Structure of the Earth-SSMS
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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| rock cycle | the cycle in which rocks form
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| rocks | consolidated or unconsolidated solid mineral matter
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| mineral | a naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition
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| crust | the layer of rock that forms Earth's outer surface
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| mantle | the layer of hot, solid material between Earth's crust and core
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| bedrock | the solid layer of rock beneath the soil
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| humus | dark-colored organic material in soil
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| fertility | a measure of how well soil supports plant growth
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| loam | rich, fertile soil that is made up of about equal parts of clay, sand, and silt
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| soil horizon | the layer of soil that differs in color and texture from the layers above or below it
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| topsoil | an upper layer of soil consisting of rock fragments, nutrients, water, air, and decaying plant and animal matter
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| subsoil | the layer of soil beneath the topsoil that contains mostly clay and other minerals
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| litter | the loose layer of dead plant leaves and stems on the surface of the soil
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| decomposition | to cause something (such as dead plants and the bodies of dead animals) to be slowly destroyed and broken down by natural processes, chemicals, etc.
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| contour plowing | plowing fields along the curves of a slope to prevent soil loss
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| crop rotation | the planting of different crops in a field each year to maintain soil's fertility
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| conservation plowing | soil conservation method in which the dead stalks from the previous year's crop are left in the ground to hold the soil into place
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| sod | a thick mass of grass roots and soil
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| natural resource | anything in the environment that humans use
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| soil conservation | the management of soil to prevent its destruction
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| earthquakes | the shaking that results from the movement of rock beneath Earth's surface
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| tectonic plate theory | how scientist thought plate tectonics came about
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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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.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
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.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
autumn.crandall
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