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Rock Cycle.(1)
1. Biology means the study of life, so what
does geology mean?
Geology means...
Rock Cycle.
2. Erosion occurs when weather breaks down
rocks and carries away the pieces. (2)
Rock Cycle.
3. The principle of uniformitarianism states
that the geologic processes that operate
today also operated in the past.
4. Geologic process happen slowly and must
have taken a long time to produce the Earth's
enormous features, so the Earth must be
very old. (3)
5. Igneous, sedimentary, and metamorphic are
the three main groups of rock.
6. Igneous rock forms when molten material
from beneath the Earth's surface cools and
hardens.
7. Sedimentary rock is made of deposited
sediments that have solidified.
8. Sediments are tiny pieces of rock and
minerals.
9. Most fossils, such as the remains of plants
and animals, are found in sedimentary rocks.
Floods are cataclysms
contrary to
uniformitarianism.
10. Metamorphic rock forms when an existing
rock is changed by heat, pressure, or
chemical reactions.
11. Most metamorphic rock forms under
pressure deep underground. (4)
12. The rock cycle is a series of processes that
slowly change rocks from one kind to
another.
13. Forces inside the Earth and at the surface
produce a rock cycle that builds, changes,
and destroys rock. (5)
14. The rock cycle starts with volcanic activity
involving magma – molten material beneath
the Earth's surface.
15. Some igneous rock forms when magma
hardens underground and others form from
magma flowing on the Earth's surface called
lava. (6)
16. Over time , Mountains made of igneous
rock are worn away by erosion.
17. Deposition occurs when sediments are
moved by water and wind to low places to
form deep deposits. (7)
18. Heat and pressure increase with depth in
the Earth, so some deeper rocks can be
slightly change into metamorphic rock.
19. Forces inside the earth can push all three
types of very deep where the intense heat
and pressure melts them into magma again.