As part of our materials topic in science, Year 5 learnt about reversible and irreversible changes.
A reversible change is where you can turn a material back to how it started, for example melting chocolate in the sun and then cooling it back to a solid.
Irreversible changes happen when materials mix and make new materials, you can't turn them back to how they started, for example when baking a cake.
We shook double cream for 10 minutes to see what would happen. After 5 minutes we had made whipped cream, then a liquid and solid started to form after more shaking. We removed the liquid and cleaned the solid. We has made butter! This was an irreversible change.
It was very tasty!
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