Today Kaley showed us how a lava lamp works. She had oil in a jar and then she poured in some water which immediately dropped down to the bottom of the jar. Then she added some red food colouring and mixed it and finally she added in an Alka Seltzer tablet which started making the fat globules in the oil push up to the top and then spread out again making really interesting patterns. It was a cool experiment to watch - thank you Kayley.
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