What is the center of our solar system?

• The Sun

• The Moon

• The Earth

• Mars

How many planets are there in our solar system?

• Eight

• Seven

• Six

• Nine

What shape do the planets' orbits resemble?

• Circle

• Ellipse

• Triangle

• Square

Which of the following is a gas giant?

• Mercury

• Jupiter

• Mars

• Earth

What is the term for the movement of a planet around the Sun?

• Spinning

• Orbiting

• Revolution

• Rotation

How long does it take for the Earth to complete one rotation?

• 12 hours

• 24 hours

• 28 days

• 365 days

What is the name of the rocky bodies that orbit planets?

• Moons

• Comets

• Stars

• Asteroids

What is the average time it takes for the Moon to revolve around the Earth?

• 14 days

• 28 days

• 30 days

• 365 days

What causes night and day on Earth?

• The Earth's rotation

• The Earth's revolution

• The Moon's rotation

• The Sun's movement

What is the term for the imaginary line through the center of a planet?

• Diameter

• Radius

• Orbit

• Axis