- Marcus is making a lunchbox to keep a snack cold. Look at the test results (minutes until ice melted): paper 5, plastic 10, fabric 12, foam 25. Which material is best? Explain using the test results.
Answer: Foam, because the test showed ice melted in 25 minutes, so it kept cold the longest.
This question assesses the skill 2-PS1-2: Using evidence from tests to explain material choice and justify why a material's properties are best suited for a purpose. When we choose materials, we use DATA from tests, not just opinions. We look at test results to find which material has the properties we need. Then we EXPLAIN our choice using EVIDENCE—'The test showed foam kept ice frozen for 25 minutes (longest), so foam is best for keeping things cold.' We connect the data to the purpose. The purpose is to make a lunchbox to keep a snack cold; students tested paper, plastic, fabric, and foam by measuring minutes until ice melted, with results: paper 5, plastic 10, fabric 12, foam 25; the purpose requires keeping cold the longest, so we need to find which material had the highest time. The correct answer is B because it correctly identifies foam as the best choice AND provides evidence from the test (ice melted in 25 minutes); the reasoning connects the evidence to the purpose—foam performed best, which means it will keep the snack cold; this answer uses data, not opinion. Choice A is incorrect because it chose a middle performer not best (plastic with 10 minutes); this error happens when students select middle performer. To help students justify material choices with evidence: Teach 3-step process—(1) What do we need? (strong, waterproof, etc.), (2) Which material performed best for that property? (check the data), (3) State choice with evidence: 'I choose [material] because the test showed [specific data], and [purpose] needs [property].' Use sentence frames: '[Material], because the test showed [evidence], so it is [property] enough for [purpose].' Model finding evidence: Point to data table, identify highest/best result, explain why that matters for the purpose. Emphasize: 'I like it' is not evidence; 'The test showed it held 12 books' IS evidence. Practice with clear examples first (obvious best choice), then more complex scenarios (tradeoffs, two equally good options). Watch for: Students who choose based on favorite color/material, give evidence without stating material, select middle performer, or use wrong/made-up data. Require students to point to specific test result that supports their choice.
- Carlos is building an outdoor toy that will get rained on. Look at the test results after rain: paper wet and torn, wood damp but okay, plastic dry and fine, metal dry with rusty spots. Which material should we use? Explain using the test results.
Answer: Plastic, because the test showed it was dry and fine after rain, so it lasts outside.
This question assesses the skill 2-PS1-2: Using evidence from tests to explain material choice and justify why a material's properties are best suited for a purpose. When we choose materials, we use DATA from tests, not just opinions. We look at test results to find which material has the properties we need. Then we EXPLAIN our choice using EVIDENCE—'The test showed foam kept ice frozen for 25 minutes (longest), so foam is best for keeping things cold.' We connect the data to the purpose. The purpose is to build an outdoor toy that will get rained on; students tested paper, wood, plastic, and metal by exposing to rain and checking condition, with results: paper wet and torn, wood damp but okay, plastic dry and fine, metal dry with rusty spots; the purpose requires weather resistance, so we need to find which material stayed in the best condition. The correct answer is B because it correctly identifies plastic as the best choice AND provides evidence from the test (dry and fine after rain); the reasoning connects the evidence to the purpose—plastic performed best, which means it will work well for lasting outside; this answer uses data, not opinion. Choice A is incorrect because it chose the worst-performing material (paper got wet and torn); this error happens when students don't compare all materials. To help students justify material choices with evidence: Teach 3-step process—(1) What do we need? (strong, waterproof, etc.), (2) Which material performed best for that property? (check the data), (3) State choice with evidence: 'I choose [material] because the test showed [specific data], and [purpose] needs [property].' Use sentence frames: '[Material], because the test showed [evidence], so it is [property] enough for [purpose].' Model finding evidence: Point to data table, identify highest/best result, explain why that matters for the purpose. Emphasize: 'I like it' is not evidence; 'The test showed it held 12 books' IS evidence. Practice with clear examples first (obvious best choice), then more complex scenarios (tradeoffs, two equally good options). Watch for: Students who choose based on favorite color/material, give evidence without stating material, select middle performer, or use wrong/made-up data. Require students to point to specific test result that supports their choice.
- Emma is making an outdoor toy that will be left in the rain. Look at the test results after rain: paper wet and torn, wood damp but okay, plastic dry and fine, metal dry with rusty spots. Which material is best? Explain using evidence.
Answer: Plastic, because the test showed it was dry and fine after rain, so it is best outside.
