Dry Ice Bomb

Ingredients:

   * 3-4 small chunks of dry ice.
   * 2-liter bottle (or equivalent).
   * 8 oz. water.

Procedure:

   * Fill the 2-liter bottle with approximately 8 oz. of water.
   * Drop the small pieces of dry ice into the 2-liter bottle.
   * Seal the bottle.
   * In approximately 2 minutes the bottle will create a huge explosion.