Electricity and the Magnet: teacher key

Magnets, grade 6 edition, written for 6th grade. The link between electricity and magnets, and how Earth is a magnet that moves.

Read the book. Print this page for the key.

Questions and answers

What did Ørsted's discovery show in 1820?
- That electricity and magnetism are related (answer)
- That Earth is flat
- That compasses are old
What can a changing magnetic field near a conductor create?
- Wind
- An electric current (answer)
- A new pole
What is a magnetic field?
- The area around a magnet where its force can be felt (answer)
- A kind of stone
- A wire
Where does Earth's magnetic field begin?
- In the Moon
- In its poles
- In its core (answer)
Why must navigation be adjusted for regularly?
- Compasses get tired
- Earth's magnetic north pole is moving (answer)
- The Sun gets brighter