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| has the biggest particles does not hold water well and warms and dries out quickly. |
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| has lots of clay particles and small air pores. Holds water and drains water poorly. |
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| The type of soil that is best for drainage is sandy and the best type for growing crops is |
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Definition
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| consists of sand, silt and clay. It is considered to be the perfect soil. It holds water easily and drains well. |
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Definition
| is a non-renewable resource. |
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Term
| Soil is comprised of a mixture of |
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Definition
| rock particles (minerals), decomposed organic materials, minerals, air, and water. |
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Term
| A soil horizon is a layer of soil with properties that |
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Definition
| differ from those of the layer above and below it. |
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Term
| Soil is extremely valuable. It is responsible for all of the food that people eat. Soil is considered to be a |
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Definition
| non-renewable resource because if we do not use good farming technique, we will run out of topsoil. |
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Term
| Although weathered rock is the basic component of soil, the composition and texture of soil and its fertility and resistance to erosion are greatly influenced by |
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Definition
| plants and other organisms. |
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Term
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Definition
| Decomposing plant and animal material in soil |
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Definition
Sandy Soil – has the biggest particles does not hold water well and warms and dries out quickly.
Clay Soil – has lots of clay particles and small air pores. Holds water and drains water poorly.
Loam Soil - consists of sand, silt and clay. It is considered to be the perfect soil. It holds water easily and drains well. |
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| soil that is best for drainage is |
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Definition
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| the best type of soil for growing crops is |
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Definition
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Definition
water,
provides nutrients for plants,
and provides homes for animals. |
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Term
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Definition
| is the process that breaks down rock and other substances at Earth’s surface. |
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Term
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Definition
| is the breaking apart of rock. |
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Term
| The two main types of weathering are |
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Definition
| mechanical, and chemical. |
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Term
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Definition
| breaking down rocks by physical force. |
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Term
| Mechanical weathering includes |
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Definition
ice wedging,
exfoliation,
and organisms breaking down rocks. |
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Term
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Definition
| the breakdown of rocks by chemical reactions that change the rocks makeup or composition. |
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Term
| Chemical weathering includes |
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Definition
| dissolution (soluble rocks and minerals dissolve in acidic waters), hydrolysis (feldspars alter to clay), and oxidation (rusting of iron). |
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Term
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Definition
| the chemical weathering that refers to a chemical change to a substance when it interacts with water. |
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Term
| what is the main cause of chemical weathering |
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Definition
|
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Term
| why is the dirt on Mars is red |
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Definition
| because of rust and oxidation. This is an example of chemical weathering. |
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Term
| Acid rain causes rocks to weather |
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Definition
| much faster than they would naturally. |
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Term
| Weathering and erosion are |
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Definition
| two very different processes that tend to act sequentially. |
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Term
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Definition
| is the movement of rock particles. |
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Definition
| transports weathered rock material. |
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Term
| Water, wind and ice are agents of |
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Definition
|
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Term
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Definition
| the agents (forces) of erosion lay down sediment. |
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Term
| Dirt from mountain tops can be carried downhill to fill in valleys. This is called |
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Definition
|
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Term
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Definition
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Term
| What are the three major ways in which erosion moved sediment? |
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Definition
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Term
| Weathering and erosion wear down, and |
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Definition
| deposition fills in Earth’s surface. |
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Term
| The agent of erosion that carries the largest rocks is |
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Definition
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Term
| Rivers can carve a valley through rock with a river flowing through it while a glacier can carve a valley where only rocks remain. When the glacier retreats or melts it leaves behind a valley |
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Definition
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Term
| Wind, water, and gravity all combine to move dirt around. Of the three, water is responsible for |
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Definition
| moving the most amount of soil. |
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Term
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Definition
| increase and decrease erosion. |
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Term
| Human activities, such as reducing forest cover and intensive farming, have |
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Definition
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Term
| One simple way to keep soil healthy is to ensure that the soil is never bare. That means keeping plants in dirt for |
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Definition
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Term
| Humans can increase erosion through |
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Definition
| poor farming practices or disturbing the land through development. |
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Term
| Man-made structures along the coastline often have the unwanted side effect of |
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Definition
| enhancing coastal erosion. |
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Term
| Man-made structures are sometimes built to |
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Definition
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Term
| Construction on steep slopes can lead to mass wasting(erosion by gravity), including |
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Definition
|
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Term
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Definition
| desertification, nutrient depletion of soil, and mass wasting can occur |
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Term
| Mass movement and mass wasting is the downhill movement of large amounts of surface material caused by |
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Definition
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Term
| Examples of mass movement and mass wasting are |
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Definition
| creep, rock falls, avalanches, mudslides, mudflow, and rock slides. |
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Term
| Creep is a very slow mass movement that |
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Definition
| goes on for years or even centuries. |
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Term
| You can't see creep happening but leaning fences and poles and broken retaining walls show where it has taken place. Creep is the |
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Definition
| slowest type of mass movement. |
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Term
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Definition
| is a layer of soil with properties that differ from those of the layer above and below it |
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Term
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Definition
| the part of the erosion process in which sediment is placed in a new location |
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Term
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Definition
the process in which weathered particles are picked up and moved from one place to another
soil horizon – a layer of soil with properties that differ from those of the layers above or below it |
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Term
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Definition
| weathering – the breaking down and loosening of rock near the surface of the earth |
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Term
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Definition
| breaking down rocks by physical force |
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Term
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Definition
| the downhill movement of masses of rock and soil |
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Term
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Definition
| fast movement of rock and soil |
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Term
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Definition
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Term
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Definition
| decomposed/dead plant and animal material in soil |
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Term
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Definition
| any natural resource in limited supply and cannot be replaced if it is used up; examples - oil and coal |
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Term
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Definition
| any resource that can or will be replenished naturally in the course of time; examples – solar and wind. |
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Definition
| made from living matter or related to living matter |
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Term
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Definition
| the breakdown of rocks by chemical reactions that change the rocks makeup or composition |
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