| A | B |
|---|
| canyon | a deep, narrow river valley with steep slopes |
| deposition (deposit) | how water or a glacier lays down earth materials |
| drought | a long period of dry weather |
| erosion | how earth materials are broken down and MOVED from place to place |
| glacier | a huge mass of ice that moves very slowly over land |
| ground water | water that has soaked into the soil |
| iceberg | a large piece of ice broken off a glacier and moved into the water |
| irrigation | how humans supply water to land by pipes |
| soil | the top layer of earth made of humus, sand, silt, clay, water and air |
| surface water | water that stays on the earth's surface (doesn't soak into the soil) |
| water cycle | how water moves through the ground, evaporates into the air (cloud), and then falls back to earth (rain or snow) |
| weathering | how earth materials are broken down by natural forces |
