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19 Cards in this Set
- Front
- Back
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Hard pieces of the earth's surface are called ____________________.
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rocks
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Any part or mark of a living thing that is naturally preserved after it dies is called a ________________.
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fossil
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Solid materials in nature that were never alive are called ______________.
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minerals
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Plants grow in the
a. topsoil, b. subsoil, or c. bedrock. |
a. topsoil
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Solid, unbroken rock is called _______________.
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bedrock
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The remains of living things that have died and decayed are called ______________.
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humus
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A _________________ is an opening in the earth that allows hot, melted rock to come to the surface.
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volcano
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_________________ rock forms when hot, melted rock cools.
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Igneous
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____________________ rock forms when layers of sediment are pressed together and harden.
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Sedimentary
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_________________ rock forms when other rocks are changed by great heat and pressure.
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Metamorphic
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The surface of the earth is always
____________________. |
changing
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Sandstone is a ___________________
rock. |
sedimentary
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Soil is made of small bits of broken ________, humus, air, and water.
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rock
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Humus is found only in ____________.
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topsoil
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Rocks are made of one or more _______________.
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minerals
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The breaking down of rocks is called ___________________.
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weathering
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Name 3 characteristics of minerals that can be used to identify them.
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crystal shape,
color, streak, or hardness |
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Name 4 things that can break apart or weather rocks.
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water,
ice, wind, or plants |
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Be able to label the 3 layers of soil.
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topsoil
subsoil bedrock |
