The Planets in Our Solar System (Vocab) by Franklyn M. Branley

Front

What is the solar system?

Back

The solar system is a group of celestial bodies, including the Sun, planets, moons, asteroids, and comets, that are bound by gravity.

Front

How many planets are in our solar system?

Back

There are eight planets in our solar system.

Front

What is a planet?

Back

A planet is a large celestial body that orbits a star and does not produce its own light.

Front

What is the closest planet to the Sun?

Back

Mercury is the closest planet to the Sun.

Front

What is the largest planet in our solar system?

Back

Jupiter is the largest planet in our solar system.

Front

What is Earth?

Back

Earth is the third planet from the Sun and the only known planet to support life.

Front

What is a telescope?

Back

A telescope is an instrument that helps us see distant objects, like stars and planets, more clearly.

Front

What is a moon?

Back

A moon is a natural satellite that orbits a planet.

Front

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

Back

The Sun is the main source of light and heat for the solar system.

Front

What is an asteroid?

Back

An asteroid is a small rocky body that orbits the Sun, mostly found in the asteroid belt between Mars and Jupiter.