Homemade Bouncy Balls

My boys LOVE those bouncy balls that they get in goodie bags.  We have a million of them around our house (OK, maybe not a million, but they are always around somewhere around the house).  My littlest one loves crawling after them.

I’ve seen a lot of posts about making your own so we decided to try it.  Almost the same ingredients that we used to make GAK.

Here’s what you need to get started:

  • Two containers for mixing (we used a plastic cup and an old yogurt container)
  • Borax
  • Food coloring
  • Cornstarch
  • Glue
  • Warm water
  • Measuring cup
  • Measuring spoon
  • Spoon for mixing

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Add 1 Tbsp of cornstarch and 1/2 tsp borax to the cup.

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Add 1/4 cup warm water to the cornstarch/borax mixture.  Mix well.

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Add 1 Tbsp of liquid glue to a small container.  Add some food coloring to it if you’d like.  My superheroes always add color because, hey, colors make everything more fun!  Mix well with a spoon.  It will be sticky.

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Slowly add the cornstarch/borax/water mix to the glue. Mix until a blob forms.

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When it gets too hard to mix and the “blob” is no longer holding any more liquid, take it into your hands and roll it between your palms until is gets firm and circular.

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The superheroes compared it to a real bouncy ball they already had at home.

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They had fun bouncing it around and comparing the real bouncy ball to the one we made.

I will admit, it definitely does not bounce as well as the real ball and after a few bounces, it did flatten out a bit.  We just rolled it back up between our palms and it was round again and ready to play.  We will need to tweak this recipe to see if we can get it be a bit more bouncy.  But the boys had fun with it all the same.

The Science behind the Activity:

Follow this link to see where I got the idea from and more details about the experiment: http://www.pbs.org/parents/crafts-for-kids/super-bouncy-balls/

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