Volcano reactions

December 10, 2019

Science Club enjoyed making fizzing volcanoes using the reaction between an acid (such as vinegar or lemon juice) and bicarbonate of soda… The reaction produces carbon dioxide gas which makes the mixture foam and froth. We set up mini-volcanoes and explored using different colourings in the liquid to produce interesting coloured lava, and investigated different […]

Changing liquids into solids

December 3, 2019

In Science Club, Group 3 found out how to change a liquid into a solid without chilling it or freezing it. We were exploring the strange properties of “Oobleck”, a mixture of cornflour and water. We discovered that when the mixture is pressed hard, it forms a solid But as soon as you let go, […]