(Source:  Easy Peasy All In One Homeschool)

What I love about this curriculum is that the science experiments require items that you most likely already have around the house.  For this one, all you need are some paper towel and/or toilet paper tubes (I always save these things for crafts and such), scissors, tape, a marble or small rubber ball, and a bowl or basket to catch the marble.

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1. Cut the cardboard tubes down the middle.

 

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2. Find an open wall to tape your tubes onto. My kids used the side of my file cabinet.

 

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3. Continue taping the cardboard tubes in a calculated path.
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4. Take a cute picture of your kids…LOL!
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5. Test your marble run.  After so many tries, the rubber ball rolled into the ball perfectly!

 

 

 

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