Show:
Magnetic Poles
Earth
Magnet
Compass
Bill Nye
100
Two unlike poles (North/South) will....
attract
100
What is the center of Earth mostly made up of?
melted iron
100
Name one object that would be attracted to a magnet.
objects made of iron, nickel, or steel such as paperclips, nails, tacs, etc.
100
What is a device that uses a free-moving magnetic needle to show direction called?
compass
100

Inside the earth, magnetism comes from....

Minerals

200
Two like poles (South/South) will.....
repel
200

In a magnet, the electrons are in a .....

line

200
What is an object that pulls certain metals towards it?
magnet
200
What direction is the point of a compass always facing?
North
200

These produce electricity to make a magnet.

moving electrons

300
Where is the force of attraction strongest on a magnet?
at the poles
300

These are caused by the sun's magnetic field

Solar winds

300
Rubbing a pair of scissors onto a magnet will create what?
a temporary magnet
300
Is the north-seeking end of a compass a south pole or north pole?
south pole....because it is attracted to Earth's north pole
300

When you break a magnet.

You get 2 magnets.

400
What is the space around a magnet where the force of the magnet can act called?
magnetic field
400
How many sets of poles does Earth have?
Two, the geographic poles and the magnetic poles
400
What is a magnet that keeps its magnetism for a long time called?
permanent magnet
400
What are compasses used for?
direction
400

Solar winds glowing at the North Pole

Northern Lights

500
What causes objects to cluster around the poles of magnets?
The force of attraction is strongest at the poles.
500

Name of magnetic rock found on Earth.

Magnetite

500
To pull towards mean to...
attract
500
Why does a compass work?
Earth is surrounded by a magnetic field
500

Chips in a computer that are magnetic.

Microchips