Earth's Magnetism

What causes the Earth to act like a magnet?

• The movement of liquid iron and nickel in the Earth's outer core

• The presence of magnets on the Earth's surface

• The gravitational force of the Earth

• The heat generated by the Earth's core

What is the purpose of the Earth's magnetic field?

• To protect us from the sun's dangerous rays

• To attract magnets to the Earth's surface

• To create a force that repels animals

• To control the movement of birds

Which animals use the Earth's magnetic field to navigate?

• Mice, bats, sharks, and birds

• Cats, dogs, and rabbits

• Fish, turtles, and snakes

• Lions, tigers, and bears

What are the Earth's magnetic poles called?

• North Pole and South Pole

• East Pole and West Pole

• Up Pole and Down Pole

• Left Pole and Right Pole

How do magnets interact with each other?

• Opposite poles attract, similar poles repel

• Opposite poles repel, similar poles attract

• Both opposite and similar poles attract

• Both opposite and similar poles repel

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Which metals are magnetic?

• Nickel, iron, steel, and cobalt

• Gold, silver, and copper

• Aluminum, tin, and zinc

• Platinum, titanium, and mercury

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What is the process of making a magnet?

• Running metals through a magnetic field

• Exposing metals to sunlight

• Heating metals to a high temperature

• Freezing metals at a low temperature

What is the purpose of the magnetic field in magnets?

• To attract or repel other magnets

• To generate heat

• To create a visible force

• To emit harmful radiation

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What type of rock mineral can be magnetic?

• Magnetite

• Quartz

• Granite

• Limestone

What did people think about magnets in the past?

• They thought magnets were a kind of magic

• They thought magnets were made of gold

• They thought magnets were useless

• They thought magnets were dangerous