MEREDITH: WELCOME BACK. YOU KNOW WHEN YOU ARE BRUSHING YOUR TEETH AND THE TOOTHPASTE BECOMES REALLY FOAMY IN YOUR MOUTH? THAT’S BECAUSE OF A CHEMICAL REACTION AND IN THIS WEEK’S SCIENCE OF IT, WE ARE ...

GRAND RAPIDS — We will make elephant toothpaste in our science experiment and learn what a catalyst is and what it does in a decomposition reaction! Let’s get started and make some elephant toothpaste ...