Space

The moon is a natural  ______ of Earth.

• comet
• axis
• satellite
• space probe

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

• axis
• rotation
• revolution
• satellite

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

Besides changing the distance between objects how else can we change the force of gravity?

• Change their atmosphere
• Change their rotation
• Change their mass
• Change their volume

Which is the largest object in our solar system?

• Sun
• Jupiter
• Earth
• Pluto

A small object that appears as a streak of light as it enters earth's atmosphere.

• Asteroid
• Comet
• Moon
• Meteor

The inner planets are:

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

The GAS GIANTS or Outer planets are:

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

Why do the sun and moon appear to move across the sky?

• the rotation of the solar system makes the sun and moon seem to move
• the rotation of the earth make the sun and moon seem to move
• the sun and moon revolve around earth
• the earth revolves around the sun and moon

Why does the moon appear to shine?

• It is like a star and gives off light
• it refracts light from space
• It reflects light from the sun
• It absorbs light from the sun