Rocks and Weathering
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Uniformitarianism | The geological principle that the same processes that operate today operated in the past to change the Earth's surface
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| Erosion | The process of wearing down and carrying away rocks.
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| Weathering | Is the process that breaks down rocks and other substances
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| Mechanical weathering | A type of weathering where rock is physically broken
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| chemical weathering | Is the process that breaks down rock through chemical changes
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| Abrasion | Wearing away rock by rock particles carried by water, ice, wind, and gravity
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| Frost wedging | Water freezes in rocks and expands then forces rocks apart
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| Oxidation | Iron combines with oxygen in the presents of water causing rust
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| permeable | A material that is full of tiny connected air spaces that allows water to seep through it
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| soil | The loose, weathered material on Earth's surface in which plants can grow
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| bedrock | Is the solid layer of rock beneath the soil
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| humus | Is a dark-colored substance that forms as plant and animal remains decay
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| fertility | Is a measure of how well the soil supports plant growth
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| loam | is the best soil for growing most plants
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| pH scale | measures acidity
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| soil horizon | Is a layer of soil that differs in color, texture, and composition from the layers above or below it
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| topsoil | A crumbly, dark brown soil that is a mixture of humans, clay, and other materials
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| subsoil | Usually consist of clay and other particles of rock, but little humus
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| decomposer | Are the organisms that break the remains of dead organisms into smaller pieces and digest them with chmeicals
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| natural resource | Is anything in the environment that humans can use
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| soil conservation | Is the management of soil to limit it's destruction
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| crop rotation | a farmer plants different crops in a field all year
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| contour plowing | farmers plow their fields along the curves of a slope instead of in straight rows
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| conservation plowing | dead weeds and stalks of previous years crop are plowed into the ground to help return soil nurients , retain, moisture, and hold soil in place
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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