Crispy Cakes - Changing States

This term the children have been learning about solids, liquids and gases.

I asked a challenge question: can a solid change into a liquid?

To prove that materials can change state, the children felt the solid chocolate.

Then Mrs Beecroft melted the chocolate on the hob and the children watched it melt and turn into a liquid.

Then they mixed it with Rice Crispies.

They predict that when the chocolate cools, it will turn into a solid again.