Rocks and Minerals Theme Printables
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Name _____________________________
Date ___________________
Select the definition that most nearly defines the given word.
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1.   foliated
  A metamorphic rock that has visible layers or bands.
  The resistance a mineral has to being scratched.
  Rock formed by the cooling of molten magma or from lava.
  The formation of large rocks from particles of sediment that occurs as pressure is applied.
2.   weathering
  The process in which rocks are broken down into smaller pieces by ice, water, the wind, changes in temperature, plants, animals, or by chemicals.
  Particles arranged in a repeating pattern. Most minerals are made up of these.
  The process in which moving sedimentary material slows down, or from ice that melts.
  A hard material that is made up of one or more minerals.
3.   metamorphic
  A rock that is formed by adding heat, pressure, or chemicals to another rock.
  A metamorphic rock that does not appear to be layered.
  A scientist who studies the earth.
  When a mineral is ground into powder, this is the color of the powder. Sometimes this powder is not the same color as the original mineral.
4.   crystallization
  The process in which magma cools and hardens into rock.
  Rock made of bits of sedimentary material that was compacted in layers.
  A rock that is formed by adding heat, pressure, or chemicals to another rock.
  The changing and evolution of rocks from one type of rock to another that takes place over time.
5.   crystal
  Particles arranged in a repeating pattern. Most minerals are made up of these.
  How a mineral breaks apart when a tool, such as a hammer, is used to break it. A mineral that exhibits this will break into smooth pieces.
  A property of minerals that is used to describe how a mineral reflects light.
  The process in which rocks are broken down into smaller pieces by ice, water, the wind, changes in temperature, plants, animals, or by chemicals.
6.   geologist
  A type of physical weathering in which rocks are gradually worn down.
  The process in which magma cools and hardens into rock.
  A nonliving, solid material that was formed in nature and has particles arranged in a repeating pattern.
  A scientist who studies the earth.
7.   nonfoliated
  A metamorphic rock that does not appear to be layered.
  A type of rock that forms at Earth's surface. This rock may form from material that has been squeezed together or it may form from the material that is left after the evaporation of water.
  Packed down, as in sediment that becomes rock.
  The changing and evolution of rocks from one type of rock to another that takes place over time.
8.   deposition
  A rock that is formed by adding heat, pressure, or chemicals to another rock.
  The process in which moving sedimentary material slows down, or from ice that melts.
  A hard material that is made up of one or more minerals.
  Packed down, as in sediment that becomes rock.
9.   mineral
  Rock made of bits of sedimentary material that was compacted in layers.
  A nonliving, solid material that was formed in nature and has particles arranged in a repeating pattern.
  The resistance a mineral has to being scratched.
  A metamorphic rock that has visible layers or bands.
10.   sedimentary
  A type of rock that forms at Earth's surface. This rock may form from material that has been squeezed together or it may form from the material that is left after the evaporation of water.
  The formation of large rocks from particles of sediment that occurs as pressure is applied.
  A scientist who studies the earth.
  The process in which magma cools and hardens into rock.
11.   erosion
  The process in which rocks are broken down into smaller pieces by ice, water, the wind, changes in temperature, plants, animals, or by chemicals.
  The process in which moving sedimentary material slows down, or from ice that melts.
  A property of minerals that is used to describe how a mineral reflects light.
  A type of physical weathering in which rocks are gradually worn down.
12.   rock
  Particles arranged in a repeating pattern. Most minerals are made up of these.
  A type of physical weathering in which rocks are gradually worn down.
  A hard material that is made up of one or more minerals.
  How a mineral breaks apart when a tool, such as a hammer, is used to break it. A mineral that exhibits this will break into smooth pieces.