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SCIENCE WEEK 2022 Ms.Harding’s Class

Lava lamps

Today we made lava lamps.

We used oil,water, food colouring and effervescent tablets.

First we made a mixture with oil and water.

As oil is less dense than water, they don’t mix.

We added food colouring. It coloured the water but not the oil.

Finally we popped in an effervescent tablet which reacted with the water causing coloured bubbles to rise from the water through the oil. This created a lava lamp effect.

Watch our video to see how we got on!

 

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