Solar System Review - Unit 3 HMH

When asteroids orbit the sun, they come very close to it.

When comets orbit the sun, they come very close to it.

A planet is described as large and with a thick atmosphere. Which planet does this sound like?

Which planets have few moons?

A group of solar systems that are held together by gravity is called a(n) __________.

A chunk of rock or iron that orbits the sun is called a(n) __________.

Which is the main difference between the inner and outer planets?

Together, a star and all of the planets and other objects that orbit it form a ________.

Planets orbiting a star is called a(n) _______.

What kinds of objects make up most of the visible matter in a galaxy?

Inner planets' density is greater than 4 grams per cm. Outer planets' density is around 1 gram per cm. Which is true?

How would our Milky Way galaxy be described?

Larger stars are brighter.

Which planets have a rocky surface?

Which planets have a gaseous surface?

Small stars are hotter than larger stars.

Why do stars appear small when looking through a telescope?

Which planets are large?