The Lava Lamp Lab

The Lava Lamp Lab

An icon of 1960's design, lava lamps were once the ulimate in grooviness. The slow-moving blobs of luridly colored light mesmerized a generation and illuminated countless dorm rooms.The very first lava lamp was made by a British accountant who used an empty soda bottle filled with insoluble liquids and a light blub. You can make your own using an empty jar.

Here's how. 

Materials
Clear jar with a lid
Water
Vegetable oil
Salt
Glitter
Flashlight

Instructions

1) Fill the jar three-quarters full with water and one-quarter vegetable oil. Because oil weighs less than water, it floats on top, forming a thin layer of bubbles.

2)  Add a few drops of food coloring.

3) Sprinkle in some salt. It will sink to the bottom, dragging the oil bubbles down with it.  As the salt dissolves, it releases the bubbles and they rise to the top again.

4) Add some glitter, seal the jar, and give it a good shake. Move it up and down, end over end, and from side to side. Just like the salt, it moves to the bottom and back to the top again, only the glitter won’t dissolve so you can enjoy your lava lamp for weeks.

4 Light your lava lamp by shining a flashlight through the back or the bottom of the jar.  When the “lava” stops flowing, give the jar a shake to get things moving again.

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