Spaceship Earth Unit Quiz

Who set the first clock?

• Ancient Egyptians

• Ancient Greeks

• Ancient Chinese

• Ancient Romans

How can the Sun tell you the season?

• By its color

• By its position in the sky

• By its size

• By its temperature

Why do the stars change with the season?

• Because of Earth's rotation

• Because of Earth's orbit

• Because of the Sun's movement

• Because of the Moon's phases

Why does the moon change shape?

• Because of Earth's shadow

• Because of the Sun's light

• Because of the Moon's phases

• Because of the stars

How can the Sun help us explore other planets?

• By providing heat

• By providing dark

• By providing solar power

• By providing gravity

Why is gravity different on other planets?

• Because of their size

• Because of their distance from the Sun

• Because of their atmosphere

• Because of their shape

Could there be life on other planets?

• No, it's impossible

• Yes, if there is water

• Yes, if there is enough light from a star and habitable conditions

• No, only Earth can support life

What is the rotation of Earth?

• The spinning of Earth on its axis

• The movement of Earth around the Sun

• The tilting of Earth's axis

• The orbit of the Moon around Earth

How many hours does it take for Earth to complete one rotation?

• 12 hours

• 24 hours

• 48 hours

• 36 hours

What is the tilt of Earth's axis?

• 0 degrees

• 45 degrees

• 23.5 degrees

• 90 degrees