ground without being pushed, this shows gravity pulled it downward. (correct answer)
  2. Claim: Gravity makes water flow uphill. Evidence: Water went into a drain. Reasoning: Drains pull water up, so gravity must pull up too.
  3. Claim: Gravity pulls water downhill. Evidence: Sidewalks are made of concrete. Reasoning: Because concrete is strong, it makes water move.
  4. Claim: Gravity pulls water downhill. Evidence: Water flowed down the sidewalk. Reasoning: Water flowed down because water always chooses to go down.
Explanation: This question tests 5th graders' ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically constructing arguments about how gravity affects water. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects, (2) Evidence - observations or data that relate to claim, and (3) Reasoning - explicit explanation of how evidence supports claim. The reasoning component is often missing in student arguments - they may provide claim and evidence but forget to explain the connection. For this question, students need to choose the best complete argument explaining gravity's effect on water. Choice A is correct because it includes all three components with clear connections - accurate claim ('Gravity pulls water downhill'), relevant evidence ('Rainwater moved down the sloped sidewalk into the drain'), and reasoning that explains the causal relationship ('Because water moved toward the lower ground without being pushed, this shows gravity pulled it downward'). This shows the student understands that gravity affects liquids like water just as it affects solid objects. Choice D represents a common error where students anthropomorphize water, saying it 'chooses' to go down rather than explaining that gravity causes the movement. This typically happens because 5th graders may use everyday language that attributes intention to objects rather than scientific language about forces and effects. To help students: Emphasize that gravity acts on all matter, including liquids. Use demonstrations with water on tilted surfaces to show gravity's effect. Practice using scientific language: 'Gravity pulls/causes' rather than 'water wants/chooses.' Model reasoning that explains forces rather than intentions. Watch for: Students who think gravity only affects solid objects, or students who explain natural phenomena using intention-based rather than force-based reasoning.

Question 9

Based on these observations, a student wrote an incomplete argument:

Claim: Gravity pulls objects toward Earth.
Evidence: When I let go of my water bottle, it fell to the floor.

Which reasoning best connects the evidence to the claim?

  1. Reasoning: The water bottle fell because it is made of plastic, and plastic sinks.
  2. Reasoning: The water bottle fell because the floor was lower than the desk.
  3. Reasoning: Because the bottle moved downward as soon as it was released, this shows a force pulled it toward Earth. (correct answer)
  4. Reasoning: The bottle fell, so the bottle fell, and that is the reason it fell.
Explanation: This question tests 5th graders' ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically completing incomplete argument by providing missing reasoning component. The reasoning component is often missing in student arguments - they may provide claim and evidence but forget to explain the connection. For this question, students need to complete argument by adding reasoning that explains how evidence (water bottle fell) supports claim (gravity pulls objects toward Earth). Choice C is correct because it provides reasoning that genuinely connects given evidence to given claim using causal language ('Because the bottle moved downward as soon as it was released, this shows a force pulled it toward Earth'). This shows the student understands reasoning must explicitly connect evidence to claim using logical explanation. Choice D represents a common error where students use circular reasoning that restates claim rather than explaining connection - saying 'The bottle fell, so the bottle fell' doesn't actually explain how the observation supports the claim about gravity. To help students: Practice adding missing components to incomplete arguments using sentence starters: 'This evidence supports the claim because...' or 'This shows that gravity... because...' Watch for: Students who confuse reasoning (how evidence connects to claim) with more evidence or who provide circular explanations that don't add new understanding.

Question 10

Using the data, construct an argument (claim, evidence, reasoning) about whether gravity affects all objects near Earth: A student released a book, a spoon, and a tennis ball from the same height. All three fell downward to the floor.

Which choice is the strongest complete argument?

