Bouncy Balls - Online

When you mixed the borax and the glue, the chemical reaction formed long chain molecules called polymers. Store-bought bouncy balls are made of rubber, another material that is made up of polymers. When the bouncy ball is stretched, these polymer chains uncoil and straighten. When released, the chains coil back up again. This makes the material stretchy and bouncy. When your ball bounces, it is squishing when it hits the ground, then un-squishing as it bounces back up. This program is intended for ages 5-13.