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I want to find out which ball causes the most bounces

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My hypothesis was supported by my experiment. The bouncy ball had the highest average bounces. During my experiment, the balls bounced on an uneven wood board, causing the ball to roll. In the future, I will make sure that the material that I bounce my ball on is smooth. It would be interesting to see how different materials on the same ball affect the way it bounces or the number of bounces that are caused.

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The bouncy ball had the highest average number of bounces. The stress ball and the tennis ball had about an equal average number of bounces.

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The height the balls are being dropped from.
The material the balls are being dropped onto.
The force used to drop the ball (none).

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The number of bounces.

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The type of ball.

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1. Use the ruler to measure twelve inches/one foot off the ground

2. Cut the tape

3. Use the tape to mark the twelve-inches-off-the-ground spot

4. Hold the bouncy ball up to the tape

5. Let go

6. Record number of bounces after the ball has started to roll

7. Repeat three times

8. Hold the stress ball up to the piece of tape

9. Let go

10. Record number of bounces after the ball has started to roll

11. Hold the tennis ball up to the tape

12.  Let go

13.  Record number of bounces after the ball has started to roll

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1 bouncy ball with a diameter of 1.5 inches

1 stress ball with a diameter of 2 inches

1 tennis ball with a diameter of 2.5 inches

1 twelve inch ruler

1 piece of tape

1 wall/table/chair/etc.

1 wood deck/porch

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education.com. “Bouncing Ball Physics: What Is Elasticity? | Science Project.” Education.com, 9 Sept. 2013, www.education.com/science-fair/article/ball-bounce-higher-dropped-greater-height/

elfloz. “Ball Bouncing in Slow Motion: Tennis Ball.” YouTube, YouTube, 14 Apr. 2013, www.youtube.com/watch?v=zd2V4_FNMls

elfloz. “Ball Bouncing in Slow Motion: Bouncy Ball.” YouTube, YouTube, 14 Apr. 2013, www.youtube.com/watch?v=tTt886y0rWI

Osborne, Mary. “Why Do Balls Bounce Differently?” LIVESTRONG.COM, Leaf Group, 13 June 2017, www.livestrong.com/article/147292-why-do-balls-bounce-differently/

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If the ball has a high amount of elasticity, then it will have a high number of bounces.

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Which ball causes the most bounces when dropped from a height of one foot?