Rolling buddies By Abby, Danny, Saul, and Stella

Testable question

Does changing the kind of ball affect the distance when it rolls?

Hypothesis

If we use a big ball, it will roll faster.

Materials

Chair

Wood plank

Bouncy ball

Basketball

Soccer ball

Tennis ball

Measuring tape

Procedure

1. Set up the ramp using chair and wood plank.

2. Place soccer ball on top of the ramp

3. Let the ball roll down until it stops

4. Measure the distance from the bottom of the ramp until where the ball stopped

5. Record the data

6. Repeat 2, 3, 4, and 5 with Bouncy ball

7. Repeat steps 2, 3, 4, and 5 with Tennis ball

8. Repeat steps 2, 3, 4, and 5 with Basketball

Data collection test #1

Bouncy ball - 414 inches

Soccer ball - 580 inches

Tennis ball - 351 inches

Basketball - 1,109 inches

Data collection test #2

Bouncy ball - 409 inches

Soccer ball - 631 inches

Tennis ball - 376 inches

Basketball - 1,063 inches

Variable

Different kinds of balls

Constant

Same ramp and same ground

Conclusion

Our project was rolling balls down a ramp. Based on testing, we found that our hypothesis was correct because our hypothesis was the biggest ball would roll faster and the basketball was the biggest. And went the farthest.

Credits:

Created with images by seefit - "Coloured Balls"

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