Scientists: Kyle Drew, Konstantin Tishkov, and Andrea Mack

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ScientistsKyle Drew, Konstantin Tishkov,
and Andrea Mack
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Our groups hypothesis
Question

• Does the drop height effect how high a rubber
  ball bounces?

• We think that the higher you drop a ball the
  higher it will bounce in the air.

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Materials for this experiment

• Measuring tool (2 meter sticks)

One rubber bouncy ball
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Procedure Step 1

• First set up your measuring tool by taping it to
  a wall. This way you do not have to hold it up
  by hand.

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Procedure Step 2

• Hold the ball
• so that the bottom of the ball is 15 inches from
  the ground.

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Procedure Step 3

• Drop the ball from that height by releasing it.
• Do not throw it or add force.

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Procedure Step 4

• Measure and record the distance the ball bounces
  up in the air.
• You should measure the distance from the ground
  to the bottom of the ball.

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Procedure Step 5

• Repeat these steps 2 more times and average your
  results.

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Procedure Step 6

• Repeat these steps by dropping the ball from 30,
  45, 60, and 75 inches and record on your chart.

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Variables

• Variable changed drop height
• Variable Measured distance the ball bounces up
  in the air
• Variables kept the same (controlled)
• release the ball
• measure to the bottom of the ball

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What did we find?
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Conclusion

• Based on the results of this experiment, we found
  that as drop height increases, so does the bounce
  height. We also found that when dropped, a ball
  bounces up about 80 of the distance.

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We should be chosen to be on the Youth Science
Team because