Solar System Vocabulary (Unit 3)

Front

What is the force that holds things on the ground?

Back

Gravity is the force that attracts objects towards each other, keeping them grounded.

Front

What do we call the sun, Earth, and seven other planets?

Back

The Solar System is the collection of the sun and the celestial bodies that orbit it, including eight planets.

Front

What is the name of the star at the center of our solar system?

Back

The Sun is the star at the center of our solar system, providing light and heat to the planets.

Front

What is everything that exists in space called?

Back

The Universe refers to all of space, time, matter, and energy that exists.

Front

What is a small planet-like body that orbits Earth?

Back

The Moon is a natural satellite that orbits Earth.

Front

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

Back

A Galaxy is a massive system that contains stars, star clusters, and interstellar matter.

Front

What do we call the path that a planet takes around the sun?

Back

An Orbit is the curved path that an object follows as it revolves around another object in space.

Front

What is the term for the layer of gases surrounding a planet?

Back

The Atmosphere is the envelope of gases surrounding a celestial body, like Earth.

Front

What is the name of the fourth planet from the sun?

Back

Mars is the fourth planet from the sun, known for its reddish appearance.

Front

What do we call a celestial body that orbits a planet?

Back

A Moon is a natural satellite that orbits a planet.