  1. Claim: Gravity affects all objects near Earth. Evidence: The book, spoon, and tennis ball all fell downward when released. Reasoning: Because different kinds of objects all moved downward when not supported, this shows gravity pulls on all objects toward Earth. (correct answer)
  2. Claim: Gravity is caused by the floor. Evidence: The objects hit the floor. Reasoning: Since the floor was there, it must have pulled the objects down.
  3. Claim: Gravity affects all objects near Earth. Reasoning: Gravity is a force, so it affects everything. Evidence: I think it is true because we learned it in class.
  4. Evidence: The book, spoon, and tennis ball fell downward when released. Reasoning: This happened because they were dropped, so that is what made them fall.
Explanation: This question tests 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically identifying strongest argument about whether gravity affects all objects. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects, (2) Evidence - observations or data that relate to claim, and (3) Reasoning - explicit explanation of how evidence supports claim. The reasoning component is often missing in student arguments - they may provide claim and evidence but forget to explain the connection. For this question, students need to identify which argument has clear claim, relevant evidence, and explicit reasoning about gravity affecting all objects. Choice A is correct because it includes all three components - clear claim about gravity's universal effect ('Gravity affects all objects near Earth'), relevant evidence from observations ('The book, spoon, and tennis ball all fell downward when released'), and explicit reasoning connecting them ('Because different kinds of objects all moved downward when not supported, this shows gravity pulls on all objects toward Earth'). This shows the student understands reasoning must explicitly connect evidence to claim using causal language. Choice D represents a common error where students provide evidence but omit both claim and proper reasoning - they describe what happened but don't state what it means about gravity or explain the connection. This typically happens because 5th graders may not realize they need to explicitly state their conclusion (claim) and explain how observations support it, thinking the evidence speaks for itself. To help students: Use sentence frames: 'Claim: Gravity [statement about effects]. Evidence: [observations we made]. Reasoning: This evidence supports the claim because [explanation of connection].' Practice identifying missing components in incomplete arguments. Watch for: Students who list observations without drawing conclusions or explaining what observations reveal about gravity's effects, as shown in Choice D which only describes what fell without explaining what this shows about gravity.

Question 11

Using these observations, what is missing from the student's argument to make it a strong, complete argument?
Student's argument: Claim: Gravity pulls objects toward Earth. Evidence: When I dropped my marker, it fell to the floor.

  1. A clearer reasoning statement that explains how the marker falling supports the claim. (correct answer)
  2. A new claim that gravity pushes objects upward when they are dropped.
  3. More opinions about gravity, like saying it is scary or exciting.
  4. A list of the marker's colors and the brand name to support the claim.
Explanation: This question tests 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically evaluating argument quality and identifying what's missing. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects, (2) Evidence - observations or data that relate to claim, and (3) Reasoning - explicit explanation of how evidence supports claim. The reasoning component is often missing in student arguments - they may provide claim and evidence but forget to explain the connection. For this question, students need to evaluate argument and identify that reasoning is missing. Choice A is correct because it correctly identifies what component is missing from argument - the student has claim and evidence but needs reasoning that explains how marker falling supports claim about gravity. This shows the student understands complete arguments need explicit reasoning connecting evidence to claim. Choice C represents a common error where students confuse opinions with scientific argument components. This typically happens because everyday arguments often include opinions, so students may not distinguish between evidence-based reasoning and personal feelings about topics. To help students: Have students evaluate sample arguments using checklist: Does it have claim? Evidence? Reasoning that connects them? Practice identifying missing components: 'This argument has claim and evidence. What's missing? We need to explain WHY the evidence supports the claim.' Use graphic organizers that visually separate three components to make missing pieces obvious. Watch for: Students who think opinions strengthen scientific arguments, or who can identify that something is missing but can't specify which component.

Question 12

Based on these observations, construct a complete argument (claim, evidence, reasoning) about the direction gravity pulls near Earth: A student jumped straight up and came back down to the same spot. A tossed ball went up, slowed down, and then came back down.

Which argument best explains these observations?

