9.2 The Earth as a giant magnet [Must do]

Earth is like a giant magnet due to....

• its liquid iron core

• the wind patterns of Coriolis Effect

• the alignment of the continents

• solar particles moving through the atmosphere

Where is Earth's magnetic field strongest?

• Along the outside lines

• Along the inside lines on either side

• Where the lines are close together at the poles

• In the space outside of the lines

Magnetic Field lines....

• Go into the N side AND go into the S side

• Go out of the S side and into the N side

• Go out of the N side AND out of the S side

• Go out of the N side and into the S side

Why does a compass needle point north?

• The compass is a bar magnet
• Because north is up
• Because it's magic
• It lines up with the Earth's magnetic field

Magnetic NORTH is actually geographic _________

• SOUTH
• NORTH
• EAST
• WEST

A compass points toward the south pole of Earth's magnetic field, located near the Earth's geographical ________.

• north

• south

• east

• west

Ancient people discovered magnetic rocks called lodestone. What did they use them for?

• fires
• compasses
• sculptures
• weapons

What is our best evidence that Earth has a magnetic field?

• All things fall toward Earth's center
• A compass needle lines up with it
• Winds blow from east to west
• Earth's oceans all have currents

Where is Earth's magnetic field strongest?

• Along the outside lines

• Along the inside lines on either side

• Where the lines are close together at the poles

• In the space outside of the lines

A device that uses a free-moving magnetic needle to show direction is a:

• lodestone
• magnet
• compass
• magnetic field