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Testing a Push Fairly is a free printable Grade 3 science worksheet on planning an investigation into how forces change motion, aligned to NGSS performance expectation 3-PS2-1. It prints 8 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 20 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Testing a Push Fairly

3-PS2-1

NameDate

Circle the best answer.

1.Why roll the car three times on each floor?
  • A.Because three is a lucky number
  • B.To wear out the car
  • C.One roll might be unusual, so the results are checked
2.Your results show the car rolled 90 cm on tile and 30 cm on carpet. What can you conclude?
  • A.The tile slowed the car more
  • B.The floors made no difference
  • C.The carpet slowed the car more than the tile
3.What should you measure to see how much each floor slowed the car?
  • A.How loud the car is
  • B.The color of the car
  • C.How far the car rolls before it stops
4.You test pushing a box from one side, then from both sides at once. What are you testing?
  • A.How heavy the box is
  • B.What color works best
  • C.How the direction of the forces changes the motion
5.You want to know if a bigger push makes a ball roll further. How should you push?
  • A.The same push every time
  • B.A small push, then a big push, on the same ball and floor
  • C.A big push on a ball and a small push on a box
6.What makes a forces test unfair?
  • A.Repeating the test
  • B.Changing the push and the floor at the same time
  • C.Writing down the results
7.Before testing, a student says the car will roll furthest on tile. What is that?
  • A.A prediction to check against the results
  • B.A rule that is always true
  • C.A result
8.You want to test whether two pushes move a box further than one. What do you change?
  • A.The number of pushes
  • B.The box
  • C.The floor

LessonPrint · 3-PS2-1 · Set 20 · free to copy for classroom use

Answer key — Testing a Push Fairly

Set 20. Prints on its own sheet.

  1. 1.One roll might be unusual, so the results are checked
  2. 2.The carpet slowed the car more than the tile
  3. 3.How far the car rolls before it stops
  4. 4.How the direction of the forces changes the motion
  5. 5.A small push, then a big push, on the same ball and floor
  6. 6.Changing the push and the floor at the same time
  7. 7.A prediction to check against the results
  8. 8.The number of pushes

Last reviewed 2026-09-05. Aligned to 3-PS2-1 of the Next Generation Science Standards.