11-18: Solar System Flashcard

Front

What is an asteroid?

Back

An object that is found in the solar system, orbits the Sun, and is much smaller than a planet.

Front

What is a comet?

Back

An object made of rock, ice, dust, and gas that revolves around the Sun.

Front

Which planet is closest to the Sun?

Back

Mercury.

Front

What is the definition of the Sun?

Back

The star around which all the planets and their bodies orbit.

Front

What is a planet?

Back

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

Front

What is a galaxy?

Back

A massive system that contains stars, star systems, and other celestial bodies, held together by gravity.

Front

What is the difference between a comet and an asteroid?

Back

A comet is made of ice and dust, while an asteroid is primarily made of rock.

Front

What is the largest planet in our solar system?

Back

Jupiter.

Front

What is the role of gravity in the solar system?

Back

Gravity keeps planets in orbit around the Sun and moons in orbit around planets.

Front

What is a natural satellite?

Back

A celestial body that orbits a planet, like the Moon orbits Earth.