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Grade 3 Semester 2
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What are most changes to habitats caused by?
humans
What is the difference between battery and mains electricity? Give an example of each
Battery electricity comes from a cell (inside batteries), but mains electricity comes from the sockets (from wires) in your house.
What is this called and what does it do?
It's a switch. It allows us to turn a circuit on and off.
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