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Investigating scientific changes

We are learning about what makes changes of state either reversible or irreversible. Whilst we know that melted chocolate can be cooled back into a solid, we aren't so sure that our 'change' was a reversible one! We clung to our chocolate buttons as tightly as possible while Mrs Allen read the Michael Rosen poem 'Chocolate' to us... the heat from our hands resulted in some interesting findings! Take a look.

The results of our chocolate experiment...