4th Grade Social Sciences Unit 1 Planet Earth

The Equator divides the Earth into...

• North Pole and South Pole

• Northern Hemisphere and Southern Hemisphere

• Meridians and Parallels

A long time ago, people believed that the Earth was...

• a pyramid.

• flat.

• a square.

Rotation causes ...

• the seasons.

• the degrees.

• day and night.

The Earth has two movements called...

(a)  

Revolution is the movement of the Earth...

• around the Moon.

• on its own axis.

• around the Sun.

How long does it take the Earth to make a complete rotation?

• 365 days

• 365 days and 4 hours

• 24 days

• 24 hours

When the magma reaches the surface is called...

• volcano

• magma chamber

• lava

• vent

When the Earth´s surface shakes , it´s called a

• tsunami

• tornado

• earthquake

• avalanche

The seasons are caused by...

• the Earth´s axis.

• rotation.

• revolution.

What regulates the temperature on the Earth and provides us with oxygen?

• the Earth´s tilt

• the atmosphere

• the rotation

• the revolution