  1. Claim: Gravity pushes objects sideways. Evidence: The student landed near the takeoff spot. Reasoning: Since the student did not slide far, gravity must push sideways to keep people in place.
  2. Claim: Gravity pulls upward on objects near Earth. Evidence: The ball went up after it was thrown. Reasoning: Because the ball moved upward, gravity must be pulling it upward.
  3. Claim: Gravity pulls objects downward, toward Earth. Evidence: The student and the ball both came back down after going up. Reasoning: Because both objects returned to the ground after being released, this shows gravity pulls them downward toward Earth. (correct answer)
  4. Claim: Gravity only affects living things. Evidence: The student came back down. Reasoning: Since the student is alive, gravity worked, but it may not work on the ball.
Explanation: This question tests 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically constructing complete argument with claim-evidence-reasoning about gravity's direction. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects (e.g., 'Gravity pulls all objects toward Earth'), (2) Evidence - observations or data that relate to claim (e.g., 'When we dropped 10 different objects, all fell toward the ground'), and (3) Reasoning - explicit explanation of how evidence supports claim (e.g., 'Because all objects fell toward ground regardless of weight or size, this shows that gravity pulls on all objects toward Earth'). For this question, students need to construct complete argument using observations that both student and ball came back down after going up. Choice C is correct because it includes all three components - clear claim about gravity's direction ('Gravity pulls objects downward, toward Earth'), relevant evidence from observations ('The student and the ball both came back down after going up'), and explicit reasoning connecting them ('Because both objects returned to the ground after being released, this shows gravity pulls them downward toward Earth'). This shows the student understands reasoning must explicitly connect evidence to claim. Choice B represents a common error where students use circular reasoning that doesn't actually explain the connection - they incorrectly interpret upward motion as evidence of upward gravity pull, ignoring that the ball came back down. This typically happens because students may focus on one part of the motion (going up) without considering the complete observation (going up then coming down), and may not understand that objects can move against gravity temporarily due to other forces. To help students: Model reasoning with think-aloud: 'We observed that both objects went up but then came back down. What does this tell us about gravity? It tells us that gravity must pull downward, because even though they went up initially, gravity brought them back down. So our reasoning is: Because both returned to ground, this shows gravity pulls downward.' Watch for: Students who confuse temporary upward motion with gravity's direction, or who focus on partial observations rather than complete motion patterns.

Question 13

Based on these observations, choose the strongest complete argument (claim, evidence, reasoning) about gravity acting on objects even when they are not falling: A book stayed on a table without moving. When the table was bumped hard, the book slid off and then fell to the floor.

Which argument best explains this?

  1. Claim: Gravity only works when something is moving fast. Evidence: The book fell after the table was bumped. Reasoning: Therefore, gravity starts only after a bump makes an object fast.
  2. Claim: Gravity is always pulling objects toward Earth, but other forces can hold them up. Evidence: The book stayed on the table, then fell when it slid off. Reasoning: Because the table supported the book at first, it did not fall, but when support was removed, gravity pulled it down to the floor. (correct answer)
  3. Claim: Tables pull objects down. Evidence: The book was on the table before it fell. Reasoning: Since the book touched the table, the table caused it to fall.
  4. Claim: Gravity is always pulling objects toward Earth. Evidence: The book fell. Reasoning: Gravity pulls objects because gravity is gravity.
Explanation: This question tests 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically constructing argument about gravity acting on objects even when they're not falling. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects, (2) Evidence - observations or data that relate to claim, and (3) Reasoning - explicit explanation of how evidence supports claim. For this question, students need to identify strongest argument explaining why book stayed on table then fell when support was removed. Choice B is correct because it includes all three components with sophisticated understanding - clear claim about gravity always pulling but other forces opposing it ('Gravity is always pulling objects toward Earth, but other forces can hold them up'), relevant evidence from both parts of observation ('The book stayed on the table, then fell when it slid off'), and explicit reasoning connecting them ('Because the table supported the book at first, it did not fall, but when support was removed, gravity pulled it down to the floor'). This shows the student understands gravity is always present even when objects aren't falling. Choice A represents a common error where students think gravity only works when objects are moving - claiming gravity starts after a bump shows misunderstanding that gravity is constant force. This typically happens because 5th graders may only associate gravity with falling motion, not understanding it's always pulling even when other forces balance it out. To help students: Use demonstrations with books on tables, asking 'Is gravity pulling on this book right now even though it's not falling? How do we know?' Model complete reasoning: 'Gravity is always pulling down, but the table pushes up with equal force, so the book stays still. When we remove the table's support, only gravity acts, so the book falls.' Watch for: Students who think gravity turns on and off based on motion, or who don't understand that multiple forces can act on objects simultaneously.

