1. More from Crystal Cave of Giants

5. Because of the high heat, igneous rocks ______ contain _______.
never
fossils

6. This mixture is called ______________.
Sedimentary rocks form when eroded bits of existing rocks combine with decomposing organic matter.
This mixture is called ______________.
sediment

7. Sediments are carried into bodies of water and pile up on top of each other over millions of years.

8. When sediments are dropped off into bodies of water, this process is called __________.
deposition

9. higheredbcs.wiley.com

10. picasaweb.google.com

11. This process is called _________________.
Their own weight plus the weight of the water above them causes __________ to build up.
pressure
pressure
The _________ squeezes out the water and compresses the sediments together.
This process is called _________________.
compaction

12. Sometimes, organic matter forms ________.
fossils
Jellyfish
Fossils

13. cementation layers The sediments bond together into sedimentary rock.
This process is called _______________
cementation
Sedimentary rock is usually built up in _________ which are visible when you examine a rock sample.
layers

15. Sedimentary Rocks
library.thinkquest.org

16. igneous sedimentary changed pressure heat without melting
Metamorphic rocks form when ________ or ____________ rocks are _________ by _________ and _____ but ________ ________.
igneous
sedimentary
changed
pressure
heat
without
melting

17. An existing rock may heat up if it comes near _________.
magma

18. stloe.most.go.th

19. These sections of crust are called __________________.
A rock may also get heat and pressure if a section of Earth’s crust moves over it.
These sections of crust are called __________________.
tectonic plates

22. They sometimes ______ into ______.
Metamorphic rocks usually contain _________ and may be _____ and _____.
crystals
hard
shiny
flake
They sometimes ______ into ______.
layers

23. library.thinkquest.org
Layers of slate

24. Slate Roof

25. Slate Floor Tiles

26. Metamorphic rocks have the same ____________________ as the rocks they were made from.
chemical make-up

27. Metamorphic Rock

28. topex.ucsd.edu/.../lecture10/lecture10.html

29. DRAW THIS CHART ON THE BACK OF YOUR NOTES
COMMON USES OF ROCKS
Rock Type
Example
Use
Igneous 1. 2. 3.
Sedimentary
Metamorphic
Granite
Countertops
Pumice
Soap
Sculpture
Toothpaste
Tombstones
Erasers
Coal
Limestone
Improve soils
Energy
Fingernail Polish
Gravel
Buildings
Steel
Marble
Countertops
Slate
Roofing
Sculpture
Blackboards
Knife Sharpening
Paper