Name
Three Types of Rock
Use the clues to complete the crossword
puule.
Across
1. The type of rock that
forms when magma or
lava cools and hardensr
4. _metamorphic
rock has straight, wavy,
or light and dark layers.
6. The type of rock most
likely to contain visible
fossils
8. The size of the
in
igneous rock depends
on how quickly or
slowly the magma or
lava cooled.
9. The fpe of igneous
rock that forms beneath
the surface of the earth
10. In sedimentary rock,
sediments are pressed
together and then
together
to form rock.
Down
2. Tiny pieces of rock, soil, sand, or dead plants that make up sedimentary rock
3. The type of rock formed by heat and pressure
5. Squeezed or pressed together
7. The type of igneous rock formed when melted rock reaches Earth's surface
Read the sentences . If the statement is true, write a T on the line
on the line, and then rewrite it to make it true.
1.
_
. If the statement
is false ,
write an F
An igneous rock that cools quickly will have larger crystals than a rock that cools slowly.
Sedimentary rock may contain bits of shell.
2.
A rock with wavy layers is probably an igneous rock.
3.
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Geology: Rocks & Minerals
Name
The Rock Cycle
Choose a term
from the box to complete each statement correctly. Write the term in the blank.
sediment
sedimentary
L
igneous
rock cycle
magma
metamorphic
compacting and cementing
weathering and erosion
Rock formed when sedin\ents are pressed tightly and cemented together is known
as
rock.
2. When magma cools
and hardens,
it forms
rock.
3. The process of rock changing from one type to another is called the
4. Rock formed by heat and pressure
beneath earth's surface is called
rock.
break rock into sediment.
5.
6. Wind
and water can break rock into bits called
7. Melted rock
8.
beneath Earth's surface is called
Se<iimentary rock forms when sediments are pressed
tightly and bound together. These two
processes are known as
Each item below diagrams a path rock can take as it travels through the rock cycle. FilI in the missing
step in each path.
9. metamorphic rock + weathering
+
and erosion -'+ sediment
+
sedimentary rock
10. sedimentary rock
--+
+ igneous
melting --) magma --)
rock
-+ melting -') magma
11. igneous rock -+ heat and pressure ->
-+ cooling and hardening --+
12. sedimentary rock -+
13. metamorphic rock
+
--+
weathering and erosion
compacting & cementing
14. metamorphic rock
metamorphic rock
--+
+ sedimentary rock
--+
O 2011 McDONALD PUBLISHING CO.
--) magma --+ cooling and hardening
Geology: Rocks & Minerals