Earth rotates on its axis once every 24 hours.

What is the result of Earth’s rotation?

• the seasons

• night and day

• the moon's phases

• a year

Earth is tilted on its axis.

Which of these would not exist if Earth had no tilt?

• seasons

• gravity

• lunar phases

• Earth's rotation

Earth revolves around the sun.

How long does it take for Earth to complete one revolution?

• one day

• one week

• one month

• one year

A pattern of starts that form an imaginary picture of design in the sky:

• seasons

• axis

• constellation

• orbit

At which position does the Northern Hemisphere receive the least amount of sunlight each day?

• Position I

• Position II

• Position III

• Position IV

The picture below shows one of the phases of the moon.

Which phase does the picture show?

• first quarter

• full moon

• third quarter

• new moon

Which set of pictures shows the correct order of moon phases?

• 
• 
• 
• 

Why do we only see one side of the moon?

• The moon’s rotation and orbit around Earth take the same amount of time.

• The moon does not rotate as Earth does

• Half the moon faces the sun.

• Earth blocks part of the sunlight that would shine on the moon’s surface

Earth revolves around the sun.

What object does the moon revolve around as it goes through its phases?

• its axis

• the Earth

• the sun

• its equator

The picture above shows a phase of the moon.

Which phase does the picture show?

• first quarter

• full moon

• new moon

• third quarter