Chapter 9

Orbits the Earth

• Sun
• Moon
• Earth
• Moon and Sun

Rocky Planets

• Inner Planets
• Outer Planets

Gas Giants

• Inner Planets
• Outer Planets

Inner Planets

• Venus, Jupiter, Earth, Mars
• Mercury, Venus, Earth, Uranus
• Mercury, Venus, Earth, Mars
• Jupiter, Saturn, Uranus, Neptune

Outer Planets

• Saturn, Uranus, Earth, Mars
• Jupiter, Saturn, Uranus, Neptune
• Earth, Jupiter, Uranus, Neptune
• Mars, Jupiter, Uranus, Neptune

The two planets closet to Earth are...

• Mars and Venus

• Mars and Jupiter

• Mars and the Moon

• Venus and Mercury

The largest planet is...

• Jupiter
• Mars
• Mercury
• the Sun

The apparent changes in the moon's shape are the moon's...

• craters
• phases
• orbits
• seasons

There are days and nights because...

• the Sun rotates.
• the Moon rotates.
• Earth rotates.
• the Moon revolves around the Sun.

What causes seasons on Earth?

• revolution around the Sun
• tilt on the axis
• orbit of the Sun
• Sun's revolution