We conducted our own science demonstrations in the class. The tea bag rockets worked really well. The air inside the teabag became heated and caused the tea bag to float up into the air. It worked just like a little hot air balloon.
The oil and water in the lava lamp don't mix. All you need to aid is food colouring and alka seltza tablets to get the blobs.
Click here to find out how to make a homemade lava lamp
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