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food colouring posts

A simple siphon Activity

by David, 6 September 2018 | 0 comments

Three cups of blue liquid, connected by straws. The liquid is darkest in the left cup and palest in the right cup.

Do you have a few leftover plastic cups and straws that you want to keep from turning into waste? Save them up and make a cascading waterfall!

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Lava fizz Activity

by David, 12 July 2018 | 2 comments

Lava lamps look super cool, but they can be expensive and hard to find. With this activity, you can make your own bubbly lava and learn a bit about oil and water!

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