|
____ has almost no atmosphere. Mars has a very thin one.
|
1. Mercury
|
|
Due to iron oxide (rust) on its surface, ____ appears red.
|
2. Venus
|
|
Titan is the largest of the 146 known moons orbiting ____.
|
3. Earth
|
|
____ is slightly smaller than Earth.
|
4. Mars
|
|
The Great Red Spot on ____ is a massive persistent windstorm.
|
5. Jupiter
|
|
Uranus and ____ appear blue due to methane in their atmospheres.
|
6. Saturn
|
|
____ was the first planet discovered using a telescope (1781).
|
7. Uranus
|
|
About 71% of ____ is covered by water.
|
8. Neptune
|
