A. Multiple Choice- Choose the letter that best answers the question or statement.(1pt each)

1. Which direction does Venus rotate? a.west to east b. east to west c. north to south d. south to north

2. How does the planet Uranus spin? a. west to east b. east to west c. north to south d. south to north

3. The greenhouse effect traps heat beneath the atmosphere of Venus because of which gas?

a. carbon monoxide b. nitrogen c. carbon dioxide d. helium

4. Which trait do all of the inner planets have in common?

a. large and more massive than the sun b. thick atmospheres of hydrogen and helium

c. have rocky surfaces d. have many moons

5. This planet is bluish because of the methane that makes up its atmosphere.

a. Uranus b. Venus c. Jupiter d. Neptune

6. Which planet has seasons like Earth? a. Venus b. Mars c. Mercury d. Uranus

7. Which is more similar to the inner planets than the outer planets?

a. Uranus b. Pluto c. Neptune d. Jupiter

8. This planet has no true atmosphere. a. Saturn b. Mercury c. Mars d. Earth

B.Planet Facts- For the planets below, write down all of the facts that fit each planet. Some facts may be used more than once for the different planets and other facts may not be used at all. (3 pts each)

9. VENUS- evening star, inner planet, retrograde rotation, carbon dioxide

10. JUPITER-great red spot, has moons, gas giant, largest planet

11. URANUS- has moons, gas giant, methane

12. EARTH- 70% water, visible clouds, inner planet, nitrogen, has moon,

Facts- 70% water Great Red Spot Retrograde Rotation Carbon Dioxide

Visible clouds planet of extremes Nitrogen Methane

“red planet” “evening star” has moon(s) largest planet

Smallest planet inner planet gas giant thin atmosphere

C.True or False. (2pts each) Write ‘true’ or ‘false’; then correct the underlined word.

13. Venus experiences an intense greenhouse effect. True

14. The outer planets are small, rocky planets. False; inner

15. Saturn’s density is so low that the entire planet would float in water. True

16. Mercury has two moons: Phobos and Deimos. False; Mars

D. Matching- Match each planet with the correct description.(2pts each)

_____17. Mars B a. has the nickname “Earth’s Twin”

_____18. Retrograde rotation G b. red planet

_____19. Outer Planets C c. all have ring systems

_____20. Venus A d. has a dark, stormy feature on it

_____21. Terrestrial E e. means “earth-like”

_____22. Inner Planets F f. Small, rocky bodies in the solar system

_____23. Neptune D g. backwards spinning

E. Diagramming. Correctly label the objects for 24: A, B, C, D, E, F, G, and H.(1pt each)

24A.Mercury 24B.Venus 24C.Earth

24D.Mars 24E. Jupiter 24F. Saturn

24G. Uranus 24H. Neptune