Rapid, Rainbow, Bounce
Question:
What material is causing a cemical reaction and making the bouncy ball form?
Hypothesis:
We think the material causing the bounce ball to form is the glue.
Our Experiment
Borax Bouncy Balls
Materials:
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Procedure:Label the plastic cups. Write "ball" on one cup and "borax" on the other cup. Combine 1/2 teaspoon borax with 2 tablespoons warm water in the borax cup and stir it well to dissolve the borax. Add one drop of food coloring at a time, stirring after each addition, until the mixture's shade suits you. Pour 1 tablespoon glue into the "ball" cup. Add 1/2 teaspoon of the borax mixture to the glue but do not stir the mixture. Add 1 tablespoon of the cornstarch and do not stir. The ingredients will now begin to combine with each other without mixing them. Wait 10 to 15 seconds and then stir the mixture constantly until it thickens to the point that you can no longer stir it. |
Special Needs: Room with carpet
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Scoop the stiffened mixture out of the cup with a spoon and begin kneading it with your hands. Shape the mixture into a ball as you are kneading it. The mixture will be messy and sticky initially, but it will begin to solidify with handling and exposure to air. Once it's no longer sticky, it's ready to bounce.
Wash your hands, work area and all the utensils with warm soapy water. Store the bouncy ball in a sealed plastic bag at room temperature when you are not using it.
TIPS
Wash your hands, work area and all the utensils with warm soapy water. Store the bouncy ball in a sealed plastic bag at room temperature when you are not using it.
TIPS
- Using white glue will make the ball opaque. To make a translucent ball, use clear school glue.
- Adding extra glue will produce a slimier ball. If you want a ball that can bend and stretch, use more cornstarch. Experiment with different amounts of cornstarch, borax and glue to produce bouncy balls with varying properties.
The Science behind it
Whats happening is
Bouncy balls rebound in response to the amount of force used when they contact hard surfaces. That simply means that a bouncy ball will bounce back at you with about 80 percent of the energy you used when you threw it and bounced it off of something rigid.
Bouncy balls rebound in response to the amount of force used when they contact hard surfaces. That simply means that a bouncy ball will bounce back at you with about 80 percent of the energy you used when you threw it and bounced it off of something rigid.
Conclusions
AilbheAilbhe plays soccer, and basketball. She loves cats and especially jaguars! Ailbhe loves science. Ailbhe also loves swimming.
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IsabellaIsabella loves science. Her favorite thing to in the whole wide word is sports. She plays soccer, basketball, and lacrosse.
She also loves dogs and skiing!!!!!! 
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Lindsey
Lindsey likes to play soccer and she does mixed martial arts.She also enjoys skiing and her pet Hippie (he's a bunny).
She likes snowboardimg. 
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Ailbhe, Lindsey, and Isabella are all on the same basketball and soccer team.
