Remember back in the day when lava lamps were popular? Well here’s how you can re-create that fun for the kids in a water bottle.
- Water Bottle
- Food Coloring
- Vegetable Oil
- Alka Seltzer
Fill each bottle about 3/4 full of vegetable oil. Fill the rest of the bottle with water…but leave about an inch at the top…or it will overflow. Break your Alka Seltzer into tiny pieces and drop them in one piece at a time.