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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 24 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.Two equal pushes from opposite sides leave a box still. What should you write down?
  • A.The box was too heavy
  • B.The forces were balanced, so the box did not move
  • C.There were no forces
2.You want to test whether two pushes move a box further than one. What do you change?
  • A.The floor
  • B.The number of pushes
  • C.The box
3.You test pushing a box from one side, then from both sides at once. What are you testing?
  • A.What color works best
  • B.How the direction of the forces changes the motion
  • C.How heavy the box is
4.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 carpet slowed the car more than the tile
  • C.The floors made no difference
5.Before testing, a student says the car will roll furthest on tile. What is that?
  • A.A result
  • B.A prediction to check against the results
  • C.A rule that is always true
6.You want to know whether carpet slows a toy car more than tile. What must stay the same?
  • A.Nothing at all
  • B.The car, the ramp and the height it starts from
  • C.The floor it rolls onto
7.Why roll the car three times on each floor?
  • A.One roll might be unusual, so the results are checked
  • B.To wear out the car
  • C.Because three is a lucky number
8.What makes a forces test unfair?
  • A.Writing down the results
  • B.Changing the push and the floor at the same time
  • C.Repeating the test

LessonPrint · 3-PS2-1 · Set 24 · free to copy for classroom use

Answer key — Testing a Push Fairly

Set 24. Prints on its own sheet.

  1. 1.The forces were balanced, so the box did not move
  2. 2.The number of pushes
  3. 3.How the direction of the forces changes the motion
  4. 4.The carpet slowed the car more than the tile
  5. 5.A prediction to check against the results
  6. 6.The car, the ramp and the height it starts from
  7. 7.One roll might be unusual, so the results are checked
  8. 8.Changing the push and the floor at the same time

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