Chapter 11 Questions:
4. What are the seasons like on Jupiter? Jupiter has a minor tilt(only 3 degrees) so it does not
experience drastic changes over time. Therefore, Jupiter does not experience seasons at all.
6. Describe the seasons on the planet Uranus. On the other hand, Uranus experiences drastic
changes in seasons because of its 98-degree tilt. Each pole has a 21-year sunlit summer and a
21-year dark winter.
10. What is the primary source of Jupiter’s internal heat? Primordial heat(or internal heat gained
from planet formation) is the primary source of Jupiter’s internal heat. Jupiter also gains internal heat
from the Sun, causing it to emit large amounts of thermal radiation.
11. Describe the interior heat source of Saturn. Differentiation in the mantle of Saturn generates
large amounts of internal heat. Helium sinks into the mantle while the less dense hydrogen floats.
When helium sinks, it releases gravitational energy, therefore heating the interior.