Erupting Volcano Soda
Ingredients Cardboard Three 4-oz. plastic cups 1 teaspoon ARM & HAMMER™ Baking Soda Plaster of Paris ¼ cup vinegar Liquid dish soap Water Red food coloring Directions (ADULT SUPERVISION REQUIRED*): On a baking sheet (or other easily cleaned surface), shape cardboard into broad cone shape using a cup to form a “crater” on top of…