Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chapter 2 vocabulary
Vocabulary
| Term | Definition |
|---|---|
| Uniformitarianism | The principle that states the geologic processes that operate today and the past. |
| Erosion | Is the process of wearing down and carrying away rocks. |
| Weathering | Is the process that breaks down rock and other substances. |
| Mechanical Weathering | The type of weathering in which rock is physically broken into smaller pieces. |
| Chemical Weathering | Is the process that breaks down rock though chemical changes. |
| Abrasion | Refers to the wearing away of rock by rock particles carried away by water, ice, wind, or gravity. |
| Frost Wedging | Wedges of ice in rocks widen and deepen cracks. |
| Oxidation | Iron combines with oxygen in the presence of water. |
| Permeable | Means that material is full of tiny, connected air spaces that allow water to seep through it. |
| Soil | Is the loose weathered material on Earth's surface in which plants can grow. |
| BedRock | Is the solid layer of rock beneath the soil. |
| Humus | Decayed organic material in the soil. |
| Fertility | Is a measure of how well the soil supports plant growth. |
| Loam | Soil that is made up of about equal parts of clay, sand, and slit. |
| pH Scale | Measures acidity. |
| Soil Horizon | Is a layer of soil that differs in color, texture, and composition from the layers above or below it. |
| Topsoil | A crumply, dark brown soil that is a mixture of humus, clay, and other minerals. |
| Subsoil | Usually consists of clay and other particles of rock, but little humus. |
| Decomposers | Are the organisms that break the remains of dead organisms into smaller pieces and digest them with chemicals. |
| Natural Resources | Is anything in the environment that humans use. |
| Soil Conservation | Is the management of soil to limit its destruction. |
| Crop Rotation | A farmer plants different crops in each field each year. |
| Contour Plowing | Farmers plow their fields along the curves of a slope instead of in straight rows. |
| Conservation Plowing | Dead weeds and stalks of the previous year's crop are plowed into the ground to help return soil, nutrients, retain moisture , and hold soil in place. |
| Erosion | The process by which natural forces move weathered rock and soil from one place to another. |
| Sediment | The process of erosion moves materials. |
| Deposition | Occurs where the agents of erosion deposit, or lay down, sediment. |
| Gravity | Is the force that pulls you and your bike downward. |
| Mass Movement | Landslides, mudflows, slumps, and creep. |
| Runoff | As water moves over the land, |
| Rills | Tiny grooves in the soil that carries water. |
| Gully | Is a large groove or channel in the soil that carries runoff after a rain storm. |
| Stream | Is a channel along which water is continually flowing down a slope. |
| Tributary | Is a stream or river that flows into a larger river. |
| Flood Plain | Flat, long area of land along a river. |
| Meander | Is a loop-like bend in the course of a river. |
| Oxbow Lake | Is a meander that has been cut off by the river. |
| Alluvial Fan | Is a wide, sloping deposit of sediment formed where a stream leaves a mountain range. |
| `Delta | Sediment deposited where a river flows into an ocean or lake builds up a landform. |
| Groundwater | Is the term that geologists use for this this underground water. |
| Stalactite | A deposit that hangs like an icicle from the roof of a cave. |
| Stalagmite | Slow dripping builds up a cone-shaped ______ from the cave floor. |
| Karst Topography | If the roof of a cave collapses because of the erosion of the underlying lime stone, the result is a depression called a sink-hole |
| Glacier | Any large mass of ice. |
| Continental Glacier | Is a glacier that covers much of a continent or large island. |
| Ice Age | M |
Created by:
Kye Yoshi
Popular Science sets