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This week, Primary 7 started their new science topic: Substances and Chemical Reactions.

We started off by learning the difference between a chemical change and a physical change and applied these to real life scenarios such as:

melting chocolate = physical change
baking a cake = chemical change.

We then discussed the chemistry behind reactions including what is required to cause a reaction, how atoms change during a reaction and evidence that a reaction has occurred.

Following on from our learning, we conducted some practical experiments to showcase the difference between endothermic and exothermic reactions. 

For our exothermic reaction we made elephant's toothpaste and identified how different factors impacted the results of the reaction. 

What a fantastic first week back P7! Have a great weekend.