I always love the opportunity to share some of my favorite inexpensive science experiments.  One of our favorites at the Spangler Science offices is making your own “lava lamp.”  We take this one on the road, and it’s always a hit with teachers looking for unique, budget-friendly projects.  Just add take a Baby Soda Bottle test tube, a True Colors tablet and a little oil and water… now you have your own bubbling potion.  Just watch the video to find out how it works.

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