Unit 2 Solar System Review

Asteroids are made up of ______________________ and _____________________.

Dwarf planets are not like other planets because they _____________

Most galaxies are what shape?

The outer planets are made up of _____________.

The sun is a ________________.

Earth has __________________ moon.

We live in the Milky Way Galaxy. The shape of this galaxy is __________.

If you study astronomy, you are studying ____.

Meteoroids are ___________

What causes galaxies to collide?

Galaxies contain dust, gas, stars, and other objects. They are held together by _______.

Stars are formed when ____.

Comets orbit the ______________ and are found in the outer edge of the solar system.

Meteors are often called __________.

The inner planets are made up of _________________________.

Stars are grouped by _____, brightness, size, and temperature.

The universe is made up of everything that _____.

The inner planets are much _________________ than the outer planets.

In our solar system, Earth, the other planets, and other objects revolve around the _________

Red stars are the hottest stars.