MATERIALS

Reuse:
4-12 each of 4 Mystery Samples
12 Bowls (6-8" at top)
12 Rubber Bands
12 Pieces of Plastic (food storage bags)
12 Small (tuna fish) Cans
12 Plastic Spoons
12 Small Cups (1-2 oz.)
12 Clear Plastic Glasses (8-12 oz.)
12 Stop Watches or a Clock with a Second Hand
24 Safety Goggles

Replace For Each Class:
12 Zip-Loc Sandwich Bags
70 Ice Cubes
Salt
Food Color
Vinegar
Baking Soda
100 Raisins
350 Gum Drops (see notes)
250 toothpicks
72 oz. Clear Soda