Earth's Geomagnetism

Our planet is surrounded by a huge magnetic field that reaches from Earth’s ______all the way into _____.

• core

  surface

• space

  surface

• core

  space

• middle

  outside

Compasses align with the Earth's____________.

• core

• magnetic field

• surface

• latitude

To help visualize magnetic forces, scientists model them using _________.

• magnetic field lines

• compasses

• rocks

• simulations

In a model of a single magnet, lines are drawn looping outward between opposite __________.

• force fields

• directions

• magnetic poles

• angles

These field lines help predict the direction of the forces _____ or _______ different magnets

• attracting

  distracting

• pushing

  shoving

• ripping

  tearing

• pulling

  pushing

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-3

A model showing two magnets that are not connected to each other by field lines indicates that the magnets will _____each other

• attract

• love

• repel

• hate

Tags

NGSS.MS-PS2-5

The Earth's magnetic north pole is located...

• at the south pole

• at the north pole

• in France

• above the Earth in space

Each geomagnetic pole ________the opposite pole of the compass at the same time it _______ the like pole of the compass.

• repels

  attracts

• attracts

  repels

• loves

  hates

• attracts

  attracts

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-3

Each end of a compass needle is attracted by the magnetic force of one of Earth’s magnetic poles and repelled by the other. Since the needle is attached to the compass in the middle and can’t go anywhere, it ....

• points south.

• points north.

• breaks.

• spins in a circle.

Tags

NGSS.MS-PS2-5

How are some animals able to determine direction without a compass?

• they use GPS

• they have small bits of metal in their bodies to act like a compass.

• their eyes have a special function like a compass.

• they are really smart