Lava Lamp

Have you ever wanted to create your own lava lamp? According to “Science Guy” Jason Lindsey with Hooked on Science you can, and all you need are a few supplies and ingredients from the kitchen.

 Ingredients

Plastic bottle with cap

Vegetable oil

Water

Food coloring

Alka-Seltzer tablet

Instructions

STEP 1: Fill the plastic bottle three quarters of the way with vegetable oil.

STEP 2: Fill the plastic bottle the rest of the way with water.

STEP 3: Place several drops of food coloring into the plastic bottle.

STEP 4: Break the Alka-Seltzer tablet into two pieces.

STEP 5: Place each of the pieces of Alka-Seltzer tablet into the bottle.

Explanation

This experiment proves water and oil don’t mix. The carbon dioxide gas created when you dropped the pieces of Alka-Seltzer tablets into the mixture causes the colored water blobs to push to the top through the oil.

— hookedonscience.org