So another great project for kids. This one is called a lava lamp...same technique. Fill water bottle with oil, food coloring, and water. Is this not cool or what? Kids can add gems, little fish, or anything to make it personal.
Make a Lava Lamp Science Experiment by Jamie Reimer Make a lava lamp with your preschooler, and your preschooler will love science experiments! I can’t promise that, but Henry has. Lava lamps are simple to make, too.
Blobs in a Bottle (The World's Easiest Lava Lamp) by sciencebob: Here is all you need: A clean 1 liter clear soda bottle 3/4 cup of water Vegetable Oil Fizzing tablets (such as Alka Seltzer) Food coloring #Kids #Science #Blobs_in_a_Bottle #sciencebob