Magnets — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. A compass has a tiny magnet that points to north.
The compass needle lines up with Earth and points northward.
2. The Earth itself acts like one giant magnet in space.
Earth has a magnet field that reaches all around the planet.
3. Earth has a North Pole and a South Pole.
Earth, like a bar magnet, has two poles at its top and bottom.
4. Hikers use a compass to find which way is north.
A compass shows direction by pointing its needle to the north.
5. The red end of a compass needle usually points north.
The red tip is the north-seeking pole of the compass magnet.
6. If you spin a compass, the needle goes back to pointing north.
Earth's magnet force pulls the needle back to north every time.
7. A compass works because Earth is a big magnet.
Earth's magnet pull turns the small needle inside a compass.
8. The needle inside a compass is made of metal.
Compass needles are iron so Earth's pull can turn them easily.
9. Standing on ice at the very top of Earth is near the North Pole.
The North Pole is the top point of Earth's giant magnet shape.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Compass needle
→ Tiny magnet that spins
Tiny magnet that spins
Earth
→ A very big magnet in space
A very big magnet in space
North Pole of Earth
→ Icy top of the planet
Icy top of the planet
South Pole of Earth
→ Icy bottom of the planet
Icy bottom of the planet
Earth is a giant magnet with poles, and a compass is a small magnet.