This question assesses the skill 2-PS1-2: Using evidence from tests to explain material choice and justify why a material's properties are best suited for a purpose. When we choose materials, we use DATA from tests, not just opinions. We look at test results to find which material has the properties we need. Then we EXPLAIN our choice using EVIDENCE—'The test showed foam kept ice frozen for 25 minutes (longest), so foam is best for keeping things cold.' We connect the data to the purpose. The purpose is to make an outdoor toy that will be left in the rain; students tested paper, wood, plastic, and metal by exposing to rain and checking condition, with results: paper wet and torn, wood damp but okay, plastic dry and fine, metal dry with rusty spots; the purpose requires durability in rain, so we need to find which material was in the best condition after rain. The correct answer is B because it correctly identifies plastic as the best choice AND provides evidence from the test (dry and fine after rain); the reasoning connects the evidence to the purpose—plastic performed best, which means it is best outside; this answer uses data, not opinion. Choice C is incorrect because it stated wrong data (plastic was wet and torn, but test showed dry and fine); this error happens when students use wrong/made-up data. To help students justify material choices with evidence: Teach 3-step process—(1) What do we need? (strong, waterproof, etc.), (2) Which material performed best for that property? (check the data), (3) State choice with evidence: 'I choose [material] because the test showed [specific data], and [purpose] needs [property].' Use sentence frames: '[Material], because the test showed [evidence], so it is [property] enough for [purpose].' Model finding evidence: Point to data table, identify highest/best result, explain why that matters for the purpose. Emphasize: 'I like it' is not evidence; 'The test showed it held 12 books' IS evidence. Practice with clear examples first (obvious best choice), then more complex scenarios (tradeoffs, two equally good options). Watch for: Students who choose based on favorite color/material, give evidence without stating material, select middle performer, or use wrong/made-up data. Require students to point to specific test result that supports their choice.
- Chen is making a lunchbox that keeps food cold. Look at the test results (minutes until ice melted): paper 5, plastic 10, fabric 12, foam 25. Which material is best? Explain using the test results.
Answer: Foam, because the test showed the ice melted in 25 minutes, so it kept ice the longest.
This question assesses the skill 2-PS1-2: Using evidence from tests to explain material choice and justify why a material's properties are best suited for a purpose. When we choose materials, we use DATA from tests, not just opinions. We look at test results to find which material has the properties we need. Then we EXPLAIN our choice using EVIDENCE—'The test showed foam kept ice frozen for 25 minutes (longest), so foam is best for keeping things cold.' We connect the data to the purpose. The purpose is to make a lunchbox that keeps food cold; students tested paper, plastic, fabric, and foam by measuring minutes until ice melted, with results: paper 5, plastic 10, fabric 12, foam 25; the purpose requires insulation to keep cold longest, so we need to find which material had the longest time. The correct answer is A because it correctly identifies foam as the best choice AND provides evidence from the test (ice melted in 25 minutes); the reasoning connects the evidence to the purpose—foam performed best, which means it will work well for keeping food cold; this answer uses data, not opinion. Choice C is incorrect because it stated wrong data (foam melted in 5 minutes instead of 25); this error happens when students misread results. To help students justify material choices with evidence: Teach 3-step process—(1) What do we need? (strong, waterproof, etc.), (2) Which material performed best for that property? (check the data), (3) State choice with evidence: 'I choose [material] because the test showed [specific data], and [purpose] needs [property].' Use sentence frames: '[Material], because the test showed [evidence], so it is [property] enough for [purpose].' Model finding evidence: Point to data table, identify highest/best result, explain why that matters for the purpose. Emphasize: 'I like it' is not evidence; 'The test showed it held 12 books' IS evidence. Practice with clear examples first (obvious best choice), then more complex scenarios (tradeoffs, two equally good options). Watch for: Students who choose based on favorite color/material, give evidence without stating material, select middle performer, or use wrong/made-up data. Require students to point to specific test result that supports their choice.
- Maya is building a small bridge for toy cars. The bridge must be strong. Look at the test results (books held before breaking): paper 3, cardboard 5, plastic 8, wood 12. Which material should we use? Explain using the test results.
Answer: Wood, because the test showed it held 12 books, so it is strongest for a bridge.
