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| Molten rock underneath the Earth's surface. |
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| Rock that forms by pieces of earlier rocks becoming cemented together by minerals. |
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| Mineral grains grow larger in this metamorphic process. |
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| A naturally formed solid that is usually made up of minerals. |
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| This rock is unique because it is made completely of ancient plant remains. |
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| The set of natural processes that form, change, break down and re-form rocks. |
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| Molten rock that has reached Earth's surface. |
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| Existing rocks that change due to heat and pressure. |
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| Sedimentary rock formed by remains of organisms from long, long ago. |
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| Rock that forms when lava or magma cools, recrystallizes and hardens. |
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| Dead leaves, branches and trunks are classified as these. |
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| Rock particles that have been eroded from a larger rock. These pieces will eventually end up in a river. They will probably be carried there by _____________ and ____________. |
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| Ocean organisms die and their shells and skeletons sink to the bottom of the sea where they become buried, compacted and cemented. What type of rock will be formed? |
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Definition
| Temperatures inside the Earth are hot enough to melt rock. The temperatures inside the Earth range from _____________ to _______________ degrees F. |
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| Magma cools within the Earth to form the hardest, longest lasting rock on the planet known as _______________________. |
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Definition
| Mt. St. Helens in Washington is a composite volcano that produces thick, sticky lava that is rich in _______________. |
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Definition
| Metamorphic rocks form from existing rocks when they are exposed to high amounts of ____________ and _____________. |
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Term
| Igneous, Sedimentary and Metamorphic Rocks |
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Definition
| Metamorphic rocks form from these parent rocks. |
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Term
| Igneous and Metamorphic Rocks |
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Definition
Most of Earth's crust is formed from
a) igneous and metamorphic rocks
b) coal
c) sedimentary rock
d) clay and silt |
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Term
| To learn how the Earth changes over time. |
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Definition
| Why do scientists study rocks? |
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Definition
| These are two rocks that contain no minerals at all. |
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Definition
| This is the only mineral found in limestone. It gives it the white color. |
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False.
Changes over large areas require both heat and pressure. |
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Definition
| T or F: Metamorphic changes over large areas require either heat or pressure. |
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False.
Sedimentary rocks can form on land or underwater. |
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Definition
| T or F: Sedimentary rocks can only form underwater. |
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Definition
| The lighter the color, the _____________ the silica content in a rock. |
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Definition
| Which of the two types of lava that we studied flows more easily? |
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| This type of rock may form as minerals crystallize when water evaporates. |
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| This type of rock makes up Mount Rushmore and the Great Wall of China. |
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| This type of igneous rock forms when lava cools. |
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Definition
| The flat, parallel bands that minerals form in metamorphic rock. |
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| Volcano erupts/magma to lava-Lava cools to igneous-Erosion-Sediments-Carrying and Deposition-Compaction/Cementation-Rock pushed down further, exposed to higher heat/pressure-Metamorphic changes- Rock pushed down further-Melts back to igneous. |
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Definition
| Describe the rock cycle in detail beginning and ending with magma. |
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