Unit 1.1 The Solar System

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

• The inner planets are bigger than outer planters

• The inner planets are made of rock, the outer planets are made of gas

• Life is possible on inner planets but not outer planets

• The inner planets have satellites, the outer planets do not

True or False: A galaxy is a heavenly body, that is smaller than a star

• True

• False

A _________ consists of billions of stars held together by gravity.

True or False: The galaxy we are in is called the solar system

• True

• False

The galaxy that contains the solar system is called the _____________

Which is the largest planet in the solar system?

Which is the smallet planet in the solar system?

Saturn is a ......

• Galaxy

• Satellite

• Planet

• Dwarf Planet

Pluto is a ......

• Galaxy

• Satellite

• Planet

• Dwarf Planet

Ceres is a ......

• Galaxy

• Satellite

• Planet

• Dwarf Planet