Download Facts about Planets Answer Key File

Facts About the Planets
Use the information you gathered to answer the following fill-in-the-blank questions.
1. _____Mercury___________ atmosphere is so thin that it is barely detectable.
2. Mercury is only _____0.38 x________ the diameter of the Earth.
3. Venus rotates in a ______Retrograde (backward)_________ direction.
4. Mars is sometimes referred to as the _______Red_________ planet.
5. Venus has a thick atmosphere of ___________Carbon Dioxide__________.
6. Jupiter has _______at least 67_______ moons.
7. ______Mars_________ is the seventh largest planet.
8. Saturn has _____9_________ rings.
9. The diameter of Earth is _____7,926________ miles.
10. Neptune has rings around it, until 1989 these rings were thought to be ______incomplete arcs___.
11. List the four biggest moons of Jupiter.
Lo, Europa, Ganymede, Callisto
12. Uranus has only been visited by one spacecraft. What was the name of the spacecraft and when
did it visit the planet?
Voyager 2, January 10 1986
13. Put the planets in order starting with the closest to the sun.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune