Make a homemade Lava Lamp experiment

An original Mathmos lava lamp, model "Astro", as it was sold during the 1990s

Lava lamps were immensely popular in the 1970’s. For some reason, your parents thought it was very fun to sit there and watch colorful liquid in a bottle swirl aimlessly around. They probably even chanted “Oh wow, the colors, the colors.

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