| A | B |
| erosion | process involved in the rock cycle |
| marble | a kind of nonfoliated metamorphic rock |
| compaction | process involved in the rock cycle |
| rock cycle | shows how one rock changes into another |
| weathering and erosion | sedimentary rocks are changed to sediments by |
| magma and lava | igneous rocks form from __when it cools |
| magma | the molten material deep inside Earth from which igneour rocks form |
| layers | foliated rocks are distinguished by |
| extrusive igneous | lava that cools quickly forms this kind of rock |
| heat | can cause metamorphic rocks to form |
| below | igneous rocks that form _____the surface are intrusive. |
| pressure | can cause metamorphic rocks to form |
| the presence of hot, watery fluids | can cause metamorphic rocks to form |
| rock | granite is an example |
| foliated | a classification of metamorphic rocks |
| nonfoliated | a classification of metamorphic rocks |
| sedimentary rocks | formed when loose materials become pressed or cemented together |
| detrital rocks | made from broken fragments of other rocks |
| detrital rock | is named according to the shape and size of the sediments |
| matter | changes that take place in rocks never create or destroy __________ |
| extrusive | when lava cools at Earth's surface, _______ignesour rocks are formed |
| intrusive | when magma cools deep inside Earth, ___igneous rocks are formed |
| basaltic igneous rocks | are rich in iron and magnesium |
| granitic igneous rocks | light-colored, high in silica content, lower in density than basaltic rocks |
| sedimentary rocks | form because sediments become pressed or cemented together |
| sedimentary rocks | form because sediments form from solution |
| sedimentary rocks | form by water evaporating, leaving crystals behind |
| organic | sedimentary rocks formed from the remains of once-living things |
| detrital | sedimentary rocks formed from broken fragments of other rocks |
| coal | a kind or organic sedimentary rock |
| weathering | the process in which rock is exposed to air, water or ice and braks into pieces |
| limestone | a kind of chemicla sedimentary rock |
| compaction | the process in which pressure from the upper layers of sediment pushed down on the lower layers, causing the sediments to stick together and form solid rock |
| cementation | the process in whcih minerals hold sediment togehter, like glue, making a detrital sedimentary rock |
| erosion | the movement of weathered material |
| slate | a kind of foliated metamorphic rock |
| weathering | process involved in the rock cycle |