Chapter 8 Survey of the Solar System

How old do scientists believe our solar system is?

• 4.5 Billion Years

• 4.5 Million Years

• 4.5 Thousand Years

• 4.5 Hundred Years

The planets form which 2 main families

• Rocky / Gas

• Big / Small

• Earthlike / Non-Earthlike

• Young / Old

What is at the center of our solar system?

• The Sun

• The Earth

• The Moon

• A Black Hole

The Sun is a Planet

• True

• False

Which direction do all of the planets travel around the Sun?

• Counter-Clockwise

• Clockwise

Which direction do most of the planets rotate?

• Counter-Clockwise

• Clockwise

Which planet rotates clockwise? (retrograde motion)

• Venus

• Earth

• Mars

• Jupiter

Which planet rotates on its side?

• Uranus

• Neptune

• Mercury

• Saturn

The inner planets are known as:

• Terrestrial

• Jovian

Pluto is considered a dwarf planet

• True

• False