Today, I decided to do of the science projects with Sweetpea. The first was "Exploding Color." Pour evaporated milk into a bowl, place four drops of food coloring in the middle of the bowl.
Touch the center with a qtip that has been dipped in Dawn dish detergent. I let Sweetpea have the honors.
The next experiment was "Dancing Raisins"
Fill a glass jar half way with water and mix 3 TBSP of baking soda into it. Stir. Pour in vinegar until the mix bubbles over. (Wish I had gotten a picture of that!) Put a few raisins in the mixture.
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Sweetpea looking at the first floating raisin. |
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| After a couple of hours all of the raisins were floating. |
Question: what exactly were these experiments demonstrating? They look like a lot of fun, but I wanna know why, please? For example, what was the significance of soaking the q-tip in dish soap? I'm dying to know.
ReplyDeleteThe lady didn't say why the dish soap made the food coloring move that way, but it was so fun that I decided to do it anyways. The vinegar and baking soda made carbon dioxide which made the raisins float. I have a few more fun things I want to do. Dino eggs are coming :)
ReplyDeleteThis is cool :) Aunt Deb
ReplyDelete