Solar and Earth Science

1. ____ clouds are low-hanging, broad, flat clouds that blanket the sky.
4. ____ are meteoroids that make it to the Earth's surface.
6. A ____ front occurs when a warm air mass overtakes a cold air mass.
8. A ____ front occurs when a cold air mass overtakes a warm air mass.
12. ____ are rocks formed by the sedimentation, or gradual depositing, of small bits of rock, clay, and other materials. (shale, sandstone, gypsum, dolomite, coal)
14. The ____ is the more movable mantle beneath the lithosphere.
15. The ____ is located above the stratosphere.
16. ____ clouds are thin, wispy clouds that occur much higher in the atmosphere.
18. The ____ is includes the crust and the rigid upper part of the mantle and consists of approximately 30 separate pieces called plates.
19. The ____ is above the troposphere and is where air is mostly horizontal. The ozone is also located in the top portion of this layer.

2. The ____ is located above the mesosphere.
3. The ____ is the lowest level of the atmosphere, where all the weather takes place.
5. A ____ front occurs when two air masses meet and neither is displaced.
7. ____ clouds are massive clouds that are puffy, like popcorn, with relatively flat bottoms and rounded tops.
9. ____ is the process of water evaporating into the atmosphere from the leaves of plants.
10. ____ are smaller fragments of asteroids and particles shed by comets.
11. ____ rocks are formed from the hardening of molten rock. (granite, pumice, basalt, obsidian)
13. ____ rocks form when existing rock material is altered through temperature, pressure, or chemical processes. (marble, slate, gneiss, quartzite)
17. ____ fall into the Earth's gravitational field and are known as "falling stars."