Lava Lamps

  • Supplies
  • Leftover water bottles or 2 liter soda bottle
  • Vegetable Oil
  • Food Coloring
  • 1 tablet alka seltzer antacid tab
  • Directions
  • Fill bottle 1/3 with water
  • Add vegetable oil until it is almost full (leave 1-2 TBS of space)
  • Add several drops of food coloring
  • Add 1 alka seltzer antacid tab, broken up into several pieaces
  • Watch the lava!