Which Design Works Better - 2nd Grade Science
Card 1 of 15
Which design performs better if the goal is the least material and A uses $15$ cm while B uses $12$ cm?
Which design performs better if the goal is the least material and A uses $15$ cm while B uses $12$ cm?
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Design B performs better. Using less material is better when minimizing usage is the goal.
Design B performs better. Using less material is better when minimizing usage is the goal.
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Identify the correct reason: A holds $12$ coins and B holds $9$ coins; why is A better for holding coins?
Identify the correct reason: A holds $12$ coins and B holds $9$ coins; why is A better for holding coins?
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It holds more coins ($12$ is greater than $9$). Compares the numbers directly to show A's advantage.
It holds more coins ($12$ is greater than $9$). Compares the numbers directly to show A's advantage.
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Which design performs better if the goal is the lowest cost and A costs $7$ dollars while B costs $5$ dollars?
Which design performs better if the goal is the lowest cost and A costs $7$ dollars while B costs $5$ dollars?
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Design B performs better. Lower cost wins when minimizing expense is the goal.
Design B performs better. Lower cost wins when minimizing expense is the goal.
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What does it mean for one design to perform better than another in a test?
What does it mean for one design to perform better than another in a test?
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It meets the goal more successfully using the test results. Better means achieving the design's goal more effectively based on data.
It meets the goal more successfully using the test results. Better means achieving the design's goal more effectively based on data.
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What is a fair test when comparing two designs?
What is a fair test when comparing two designs?
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Only one change is made; all other conditions stay the same. Fair testing requires controlling variables to isolate the design difference.
Only one change is made; all other conditions stay the same. Fair testing requires controlling variables to isolate the design difference.
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Which measurement should you compare first when deciding which design works better?
Which measurement should you compare first when deciding which design works better?
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The measurement that matches the goal of the design. Focus on data that directly relates to what the design should accomplish.
The measurement that matches the goal of the design. Focus on data that directly relates to what the design should accomplish.
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What word best completes this claim: "Design A performed ___ than Design B"?
What word best completes this claim: "Design A performed ___ than Design B"?
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better. "Better" indicates superior performance when comparing designs.
better. "Better" indicates superior performance when comparing designs.
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Which word best signals a comparison between two designs: "because" or "than"?
Which word best signals a comparison between two designs: "because" or "than"?
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than. "Than" creates comparisons; "because" explains reasons.
than. "Than" creates comparisons; "because" explains reasons.
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What is the best evidence to support a claim that one design works better?
What is the best evidence to support a claim that one design works better?
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Recorded test data (numbers or observations) from the same test. Numerical data provides objective proof of performance differences.
Recorded test data (numbers or observations) from the same test. Numerical data provides objective proof of performance differences.
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Which option is the correct claim if Design A holds $12$ coins and Design B holds $9$ coins?
Which option is the correct claim if Design A holds $12$ coins and Design B holds $9$ coins?
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Design A performs better. More coins means better performance for a coin-holding goal.
Design A performs better. More coins means better performance for a coin-holding goal.
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Which option is the correct claim if Design A travels $3$ m and Design B travels $5$ m in the same push test?
Which option is the correct claim if Design A travels $3$ m and Design B travels $5$ m in the same push test?
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Design B performs better. Greater distance indicates better performance for a travel goal.
Design B performs better. Greater distance indicates better performance for a travel goal.
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Which design performs better if the goal is the longest time and A lasts $40$ s while B lasts $35$ s?
Which design performs better if the goal is the longest time and A lasts $40$ s while B lasts $35$ s?
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Design A performs better. Longer duration wins when the goal is maximum time.
Design A performs better. Longer duration wins when the goal is maximum time.
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Which design performs better if the goal is the shortest time and A takes $18$ s while B takes $22$ s?
Which design performs better if the goal is the shortest time and A takes $18$ s while B takes $22$ s?
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Design A performs better. Less time is better when speed is the goal.
Design A performs better. Less time is better when speed is the goal.
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Identify the correct reason: A travels $5$ m and B travels $3$ m; why is A better for distance?
Identify the correct reason: A travels $5$ m and B travels $3$ m; why is A better for distance?
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It travels farther ($5$ m is greater than $3$ m). Compares distances to show A's superior performance.
It travels farther ($5$ m is greater than $3$ m). Compares distances to show A's superior performance.
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Which design performs better if the goal is the strongest bridge and A holds $10$ blocks while B holds $10$ blocks?
Which design performs better if the goal is the strongest bridge and A holds $10$ blocks while B holds $10$ blocks?
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Neither; they perform the same in this test. Equal results mean neither design outperforms the other.
Neither; they perform the same in this test. Equal results mean neither design outperforms the other.
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