In this week’s Crafts for Kids video, learn how to make a DIY Lava Lamp using household supplies! This activity is not only a feast for the eyes but also a terrific science experiment. As you make the lamp, talk to your kids about why the oil stays on top of the water. What does the word density mean? When parents drop the Alka-Selzer tablets into the water and oil mixture why do bubbles float to the surface? What are gases?