When I was a kid, I had a lava lamp that I absolutely loved. I kept it right next to my bed, and I loved watching the weird red globs of mystery goo float around as I fell asleep. I never really cared too much about how it worked, I just knew that I loved it. As a science teacher, it's important to always relate your material to something the students are interested in. This video demonstrates how to make a trippy homemade lava lamp of your own, and could be used as an introductory demonstration to have students make their own lamps. Being able to give my students a fun way of learning about density and a cool project to work on and take home with them seems like a win-win situation to me.
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