Bounce of Balls

By NaVonte Johnson

Purpose Statement:

The purpose of this experiment was to find out what surface affects the bounce of a basketball and a bouncy ball. I became interested in this experiment because I like playing basketball. The information gained from this experiment will help others learn more about how balls bounce on different surfaces.

Research:

The first known use of the word ball in English meant globular body. The word comes from Middle English bal. Ancient Greeks used the word ball for sphere. Germanic used the word ball for blown up or inflation.

A ball is not only appealing to people. Animals like playing with balls, too. Dogs like playing with tennis balls. Cats like playing with paper balls.

Hypothesis:

My hypothesis is hardwood floor will make the bounce of the basketball and bouncy ball the highest. I base my hypothesis on past experience.

Materials:

1 basketball

1 bouncy ball

3 different surfaces

1 yard stick


IV: The surface

DV: The height of the bounce of the balls

CV: The height the balls are dropped from, Same spot where the balls hit the ground

Procedures:


1. Grab a basketball and a bouncy ball

2. Bounce the basketball on cement

3. Measure the height of the bounce of the basketball and bouncy ball each bounce

4. Repeat #2 two times

5. Repeat #2 three times using the bouncy ball

6. Bounce the basketball on a dirtroad

7. Repeat #5 two times

8. Repeat #5 three times using a bouncy ball

9. Record your data

Observations Log/Data:

Results:

The original purpose of this experiment was to find out what surface affects the bounce of a basketball and a bouncy ball. The results of the experiment were …..

Conclusion:

My hypothesis was hardwood floor will make the bounce of the basketball and bouncy ball the highest. The results indicate that this hypothesis should be considered…..Based on the results of this experiment…. If I were to conduct this science fair project again I would...

Acknowledgements:

My Mom and Sister