The zebra class (2nd & 3rd) investigated chemical reactions by making lava lamps. Before carrying out the experiment, they predicted what would happen. The first question was do oil and water mix and then what will happen when we add food colouring? They learned that oil and water don’t mix, that the food colouring dissolves in water and colours it. They learned that the Alka Selzer tablet causes a chemical reaction when it reacts with the water, producing carbon dioxide gas. The children really enjoyed the experiment which you can see from the photos.
