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Stack #4604299
| Question | Answer |
|---|---|
| Mercury | Closet to Sun, not the hottest so small it lacks gravity and atmosphere |
| Venus | Hottest planet , greenhouse effect, day is longer then a year rotation time is longer than its revelation, acid clouds |
| Earth | Only planet with life, moderate temperatures, protective atmosphere, liquid water |
| Mars | Largest know mountain Olympus Mons ,possible signs of life |
| Terrestrial planets | The four inner planets |
| Greenhouse effect | When a planets atmosphere traps solar energy and causes the temperature to increase |
| Jupiter | Largest planet. Galilean moons. Great Red Spot. |
| Saturn | Most complex ring system. Least dense planet it would float, Titan=largest moon |
| Uranus | Rotation axis is tilted 90 degrees so rotates like a bowling ball. |
| Neptune | Longest period of revolution.. swirling storms-windiest planet. |
| Gas giants | Jupiter Saturn Uranus Neptune nickname for the 4 outer planets |
| Galilean moons | 4 moons Galileo discovered around Jupiter. Lo, Europa, ganymede , Callisto |
| Dwarf planet | Pluto was the first . Same as a planet but not larger than the objects around it. Ceres in the asteroid belt |