What is one of the primary functions of Earth's magnetic field?

Earth's Magnetic Field Concepts

Interactive Video
•
Science, Geography, Physics
•
6th - 7th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To support plant growth
To provide gravity
To protect against space radiation
To regulate climate
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can Earth's magnetic field be visualized?
As a spinning top
As a giant bar magnet
As a flat disk
As a pyramid
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Approximately how often has Earth's magnetic field reversed in the past 20 million years?
Every 200,000 to 300,000 years
Every 500,000 years
Every 100,000 years
Every 50,000 years
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What recent discovery has been made about Earth's magnetic field?
It has stopped reversing
It is moving towards the equator
It is weakening at a faster rate than previously thought
It is strengthening rapidly
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a potential risk of a weakening magnetic field?
Global warming
Increased earthquakes
Disruption of power grids and communication systems
Increased volcanic activity
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which animals might be affected by changes in the magnetic field?
Dolphins
Elephants
Pigeons
Lions
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What generates Earth's magnetic field?
The rotation of the Earth
The motion of molten iron in the outer core
The gravitational pull of the moon
The Earth's atmosphere
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