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

What is the shape of the planets?

• A square

• Triangular

• Spherical

• A circle

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

What moves in an elliptical orbit around Earth?

• The moon

• The Sun

• Asteroids

• Other planets

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 planets in orbit around the Sun?

• Nothing

• Force and motion

• Friction

• Gravity and inertia

What keeps you on Earth?

• Gravity

• Inertia

• Friction

• Magnetism