| A | B |
|---|
| terrestrial planets | The four small inner planets taht have rocky surfaces. |
| retrograde rotation | Venus rotating from east to west. |
| Mercury | Planet that has the greatest difference of temperature. |
| greenhouse effect | Trapping of heat by an atmosphere. |
| gas giants | first four outer planets that are much larger than Earth and do not have solid surfaces. |
| Great Red Spot | A giant storm many times bigger than Earth located in Jupiter's atmosphere. |
| Saturn | Second largest planet. |
| Pluto | Has a solid surface and has a mass much less than that of Earth. |
