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Magnets

Science - 3rd Grade EFL
by

Justin M Thibedeau

on 1 November 2013

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Transcript of Magnets

Magnets
Science Unit 2
A magnet is a piece of metal. It attracts and pulls things toward itself and holds them.
Which of these things might a magnet attract?
Magnet
wood
paper
metal
rubber
plastic
wood
wood
metal
metal
What do magnets attract?
Do magnets attract all metal things?
What is a magnet?
Magnets are made of metal. Magnets attract other metal things.
Magnets do not attract all kinds of metal.
Magnets attract iron, nickel, and cobalt.
steel
steel
What is magnetic force?
Earth is a giant magnet. It has two poles or ends, the North Pole and the South Pole.
Magnets can attract things without touching them. This is because magnets have a magnetic force. This force is invisible and can go through other things.
Look at the arrows at the poles.
Are they going the same way?
Poles that are the same will repel or push each other. Opposite poles will attract each other.
Are these poles the same or opposite?
Magnets also have two poles. The tiny pieces
of iron show the magnetic field.
Opposite
Same
North
South
Full transcript