Front

What is the solar system?

Back

The solar system is a collection of planets, moons, asteroids, comets, and other celestial bodies that orbit around the Sun.

Front

Name the four inner planets of the solar system.

Back

Mercury, Venus, Earth, Mars.

Front

What are the outer planets also known as?

Back

The outer planets are also known as gas giants.

Front

Which planet is closest to the Sun?

Back

Mercury.

Front

What is the largest planet in the solar system?

Back

Jupiter.

Front

What is an orbit?

Back

An orbit is the path that a celestial body takes as it moves around another body in space.

Front

How long does it take for Earth to orbit the Sun?

Back

It takes about 365 days for Earth to complete one orbit around the Sun.

Front

What is the main source of light and heat for the solar system?

Back

The Sun.

Front

What is a moon?

Back

A moon is a natural satellite that orbits a planet.

Front

Which planet is known as the Red Planet?

Back

Mars.