This question assesses the skill 2-PS1-2: Using evidence from tests to explain material choice and justify why a material's properties are best suited for a purpose. When we choose materials, we use DATA from tests, not just opinions. We look at test results to find which material has the properties we need. Then we EXPLAIN our choice using EVIDENCE—'The test showed foam kept ice frozen for 25 minutes (longest), so foam is best for keeping things cold.' We connect the data to the purpose. The purpose is to build a small bridge for toy cars that must be strong; students tested paper, cardboard, plastic, and wood by seeing how many books they held before breaking, with results: paper 3, cardboard 5, plastic 8, wood 12; the purpose requires strength to hold weight, so we need to find which material held the most books. The correct answer is B because it correctly identifies wood as the best choice AND provides evidence from the test (held 12 books); the reasoning connects the evidence to the purpose—wood performed best, which means it will work well for a strong bridge; this answer uses data, not opinion. Choice D is incorrect because it chose wood but gave opinion not evidence ('I like wood and it looks nice'); this error happens when students use opinion instead of data. To help students justify material choices with evidence: Teach 3-step process—(1) What do we need? (strong, waterproof, etc.), (2) Which material performed best for that property? (check the data), (3) State choice with evidence: 'I choose [material] because the test showed [specific data], and [purpose] needs [property].' Use sentence frames: '[Material], because the test showed [evidence], so it is [property] enough for [purpose].' Model finding evidence: Point to data table, identify highest/best result, explain why that matters for the purpose. Emphasize: 'I like it' is not evidence; 'The test showed it held 12 books' IS evidence. Practice with clear examples first (obvious best choice), then more complex scenarios (tradeoffs, two equally good options). Watch for: Students who choose based on favorite color/material, give evidence without stating material, select middle performer, or use wrong/made-up data. Require students to point to specific test result that supports their choice.
- Sofia is making a kite. The kite should be light and bendable. Look at the test results: paper light and bendable, cardboard heavy and stiff, fabric light and bendable, wood heavy and stiff. Which material would you choose? Use the data to explain.
Answer: Fabric, because the test showed it is light and bendable, so it can fly well.
This question assesses the skill 2-PS1-2: Using evidence from tests to explain material choice and justify why a material's properties are best suited for a purpose. When we choose materials, we use DATA from tests, not just opinions. We look at test results to find which material has the properties we need. Then we EXPLAIN our choice using EVIDENCE—'The test showed foam kept ice frozen for 25 minutes (longest), so foam is best for keeping things cold.' We connect the data to the purpose. The purpose is to make a kite that should be light and bendable; students tested paper, cardboard, fabric, and wood for weight and flexibility, with results: paper light and bendable, cardboard heavy and stiff, fabric light and bendable, wood heavy and stiff; the purpose requires lightness and bendability, so we need to find which material has the best matching properties. The correct answer is B because it correctly identifies fabric as the best choice AND provides evidence from the test (light and bendable); the reasoning connects the evidence to the purpose—fabric performed best, which means it will work well for a kite that can fly; this answer uses data, not opinion. Choice D is incorrect because it chose fabric but gave opinion not evidence ('fabric is my favorite'); this error happens when students use opinion instead of data. To help students justify material choices with evidence: Teach 3-step process—(1) What do we need? (strong, waterproof, etc.), (2) Which material performed best for that property? (check the data), (3) State choice with evidence: 'I choose [material] because the test showed [specific data], and [purpose] needs [property].' Use sentence frames: '[Material], because the test showed [evidence], so it is [property] enough for [purpose].' Model finding evidence: Point to data table, identify highest/best result, explain why that matters for the purpose. Emphasize: 'I like it' is not evidence; 'The test showed it held 12 books' IS evidence. Practice with clear examples first (obvious best choice), then more complex scenarios (tradeoffs, two equally good options). Watch for: Students who choose based on favorite color/material, give evidence without stating material, select middle performer, or use wrong/made-up data. Require students to point to specific test result that supports their choice.
- Keisha needs a cleaning cloth to soak up spills. Look at the test results (drops of water absorbed): plastic 0, paper towel 15, cotton 20, foil 0. Which material is best? Explain using the test results.
Answer: Cotton, because the test showed it absorbed 20 drops, so it soaks up the most water.
This question assesses the skill 2-PS1-2: Using evidence from tests to explain material choice and justify why a material's properties are best suited for a purpose. When we choose materials, we use DATA from tests, not just opinions. We look at test results to find which material has the properties we need. Then we EXPLAIN our choice using EVIDENCE—'The test showed foam kept ice frozen for 25 minutes (longest), so foam is best for keeping things cold.' We connect the data to the purpose. The purpose is to make a cleaning cloth to soak up spills; students tested plastic, paper towel, cotton, and foil by measuring drops of water absorbed, with results: plastic 0, paper towel 15, cotton 20, foil 0; the purpose requires absorbency, so we need to find which material absorbed the most drops. The correct answer is A because it correctly identifies cotton as the best choice AND provides evidence from the test (absorbed 20 drops); the reasoning connects the evidence to the purpose—cotton performed best, which means it will work well for soaking up water; this answer uses data, not opinion. Choice B is incorrect because it chose the worst-performing material (plastic absorbed 0); this error happens when students confuse the purpose. To help students justify material choices with evidence: Teach 3-step process—(1) What do we need? (strong, waterproof, etc.), (2) Which material performed best for that property? (check the data), (3) State choice with evidence: 'I choose [material] because the test showed [specific data], and [purpose] needs [property].' Use sentence frames: '[Material], because the test showed [evidence], so it is [property] enough for [purpose].' Model finding evidence: Point to data table, identify highest/best result, explain why that matters for the purpose. Emphasize: 'I like it' is not evidence; 'The test showed it held 12 books' IS evidence. Practice with clear examples first (obvious best choice), then more complex scenarios (tradeoffs, two equally good options). Watch for: Students who choose based on favorite color/material, give evidence without stating material, select middle performer, or use wrong/made-up data. Require students to point to specific test result that supports their choice.
