Celestial Object Unit 9 Exam Review

Front

What are the four inner planets?

Back

Mercury, Venus, Earth, Mars

Front

What is an asteroid?

Back

A rocky object that is not large enough to be classified as a planet and continuously orbits the Sun.

Front

What is the Oort Cloud?

Back

The portion of our solar system that is farthest from the Sun, creating a three-dimensional sphere around the solar system made of large chunks of ice.

Front

Which planet is the hottest?

Back

Venus

Front

What are inner planets also known as?

Back

Terrestrial planets.

Front

What are the characteristics of terrestrial planets?

Back

They are rocky, have solid surfaces, and are located closer to the Sun.

Front

What is the difference between inner and outer planets?

Back

Inner planets are rocky and terrestrial, while outer planets are gas giants.

Front

Name the outer planets of our solar system.

Back

Jupiter, Saturn, Uranus, Neptune.

Front

What is a comet?

Back

A celestial object made of ice and dust that, when close to the Sun, displays a visible atmosphere or tail.

Front

What is the Kuiper Belt?

Back

A region of the solar system beyond Neptune, filled with small icy bodies and dwarf planets.