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Grade 2 Science Review: Electricity
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What is more powerful: Cells or mains electricity?
Mains electricity
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Tell me 1 thing this uses a buzzer.
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Why is the girl safe in this picture?
She is safe because the toaster is not plugged in!
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Cells or mains?
Cells!
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What is this called?
A power station
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Tell me 2 things that electricity can do!
Make things move, heat or cool something, make light, make sound
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What is this called?
Battery / Cell
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Is this dangerous?
Yes!
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Does a flashlight use mains electricity?
No!
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How does a switch stop electricity?
It makes a gap in the circuit!
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Tell me 3 things that use electricity
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Is this safe?
No
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What can happen if you put something metal into a wall socket?
You can get an electric shock!
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What are these called?
They are wires!
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Does this fan use a cell or mains electricity?
It uses mains electricity!
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Can the remote work if you put the cells inside like this?
No!
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Why is this safe?
It is safe because the cord is unplugged.
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What it this called?
It's a switch!
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Does electricity move in the metal or plastic part of the wire?
The metal part!
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What is this called?
It's a circuit!
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Will the bulb turn on?
No, the circuit is not complete.
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Is this cord safe to use?
No, it isn't!
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