Question 14

Construct an argument that explains how gravity affects objects near Earth. Use the observations below, and choose the option that includes a clear claim, evidence, and reasoning.

Observations:

  • A backpack feels heavier when you lift it.
  • A bathroom scale shows a number when you stand on it.
  • When you jump, you come back down to the ground.
  1. Claim: Gravity gives objects weight and pulls them toward Earth. Evidence: The backpack feels heavy, the scale shows a number, and you come back down after jumping. Reasoning: Because gravity pulls downward on objects, it makes them feel heavy and brings them back to the ground. (correct answer)
  2. Claim: Gravity is the same as air. Evidence: Air is all around the backpack. Reasoning: Since air is around everything, air must be gravity.
  3. Claim: Gravity gives objects weight. Reasoning: If there is gravity, objects have weight, so gravity must exist.
  4. Evidence: The backpack feels heavier and the scale shows a number. Reasoning: Because of these observations, something is happening to the backpack and the person.
Explanation: This question tests a 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically constructing complete argument with claim-evidence-reasoning using given observations. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects (e.g., 'Gravity pulls all objects toward Earth'), (2) Evidence - observations or data that relate to claim (e.g., 'When we dropped 10 different objects, all fell toward the ground'), and (3) Reasoning - explicit explanation of how evidence supports claim (e.g., 'Because all objects fell toward ground regardless of weight or size, this shows that gravity pulls on all objects toward Earth'). The reasoning component is often missing in student arguments - they may provide claim and evidence but forget to explain the connection. For this question, students need to construct complete argument using observations that all dropped objects fell toward ground. Choice A is correct because it includes all three components - clear claim about gravity's effects, relevant evidence from observations, and explicit reasoning connecting them. This shows the student understands complete arguments need claim, evidence, and reasoning. Choice C represents a common error where students provide claim and reasoning but omit evidence that supports the claim. This typically happens because 5th graders may focus on stating claim and finding evidence but not realize they need to explain HOW evidence supports claim. To help students: Use sentence frames: 'Claim: Gravity [statement about effects]. Evidence: [observations we made]. Reasoning: This evidence supports the claim because [explanation of connection].' Watch for: Students who can construct arguments with teacher scaffolding but can't identify argument components independently.

Question 15

Using the data, which argument best explains the direction of gravity near Earth?

Data: Students dropped a rubber ball at three different places.

  • In the classroom: the ball fell toward the floor.
  • On the playground: the ball fell toward the ground.
  • On a hill: the ball fell toward the ground below.
  1. Claim: Gravity pulls objects sideways. Evidence: The ball moved toward the floor in the classroom. Reasoning: Floors are flat, so gravity must pull sideways across flat surfaces.
  2. Claim: Gravity pulls objects upward. Evidence: The ball was held up before it was dropped. Reasoning: Since it started up high, gravity must pull it upward first.
  3. Claim: Gravity always pulls objects downward toward Earth. Evidence: In all three places, the dropped ball fell toward the ground. Reasoning: Because the ball always moved downward when released, this shows gravity pulls objects toward Earth everywhere near Earth. (correct answer)
  4. Claim: Gravity depends on the color of the ball. Evidence: The ball was red. Reasoning: Red objects fall, so gravity must pull red objects more.
Explanation: This question tests a 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically identifying strongest argument among options that correctly addresses the direction of gravity's pull. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects (e.g., 'Gravity pulls all objects toward Earth'), (2) Evidence - observations or data that relate to claim (e.g., 'When we dropped 10 different objects, all fell toward the ground'), and (3) Reasoning - explicit explanation of how evidence supports claim (e.g., 'Because all objects fell toward ground regardless of weight or size, this shows that gravity pulls on all objects toward Earth'). The reasoning component is often missing in student arguments - they may provide claim and evidence but forget to explain the connection. For this question, students need to identify which of several arguments has clear claim, relevant evidence, and explicit reasoning. Choice C is correct because it includes all three components - clear claim about gravity's effects, relevant evidence from observations in multiple locations, and explicit reasoning connecting them using 'because' language. This shows the student understands reasoning must explicitly connect evidence to claim. Choice A represents a common error where students provide vague claim without specific statement about gravity's effects and use irrelevant evidence that doesn't support the claim. This typically happens because 5th graders may list observations but not take next step of explaining what observations reveal about gravity's effects. To help students: Model reasoning with think-aloud: 'We observed that all objects fell toward ground. What does this tell us about gravity? It tells us that gravity must pull on all objects, because if gravity didn't pull on some objects, those objects wouldn't fall. So our reasoning is: Because all objects fell, this shows gravity pulls on all objects'. Watch for: Students who provide description ('objects fall') without explanation of what this shows about gravity.

