Astronomy

How many planets are there in the Solar System?

• Nine

• Fifteen

• Eight

• Eleven

What does Earth orbit around?

• Pluto

• The moon

• The Solar System

• The Sun

An orbit is...

• The spinning of the Earth

• The path that Earth follows around the Sun

• How long it takes the Earth to revolve around the Sun

• The path that the Sun follows around the Earth

One full orbit is called a...

• Axis

• Rotation

• Inertia

• Revolution

How long does Earth's revolution around the Sun take?

• 24 hours

• 365 days

• 10 years

• 30 minutes

How long does the Moon's revolution take?

• 365 days

• One month

• 10 years

• 30 minutes

What keeps you on Earth?

• Gravity

• Inertia

• Friction

• Magnetism

A student observed the Moon on a Tuesday evening. She drew a picture of its shape in her science notebook. Approximately how long will she have to wait before she can see the Moon the same shape and position again?

• 365 days

• 29 days

• 7 days

• 1 week

Day and night is caused by the -

• orbit of Earth around the Sun

• orbit of Earth around the Moon

• rotation of Earth on its axis.

• rotation of the Moon on its axis

Why do we see different phases of the Moon?

• The Moon follows the Sun around Earth.

• The Moon orbits around Earth.

• The Moon rotates around the Sun.

• The Moon changes shape each night.