| A | B |
|---|
| Oort Cloud | Evidence suggests that comets originate in the ____ located beyond the orbit of Pluto. |
| Greenhouse Effect | Solar energy trapped by gasses in Venus's atmosphere causes the ____. |
| Water | ____ is found as a solid, liquid, and gas on Earth. |
| Isotherms | Lines on a weather map that connect points of equal temperature are ____. |
| Cumulonimbus Clouds | Many times tornadoes are formed by ____ clouds. |
| Strong | Closely spread isobar lines on a weather map mean the winds will be ____. |
| Rising | When fair weather is comming into an area the air pressure will be ____. |
| Hardness | The resistance of a mineral to be scratched is called ____. |
| Marble | The common metamorphic rock formed from limestone is ____. |
| Nitrogen | The most abundant gas in Earth's atmosphere is ____. |
| March 21st | The Spring Equinox in the northern hemisphere occurs on ____. |
