Surface Processes Test
Below is a listing of some topics you can expect to see on this week's test.
Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away.
The rate at which weathering occurs is dependent on rock, mineral, and climate types. Different rock and mineral types weather at different rates. Objects broken into pieces have a great surface area. Therefore, the smaller the size the faster it weathering.
Erosion is the geological process in which earthen materials are worn away and transported by natural forces such as wind or water. A similar process, weathering, breaks down or dissolves rock, but does not involve movement.
Rocks break down into smaller pieces through weathering. Rocks and sediment grinding against each other wear away surfaces. This type of weathering is called abrasion, and it happens as wind and water rush over rocks. Rocks get smaller and rounder over time.
Soil is a mixture of minerals, dead and living organisms (organic materials), air, and water. These four ingredients react with one another in amazing ways, making soil one of our planet's most dynamic and important natural resources. Soil is used by people in many ways. The top layer A generally has the most biologic activity occurring. Different climates cause different soils. Dark color is caused by weathering and biologic activity.
Deposition is the laying down of sediment carried by wind, flowing water, the sea or ice. Sediment can be transported as pebbles, sand and mud, or as salts dissolved in water. Salts may later be deposited by organic activity (e.g. as sea shells) or by evaporation. Occurs when an agent of slows down and drops off sediment.
Sample Questions
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Review Games
Below are some review games that can help you prepare for the exam.
Physical and Chemical Weathering