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Question
A student claims that Earth has a magnetic field. Which evidence would best support the student's claim?
Responses
The student turns in all directions with a compass and the needle always points north.
The student turns in all directions with a compass and the needle always points north.
The student rolls a ball down a large hill and the ball comes to a complete stop at the bottom.
The student rolls a ball down a large hill and the ball comes to a complete stop at the bottom.
The student receives a shock after walking across the carpet and touching a doorknob.
The student receives a shock after walking across the carpet and touching a doorknob.
The student creates a working circuit that illuminates a bulb using wire and a battery.
The student creates a working circuit that illuminates a bulb using wire and a battery.
1 answer
The best evidence to support the student's claim that Earth has a magnetic field is:
The student turns in all directions with a compass and the needle always points north.
This is because a compass works by aligning itself with the Earth's magnetic field, which is why the needle points towards the magnetic north. The other options do not provide direct evidence of Earth’s magnetic field.
