Earth's Magnetic Field 7A

Magnetic field lines are closet together at the __________.

• poles
• lines

Tags

NGSS.MS-PS2-3

A(n) __________ is a device that has a magnetized needle that can spin freely.

• Compass
• Magnetic Field

Why is a compass needle attracted to the North?

• There wind in the north

• Because it is being attracted to the Magnetic South Pole

• Because there iron in the north

• It repeals from the north pole

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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

Many animals use Earth's magnetic field to guide them where to to travel and migrate.

• true

• false

• only humans use it to travel

• scientists cannot determine this

The area around the planet Earth where the magnetic field is in is called ___________________

• ionosphere

• magnetosphere

• stratosphere

• solarsphere

What’s the most important function of Earth’s magnetic field?

• Earth's magnetic shield deflects asteroids and meteors

• Earth's magnetic shield keeps energy from escaping into space

• Earth's magnetic shield deflects most of the solar wind

• Earth's magnetic shield helps birds and other animals navigate

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

The motion of liquid _______ in the Earth's core creates a magnetic field.

• Iron
• Magnesium

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5