| A | B |
|---|
| mountain | a place on Earth's surface that is much higher than the land around it |
| landform | the natural shape of the Earth's surface |
| valley | a low area between higher landforms |
| canyon | a deep valley with steep sides that have been carved by forces of nature |
| glacier | a huge block of moving ice |
| earthquake | the shaking of Earth's surface |
| volcano | an opening on Earth's surface from which lava flows |
| flood | a large amount of water that can be destructive |
| fresh water | water that has very little salt in it |
| groundwater | the underground supply of water |
| condensation | The process where gas turns into a liquid(you see it on your mirror when you shower |
| evaporation | liquid water gains thermal energy and turns into water vapor |
| precipitation | rain, snow, sleet, or hail fall to Earth |
| water cycle | water evaporates into water vapor, rises and condenses into clouds and falls as precipitation |
| atmosphere | air around Earth |
