Earth's Seasons

What causes the cycle of day and night on Earth?

• Earth's rotation on its axis

• The Sun moving across the sky

• Earth's revolution around the Sun

• The tilt of Earth's axis

How long does it take for Earth to complete one rotation on its axis?

• 24 hours

• 12 hours

• 365 days

• 30 days

Why do shadows change throughout the day?

• Because Earth is rotating

• Because the Sun moves closer and farther

• Because of Earth's revolution

• Because of the tilt of Earth's axis

What is the angle of Earth's axis tilt?

• 23.5 degrees

• 45 degrees

• 90 degrees

• 0 degrees

When it is summer in the Northern Hemisphere, what season is it in the Southern Hemisphere?

• Winter

• Summer

• Spring

• Autumn