The Solar System

Front

What is the Solar System?

Back

A collection of eight planets and their moons that orbit the Sun, along with asteroids, comets, and meteoroids.

Front

How many planets are in our Solar System?

Back

There are eight planets.

Front

What is an orbit?

Back

The path that celestial bodies or satellites follow as they revolve around another body.

Front

What causes objects to orbit?

Back

The force of gravity.

Front

Which is larger, the Sun or the Earth?

Back

The Sun is much larger than the Earth.

Front

How big is the Sun compared to Earth?

Back

The Sun is about 1.3 million times as big as Earth.

Front

What is the diameter of the Sun?

Back

About 1.391 million kilometers.

Front

What is a star?

Back

A huge ball of burning gas that produces its own light.

Front

What is the closest star to Earth?

Back

The Sun.

Front

What is a moon?

Back

A body that orbits another body, not a star.