Name:     ID: 
 
Email: 

Inner Planets

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

How are the inner planets different from the outer planets?
a.
the inner planets are larger
c.
the inner planets have more moons
b.
the inner planets are rocky and smaller
d.
the inner planets are mostly gas
 

 2. 

What is an astronomical unit?
a.
it is used to measure the distance between the stars
c.
the distance between the Sun and Pluto
b.
the distance between the Earth and the Moon
d.
the distance between the Earth and the Sun
 

 3. 

What contains over 99% of the mass of the solar system?
a.
the Sun
c.
the eight planets
b.
the asteroid belt
d.
the nine planets
 

 4. 

Name the four inner planets.
a.
Earth, Moon, Mars, Venus
c.
Mercury, Earth, Venus, Jupiter
b.
Mercury, Venus, Earth, Mars
d.
Mars, Jupiter, Saturn, Earth
 

 5. 

Which is the largest of the Inner Planets?
a.
Mercury
c.
Earth
b.
Venus
d.
Mars
 

 6. 

Which inner planet is almost the same size as Earth?
a.
Mercury
c.
Mars
b.
Venus
d.
the Moon
 

 7. 

Which inner planets have moons?
a.
only the Earth
c.
Venus and the Earth
b.
Mercury and Venus
d.
Earth and Mars
 

 8. 

Which of the planets is the densest?
a.
Earth
c.
Saturn
b.
Mars
d.
Merciry
 

 9. 

Which planet is the hottest?
a.
Mercury
c.
Earth
b.
Venus
d.
Mars
 

 10. 

Which planet has a dense atmosphere of hot, poisonous gases?
a.
Mercy
c.
Earth
b.
Venus
d.
Mars
 

 11. 

Which planet is called the Red Planet?
a.
Mercury
c.
Earth
b.
Venus
d.
Mars
 

 12. 

Which planet has the shortest orbital period?
a.
Mercury
c.
Earth
b.
Venus
d.
Mars
 

 13. 

What are the terrestrial planets?
a.
the planets outside of the asteroid belt
c.
the planets that have moons
b.
the rocky, smaller planets close to the Sun
d.
Mercury, Pluto, Venus, and Saturn
 

 14. 

Which planet has almost the same amount of land as the Earth?
a.
Mars
c.
Jupiter
b.
Venus
d.
the Moon
 

 15. 

What is the one thing that Earth has that no other planet has?
a.
an atmosphere
c.
liquid water
b.
a solid surface
d.
a Moon
 



 
         Start Over