I think I saw this one on Pinterest and just had to try it with my girls. We also had a friend over too, which explains the other older child.
This is our homemade lava lamp experiment. This is basically just water, oil, food coloring, and Alka-Seltzer. There are several learning moments to be explored with this one. First there is the concept of density. Water and oil do not mix. Secondly, you can use the food coloring to mix colors. And then there is the reaction between the Alka-Seltzer and water that makes the bubbles. We loved doing this and still have them sitting around to use again!
Here Caitlyn is adding red to the blue because she wanted purple. This one is made with baby oil.
Dropping in the Alka-Seltzer tablet.
The reaction sends bubbles of colored water up through the oil before it floats back down.
She wanted to see them on the light box! This one is made with veggie oil.
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| Meow :) |
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