Space

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

• gas
• metal
• water
• rock

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

• solar system
• earth
• rotation
• United States

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

Why does Earth have different seasons? 

• because of the distance between Earth and the sun 
• because of the speed of Earth as it rotates on its axis 
• because of the amount of light blocked by the moon on its axis 
• because of the tilt of Earth on its axis as it moves around the sun 

Which factor makes Earth different from all the other planets in the solar system in its ability to support life? 

• The Earth is exposed to rays from the sun. 
• The Earth has only one moon that orbits around it. 
• The Earth rotates in an elliptical orbit around the sun. 
• The Earth has a breathable atmosphere. 

Which color star has medium temperature?

• Bluish-White
• Yellow
• Reddish-Orange

Which of the following causes seasons?

• the earths tilt
• the earths rotation
• the earths revolution around the sun
• the earths size 

Which is the largest object in our solar system?

• Sun
• Jupiter
• Earth
• Pluto

Which planet is closest to the sun?

• Uranus
• Mercury
• Neptune
• Earth