Practice Test 8 - 1st Grade Science
20 questions. Answer them in any order, then submit to see your score and every explanation.
- Read the plan. What should Jamal observe? QUESTION: Do vibrating things make sound? MATERIALS: drum, hand STEPS: 1) Touch the drum top. It is still. 2) Tap the drum. 3) Look at the drum top and listen. OBSERVE: Is the drum top shaking? What sound do you hear? RESULT: The drum top shakes and the drum goes boom.
- Chen drops blocks when carrying them to the rug. He sketches a tray that is a big rectangle with raised edges on all four sides. He draws the edges as taller lines around the tray and writes "edges" near them. The middle of the tray is flat. The sketch shows blocks staying inside the edges. How does the shape in the drawing help solve the problem?
- Read Emma's chart. What can she conclude from evidence?
- Read the plan. What should Marcus observe? QUESTION: Do vibrating things make sound? MATERIALS: ruler, desk STEPS: 1) Put the ruler on the desk edge. 2) Hold it down, push the end, let go. 3) Watch and listen. OBSERVE: What does it do? What do you hear? RESULT: The ruler moves up and down and buzzes.
- Keisha's lunch box leaked juice in her bag. She made a tight lid with a rubber ring like an octopus sucker. She tested it; no juice leaked. Why did copying octopus suckers help?
- Maya notices: In summer it is light at bedtime. In winter it is dark at dinner. What do these observations show?
- Read about sea turtles. What do hatchlings do after hatching?
- Amir saw the moon low at 7 pm, then higher at 9 pm. What pattern is shown?
- Read about deer: What do fawns do to stay safe?
- Keisha drops crayons when she carries them to her table. She sketches a tray that is a wide rectangle with raised edges on all sides. She draws the edges as taller lines around the tray and labels them "edges." She draws crayons inside the tray. The tray looks flat in the middle with walls around it. What does the sketch show about the solution?
- Jamal looked at the sun each day. Morning: low. Noon: high. Evening: low. This repeats Monday, Tuesday, and Wednesday. What pattern do the observations show?
- Read about Emma. Loud music played; water rippled. What caused it?
- In the classroom, Emma and Chen had a problem: crayons got mixed with markers. They made two container designs. Design A was one big box with no dividers. Design B was a box with dividers. When they tested the designs, they used the same test for both: they put the same crayons and markers inside, closed the lid, and shook gently 5 times. They collected data by observing if the crayons and markers mixed or stayed apart. Results: Design A items mixed (yes), Design B items stayed separated (yes). They recorded yes/no in a chart. How did they test both designs fairly?
- A rabbit listens for a fox. How do its ears help it meet its needs?
- In the classroom, Jamal examined a water bottle and a funnel. The problem was water spilled when pouring into the bottle. The funnel has a wide top and a narrow bottom. Jamal said, "The wide top catches the water and the narrow bottom guides it in, so we don't spill." According to Jamal, how does the funnel shape help solve the problem?
- Look at Maya's chart. How do the puppies differ?
- Read about Maya. At night, her room was pitch dark. She could not see her chair or dresser. When the bedroom light turned on, she could see them. What happens when there is no light?
- Read about Sofia's design. She made grippy gloves by copying gecko feet. She used work gloves, puffy paint, a stencil, and scissors. What problem does the design solve?
- In the hallway, the line to lunch gets slow. Amir and Maya want to improve it. They time how long it takes to walk to the cafeteria for 4 days. They count how many students stop to tie shoes. They write down where stops happen most. They learn the line is slow near the water fountain, mostly on Mondays. How are the children gathering information?
- Look at what Keisha found out. She plucked a guitar string and saw it move back and forth fast. She heard a musical sound. When she touched the string, it stopped moving and the sound stopped too. What evidence did Keisha find?