the experiments

We had our Fifth Homeschool Science Fair a couple of weeks ago, and I’d like to share the experiments Lucas and Siena did.

Lucas’s experiment this year:

  • Question: How long can you stay in the air when you jump?
  • Hypothesis: I thought I could jump higher with both feet together.

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So Lucas timed (with a special equipment) all four of us in the family, and 3 other friends.  We all jumped with both feet.  With the left foot.  And with the right foot only.

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He timed us, making great calculations (practicing lots of math!) and made a bar graph.

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Conclusions:

  1. Jumping with both is better.
  2. Boys and girls jump the same.
  3. Left leg jumping is harder.

Now, Siena’s experiment: 

  • Question: Do muscles work better when they are cold or warm?
  • Hypothesis: The warmer muscles are the better they work.

DSC_0001-small DSC_0038-smallSiena tested the hand muscles.  She tested her hypothesis by doing as many grips we could in 10 seconds.  She tested in normal (warm) muscles.

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She also tested our performance after putting our hands in ice water for 15 seconds.

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And then we did it with our really warmed up muscles.  We all tested it, and 4 of her friends.

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She recorded the number of grips we each did in the same amount of time.  She then made a graph to show the results.

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  • Conclusions:
  1. Right hands are better.
  2. Hot muscles are better.
  3. Older is better than younger (people.)

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And made the poster as well to share all of this information at the fair.

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Learned few things and had fun.  Perfect!

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