Year 4 have been learning all about changing states as part of their Science topic on The Water Cycle. We have talked about how materials can be solids, liquids and gases and how we need to heat up or cool down the material to change its state. To put that into practise, we looked at chocolate today! We took solid chocolate and added heat to change the state into a liquid. But what to do with a lot of melted chocolate? Dunk marshmallows and fruit of course!