- Yuki needs a raincoat that stays dry in the rain. Look at the test results: paper soaked yes, fabric soaked yes, plastic soaked no, foil soaked no. Which material should be used? Explain using the test results.
Answer: Foil, because the test showed it did not soak, so it keeps water out.
This question assesses the skill 2-PS1-2: Using evidence from tests to explain material choice and justify why a material's properties are best suited for a purpose. When we choose materials, we use DATA from tests, not just opinions. We look at test results to find which material has the properties we need. Then we EXPLAIN our choice using EVIDENCE—'The test showed foam kept ice frozen for 25 minutes (longest), so foam is best for keeping things cold.' We connect the data to the purpose. The purpose is to make a raincoat that stays dry in the rain; students tested paper, fabric, plastic, and foil by checking if they soaked, with results: paper yes, fabric yes, plastic no, foil no; the purpose requires waterproofing, so we need to find which material did not soak. The correct answer is A because it correctly identifies foil as the best choice AND provides evidence from the test (did not soak); the reasoning connects the evidence to the purpose—foil performed best, which means it will keep water out; this answer uses data, not opinion. Choice C is incorrect because it stated wrong data (foil soaked through, but test showed no); this error happens when students misread results. To help students justify material choices with evidence: Teach 3-step process—(1) What do we need? (strong, waterproof, etc.), (2) Which material performed best for that property? (check the data), (3) State choice with evidence: 'I choose [material] because the test showed [specific data], and [purpose] needs [property].' Use sentence frames: '[Material], because the test showed [evidence], so it is [property] enough for [purpose].' Model finding evidence: Point to data table, identify highest/best result, explain why that matters for the purpose. Emphasize: 'I like it' is not evidence; 'The test showed it held 12 books' IS evidence. Practice with clear examples first (obvious best choice), then more complex scenarios (tradeoffs, two equally good options). Watch for: Students who choose based on favorite color/material, give evidence without stating material, select middle performer, or use wrong/made-up data. Require students to point to specific test result that supports their choice.
- Amir is building a small bridge for toy animals. It must hold the most books. Look at the test results: paper 3 books, cardboard 5 books, plastic 8 books, wood 12 books. Which material works best? Explain your answer using the data.
Answer: Wood, because the test showed it held 12 books, so it can hold the most.
This question assesses the skill 2-PS1-2: Using evidence from tests to explain material choice and justify why a material's properties are best suited for a purpose. When we choose materials, we use DATA from tests, not just opinions. We look at test results to find which material has the properties we need. Then we EXPLAIN our choice using EVIDENCE—'The test showed foam kept ice frozen for 25 minutes (longest), so foam is best for keeping things cold.' We connect the data to the purpose. The purpose is to build a small bridge for toy animals that must hold the most books; students tested paper, cardboard, plastic, and wood by seeing how many books they held, with results: paper 3, cardboard 5, plastic 8, wood 12; the purpose requires strength, so we need to find which material held the most books. The correct answer is C because it correctly identifies wood as the best choice AND provides evidence from the test (held 12 books); the reasoning connects the evidence to the purpose—wood performed best, which means it can hold the most weight; this answer uses data, not opinion. Choice A is incorrect because it chose a middle performer not best (cardboard held 5, not the most); this error happens when students don't compare all materials. To help students justify material choices with evidence: Teach 3-step process—(1) What do we need? (strong, waterproof, etc.), (2) Which material performed best for that property? (check the data), (3) State choice with evidence: 'I choose [material] because the test showed [specific data], and [purpose] needs [property].' Use sentence frames: '[Material], because the test showed [evidence], so it is [property] enough for [purpose].' Model finding evidence: Point to data table, identify highest/best result, explain why that matters for the purpose. Emphasize: 'I like it' is not evidence; 'The test showed it held 12 books' IS evidence. Practice with clear examples first (obvious best choice), then more complex scenarios (tradeoffs, two equally good options). Watch for: Students who choose based on favorite color/material, give evidence without stating material, select middle performer, or use wrong/made-up data. Require students to point to specific test result that supports their choice.
