Solar System

Earth and the other planets closest to the Sun are made mostly of _______

• gas

• metal

• water

• rock

The moon is a natural ______ of Earth.

• comet

• axis

• satellite

• piece

One full orbit of an object around another object is called a ________.

• axis

• rotation

• revolution

• satellite

The __________ has planets, moons, comets, and asteroids.

• solar system

• earth

• rotation

• celestial space

One of the main differences between the outer and inner planets is __________.

• The inner planets all have water
• the inner planets are much bigger than the outer planets
• the outer planets are gas planets
• the outer planets have rings, and the inner planets don't

Where is the asteroid belt found?

• between earth and mars
• Between Uranus and Neptune
• Between Mercury and Venus
• Between Mars and Jupiter

Select the order from smallest to largest.

• Sun, Milky Way, solar system, universe
• Sun, Milky Way, universe, solar system
• Sun, solar system, Milky Way, universe
• Sun, solar system, universe, Milky Way

Which outer planets have rings?

• Just Saturn
• Saturn and Jupiter
• Jupiter, Neptune, and Saturn
• all 4 of them

a pattern of stars that form an imaginary picture or design in the sky

• Orbit

• Rotate

• constellation

• Milky Way

Which is the sixth planet from the sun?

• Earth
• Uranus
• Saturn
• Neptune