Goop

Materials

Cornstarch Tub

Water Food coloring

Instructions

1. This is fascinating for all ages. Pour a large amount of cornstarch into a dish tub. Add severalcups of water along with food coloring as you stir. The mixture is easier to mix with yourhands. You've added enough water when you pick up a handful of the mixture and it takesseveral seconds before it drips from your hands.

2. The Goop looks like it's wet, but when you pick up a handful, it feels dry. The heat from yourbody causes an endothermic reaction, which changes the "goop" to a liquid that dripsthrough your fingers.