How To Make A Lava lamp 
Lava Lamps are easy to make at home. No complicated parts or ingredients. Lava Lamps are cool, stylish, and funky. You can either go out and purchase one at a retail store or make one at home right now, using common items found in your household.

The lamp contains blobs of coloured wax inside a glass vessel filled with clear or translucent liquid; the wax rises and falls as its density changes due to heating from an incandescent light bulb underneath the vessel.