Posted by on Jan 20, 2013 in Science Activities | 1 comment

DIY Lava Lamps

These lava lamps make for a retro and SUPER easy science experiment. This is all you need to make them at home:

DIY Lava LampsJar of water, 1/3 cup vegetable oil, kosher salt, food colouring

Fill a jar with water, then add a few drops of food colouring:

DIY Lava LampsDIY Lava Lamps

Add 1/3 of a cup of vegetable oil to each jar

DIY Lava Lamps

Then add some salt and watch what happens!

DIY Lava Lamps
DIY Lava Lamps
The oil and salt form globules that sink to the bottom of the jar. As the salt dissolves, the oil floats back up to the surface.

This is something we will definitely be trying again!