Question 16

Based on these observations, which argument best explains what happens when an object is released near Earth?

Observations:

  • A student held a basketball still, then let go.
  • The basketball started moving right away.
  • It moved downward until it hit the ground.
  1. Claim: Gravity makes objects move upward when released. Evidence: The basketball was held up before it was released. Reasoning: Since it started high, gravity must pull it higher.
  2. Claim: Gravity causes released objects to fall toward Earth. Evidence: The basketball started moving right away and moved downward until it hit the ground. Reasoning: Because the ball moved down as soon as it was not supported, this shows gravity pulls it toward Earth. (correct answer)
  3. Claim: Gravity depends on the sport being played. Evidence: The object was a basketball. Reasoning: Because it is used in basketball, it falls, but other balls might not.
  4. Claim: Gravity is a sound. Evidence: The ball made a noise when it hit the ground. Reasoning: Because it was loud, gravity must be sound waves.
Explanation: This question tests a 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically identifying strongest argument among options based on observations of motion. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects (e.g., 'Gravity pulls all objects toward Earth'), (2) Evidence - observations or data that relate to claim (e.g., 'When we dropped 10 different objects, all fell toward the ground'), and (3) Reasoning - explicit explanation of how evidence supports claim (e.g., 'Because all objects fell toward ground regardless of weight or size, this shows that gravity pulls on all objects toward Earth'). The reasoning component is often missing in student arguments - they may provide claim and evidence but forget to explain the connection. For this question, students need to identify which of several arguments has clear claim, relevant evidence, and explicit reasoning. Choice B is correct because it includes all three components - clear claim about gravity's effects, relevant evidence from observations, and explicit reasoning connecting them using 'because' language. This shows the student understands reasoning must explicitly connect evidence to claim. Choice A represents a common error where students describe observations without drawing conclusion or explaining what they show. This typically happens because 5th graders may list observations but not take next step of explaining what observations reveal about gravity's effects. To help students: Model reasoning with think-aloud: 'We observed that all objects fell toward ground. What does this tell us about gravity? It tells us that gravity must pull on all objects, because if gravity didn't pull on some objects, those objects wouldn't fall. So our reasoning is: Because all objects fell, this shows gravity pulls on all objects'. Watch for: Students who provide description ('objects fall') without explanation of what this shows about gravity.

Question 17

The evidence shows that a helium balloon can float up when you let it go, but a rock falls down when you drop it. Which argument best explains how gravity affects both objects near Earth?

