We did the Magic Milk experiment and the Rainbow Skittles experiment. I've done both of them before but it was cool to go over them again. When you're doing the milk experiment, you put drops of food colouring in a plate (or bowl) of full-fat milk then dip a q-tip with washing-up liquid on it into the plate and watch the colours swirl! Mom told all the kids about how this was demonstrating surface tension of liquids and the properties of surfactants. Very educational!
The Skittles experiment is quite a bit simpler. You put different colour skittles into a plate of water and let them dissolve. In the end it looks very cool as the skittles dissolve and the colous spread out. At first the colours don't mix together so you can clearly see where one colour ends and the other begins. This taught us all about Diffusion in liquids. Diffusion is the movement of molecules from a stronger solution (the food colouring) to a weaker solution (the water).
Rainbow Skittles |
You might be wondering what the "Nerf Guns" meant in the title. Today, I went to my first session of Lynnsport in King's Lynn and it was Nerf Gun wars! I thought I'd be terrible at it because I get out of breath quite easily, plus I'm not very good at dodging, but I did really well!
Mom says I am very competitive! |
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