Outer Space Vocabulary

Front

What is a massive ball of gas in outer space that gives off heat and light?

Back

A star.

Front

What is an object made of rock and ice that orbits around the Sun and appears to have a tail when heated?

Back

A comet.

Front

What is the motion of one object around another one called?

Back

Revolution.

Front

What do we call a rocky body that revolves around a planet?

Back

A moon.

Front

What is the closest star to Earth and the giant ball of gas in the center of our solar system?

Back

The sun.

Front

What is the term for a group of stars, gas, and dust held together by gravity?

Back

Galaxy.

Front

What is the name of the planets that are closest to the Sun?

Back

Inner planets.

Front

What do we call the large celestial bodies that orbit the Sun and are not classified as planets?

Back

Dwarf planets.

Front

What is the term for the spinning motion of an object around its own axis?

Back

Rotation.

Front

What is a small rocky body that orbits the Sun, primarily found in the asteroid belt?

Back

Asteroid.