Observations:

  • Helium balloon: rose upward.
  • Rock: fell downward.
  1. Claim: Gravity pulls up on balloons and down on rocks. Evidence: The balloon went up and the rock went down. Reasoning: Since they moved in different directions, gravity must pull in different directions.
  2. Claim: Gravity pulls only on rocks, not on balloons. Evidence: The rock fell down. Reasoning: Because the balloon rose, gravity must not affect it at all.
  3. Claim: Gravity pulls all objects toward Earth, but other forces can push up. Evidence: The rock fell down, but the helium balloon rose upward. Reasoning: Because gravity still pulls both objects down, the balloon must have a stronger upward push from the air that makes it rise. (correct answer)
  4. Claim: Gravity is not real. Evidence: The balloon rose upward. Reasoning: If one thing goes up, then nothing can be pulled down by gravity.
Explanation: This question tests a 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically identifying strongest argument among options that accounts for exceptions like floating objects. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects (e.g., 'Gravity pulls all objects toward Earth'), (2) Evidence - observations or data that relate to claim (e.g., 'When we dropped 10 different objects, all fell toward the ground'), and (3) Reasoning - explicit explanation of how evidence supports claim (e.g., 'Because all objects fell toward ground regardless of weight or size, this shows that gravity pulls on all objects toward Earth'). The reasoning component is often missing in student arguments - they may provide claim and evidence but forget to explain the connection. For this question, students need to identify which of several arguments has clear claim, relevant evidence, and explicit reasoning. Choice C is correct because it includes all three components - clear claim about gravity's effects, relevant evidence from observations, and explicit reasoning connecting them while addressing counterexamples. This shows the student understands stronger arguments have clear logical structure. Choice D represents a common error where students state opinion ('I think gravity is strong') rather than evidence-based argument. This typically happens because everyday arguments often skip explicit reasoning, so students may not naturally include it. To help students: Have students evaluate sample arguments and identify which component is strongest and which needs improvement. Watch for: Students who think evidence alone is sufficient argument.

Question 18

Using the data in the table, which argument best explains how gravity affects objects near Earth?

Data from a class test (each object was dropped from the same height):

  • Pencil: fell to the floor
  • Eraser: fell to the floor
  • Tennis ball: fell to the floor
  • Coin: fell to the floor
  • Crumpled paper: fell to the floor
  1. Claim: Gravity only pulls on heavy objects. Evidence: The coin fell to the floor. Reasoning: Since the coin is heavy, it fell, so gravity works only on heavy things.
  2. Claim: Gravity pulls objects toward Earth. Evidence: The pencil, eraser, tennis ball, coin, and crumpled paper all fell to the floor. Reasoning: Because every dropped object moved downward, this shows gravity pulls objects toward Earth. (correct answer)
  3. Claim: Gravity makes objects change color. Evidence: The pencil stayed yellow after it fell. Reasoning: Because it did not change, gravity kept the color the same.
  4. Claim: Gravity pulls objects toward Earth. Evidence: The pencil, eraser, tennis ball, coin, and crumpled paper all fell to the floor.
Explanation: This question tests a 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically identifying the strongest argument among options by evaluating which has a complete structure with claim, evidence, and reasoning. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects (e.g., 'Gravity pulls all objects toward Earth'), (2) Evidence - observations or data that relate to claim (e.g., 'When we dropped 10 different objects, all fell toward the ground'), and (3) Reasoning - explicit explanation of how evidence supports claim (e.g., 'Because all objects fell toward ground regardless of weight or size, this shows that gravity pulls on all objects toward Earth'). The reasoning component is often missing in student arguments - they may provide claim and evidence but forget to explain the connection. For this question, students need to identify which of several arguments has clear claim, relevant evidence, and explicit reasoning. Choice B is correct because it includes all three components - clear claim about gravity's effects, relevant evidence from observations of multiple objects falling, and explicit reasoning connecting them using 'because' language. This shows the student understands complete arguments need claim, evidence, and reasoning. Choice D represents a common error where students provide claim and evidence but omit reasoning that connects them. This typically happens because 5th graders may not yet understand that reasoning (explanation of connection) is separate necessary component - they may think evidence alone is sufficient. To help students: Explicitly teach and model three-component structure using graphic organizer with separate boxes for Claim, Evidence, and Reasoning. Watch for: Students who provide claim and evidence but omit reasoning.

Question 19

Based on these observations, which argument is the strongest about how gravity affects objects near Earth?

