How to Use a Compass

And The Earth's Magnetic Field

How Earth's Magnetic Field Affects Compasses

Earth's Magnetic Field has a North Pole and a South Pole, just like a bar magnet. The North Pole is naturally magnetized so the needle on the compass will always point north. The needle in a compass is also magnetized.
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What is a Compass?

A compass is a tool that can help you tell what direction you are going.

How to Use a Compass

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Earth's Magnetic Field

The outer core and the inner core spin. The outer core spins faster than the inner core, this is how Earth's Magnetic Field was created. Earth's Magnetic Field comes out of the South Pole and goes in the North Pole. Earth's Magnetic Field forms a circle around the Earth.
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Parts of a Compass

  1. Scales
  2. Base Plate
  3. Direction of Travel Arrow
  4. Magnifier
  5. Index Pointer
  6. Dial
  7. Declination Marks
  8. Orienting Arrow
  9. Orienting Lines
  10. Needle
  11. Housing
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How Compass works -Magnetism Lesson for Kids