Observations:

  1. When Maya let go of her book, it fell straight down.
  2. When she tossed a ball up, it slowed down, stopped, and came back down.
  3. A puddle of water flowed downhill after it rained.
  1. Claim: Gravity pulls objects toward Earth. Evidence: The book fell down, the ball came back down, and water flowed downhill. Reasoning: Because all these things moved downward toward the ground, this shows gravity pulls objects toward Earth. (correct answer)
  2. Claim: Gravity only works when it is raining. Evidence: Water flowed downhill after it rained. Reasoning: Since rain happened first, gravity must start working after rain.
  3. Claim: Gravity is a kind of light. Evidence: The ball is round and shiny. Reasoning: Because shiny things reflect light, gravity must be light too.
  4. Claim: Gravity pulls objects toward Earth. Evidence: The book fell straight down and the ball came back down. Reasoning: Gravity pulls objects because gravity pulls objects.
Explanation: This question tests a 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically comparing arguments to identify which has better support through complete claim, evidence, and reasoning. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects (e.g., 'Gravity pulls all objects toward Earth'), (2) Evidence - observations or data that relate to claim (e.g., 'When we dropped 10 different objects, all fell toward the ground'), and (3) Reasoning - explicit explanation of how evidence supports claim (e.g., 'Because all objects fell toward ground regardless of weight or size, this shows that gravity pulls on all objects toward Earth'). The reasoning component is often missing in student arguments - they may provide claim and evidence but forget to explain the connection. For this question, students need to identify which of several arguments has clear claim, relevant evidence, and explicit reasoning. Choice A is correct because it includes all three components - clear claim about gravity's effects, relevant evidence from multiple observations, and explicit reasoning connecting them using 'because' language. This shows the student understands stronger arguments have clear logical structure. Choice D represents a common error where students use circular reasoning that restates claim rather than explaining connection. This typically happens because 5th graders may struggle with causal/logical language needed for reasoning ('because,' 'this shows that,' 'therefore'). To help students: Practice constructing arguments step-by-step: First identify what claim we want to make, then gather relevant evidence, finally explain how evidence supports claim. Watch for: Students who confuse reasoning (how evidence connects to claim) with more evidence.

Question 20

Based on these observations, which option completes the argument by adding the best reasoning?

Claim: Gravity pulls objects toward Earth.
Evidence: When Carlos dropped a spoon, a marble, and a paper clip, all three fell to the floor.

  1. Reasoning: Because the spoon, marble, and paper clip all moved downward when released, this shows a force pulls them toward Earth. (correct answer)
  2. Reasoning: Because the objects are small, they fell, but big objects would float upward.
  3. Reasoning: Because the floor is hard, it makes objects fall faster than the air does.
  4. Reasoning: Because Carlos wanted them to fall, they fell to the floor.
Explanation: This question tests a 5th grader's ability to construct simple arguments explaining how gravity affects objects near Earth (NGSS 5-PS2-1), specifically completing incomplete argument by providing missing component of reasoning. A complete scientific argument has three components: (1) Claim - clear statement about how gravity affects objects (e.g., 'Gravity pulls all objects toward Earth'), (2) Evidence - observations or data that relate to claim (e.g., 'When we dropped 10 different objects, all fell toward the ground'), and (3) Reasoning - explicit explanation of how evidence supports claim (e.g., 'Because all objects fell toward ground regardless of weight or size, this shows that gravity pulls on all objects toward Earth'). The reasoning component is often missing in student arguments - they may provide claim and evidence but forget to explain the connection. For this question, students need to complete argument by adding reasoning that explains how evidence (all objects fall) supports claim (gravity pulls all objects toward Earth). Choice A is correct because it provides reasoning that genuinely connects given evidence to given claim using 'because' or 'this shows' language. This shows the student understands reasoning explains causal or logical relationship between observations and conclusions. Choice B represents a common error where students provide reasoning that doesn't actually connect the evidence to the claim logically. This typically happens because 5th graders may not yet understand that reasoning (explanation of connection) is separate necessary component - they may think evidence alone is sufficient. To help students: Practice adding missing components to incomplete arguments. Watch for: Students who include all three components but reasoning doesn't actually connect evidence to claim logically.