1. Rocks & The Rock Cycle

2. TAKE WHAT YOU LEARNED FROM OUR ACTIVITY (DECIDING IF IT’S A ROCK OR NOT) & CREATE A DEFINTION FOR A ROCK.
Bell Ringer

3. The Rock Cycle Notes - Advanced Write the definition of a rock: Rocks - A solid, hard, non-living, naturally occurring mineral or mineral-like substance that usually forms over a long period of time.
Notes

4. Read me: Rocks vs Minerals
MINERALS- ARE CONSIDERED ROCKS
NATURALLY FORMED OF ELEMENTS OR COMPOUNDS
INORGANIC SOLID
HAVE CRYSTALS
NOT MADE OF ROCKS
HAS A DEFINITE CHEMICAL MAKEUP
ROCKS
SOLID MIXTURE OF MINERALS
MAY BE ORGANIC
Forms naturally

5. MINERALS ARE CLASSIFIED BY
CHEMICAL COMPOSITION
Rocks vs Minerals

6. Rocks vs Minerals ROCKS ARE -CLASSIFIED BY HOW THEY ARE FORMED
EACH TYPE OF ROCK IDENTIFIED BY
-COMPOSITION= what minerals the rock is made of.
-TEXTURE=sizes, shapes and positions of grains in the rocks

7. What rocks are made of… THE COMPOSITION OF ROCKS IS DETERMINED
-BY THE KIND OF MINERALS &
-THE AMOUNT MINERALS THAT MAKE IT UP

8. TYPES OF ROCKS:
1.) IGNEOUS
SEDIMENTARY
METAMORPHIC
TYPES OF ROCKS

9. FORMED WHEN MAGMA or LAVA COOLS AND HARDENS (SOLIDIFIES)
2 TYPES
1. INTRUSIVE: inside earth
MAGMA COOLS SLOWLY BENEATH EARTH’S SURFACE
LARGER CRYSTALS
COARSE GRAINED (TEXTURE)
2. EXTRUSIVE: outside earth’s surface
LAVA COOLS QUICKLY ON THE SURFACE
SMALLER CRYSTALS
FINE GRAINED (TEXTURE)

10. Key Words: ALL TYPES OF ROCKS CAN BE CHANGED INTO IGNEOUS ROCK BY MELTING & COOLING OF ANY ROCK

11. Examples: Obsidian, Granite
KEY WORDS
MELTING and COOLING
Examples: Obsidian, Granite

12. 2. Sedimentary Rocks-
FORMED WHEN ROCKS ARE
WEATHERED AND ERODED,
(Then) SEDIMENTS get COMPACTed AND CEMENTed into SOLID ROCKs

13. 3 TYPES of Sedimentary rocks:
A. ORGANIC: FOSSILIZED REMAINS OF PLANTS OR ANIMALS
B. CLASTIC: FRAGMENTS OF OTHER ROCK ARE COMPACTED TOGETHER
C. CHEMICAL: SEDIMENTS ARE “GLUED” TOGETHER BY DISSOLVED MINERALS
(write in space at bottom)-TEXTURE IS DETERMINED BY THE
SIZE OF PARTICLES OF SEDIMENT

14. ALL TYPES OF ROCKS CAN BE CHANGED INTO SEDIMENTARY ROCK BY
-WEATHERING, EROSION, & SEDIMENTS COMPACTING & CEMENTING TOGETHER

15. KEY WORDS WEATHERING and EROSION COMPACTING and CEMENTING
Sedimentary Rocks

16. Examples of Sedimentary rocks
SANDSTONE LIMESTONE COAL CONGLOMERATE
Examples of Sedimentary rocks

17. 3.METAMORPHIC FORMED WHEN EXISTING ROCK IS CHANGED INTO NEW ROCK BY THE HEATING OF THE ROCK AND PRESSURE FROM OTHER ROCKS
AROUND IT.
2 TYPES of Metamorphic:
A. FOLIATED: CRYSTALS ALIGNED
IN LAYERS
B. NON-FOLIATED: CRYSTALS ARRANGED
IN RANDOM MANNER

18. ALL TYPES OF ROCKS CAN BE CHANGED INTO METAMORPHIC ROCK BY HEAT AND PRESSURE

19. KEY WORDS
HEAT and PRESSURE

20. Examples of metamorphic rocks
Soap stone
Gniess
Examples of metamorphic rocks

21. Rock Cycle

22. THE ROCK CYCLE
One of the cycles of nature that continually recycles rocks & materials that make up Earth’s crust
limestone
marble
siltstone
shale
gneiss
slate

23. ROCK CYCLE
There are many different paths a rock may follow to go through the process of changing from one type of rock to another

24. THE ROCK CYCLE Gneiss Schist (m) Phyllite (m) (m) Slate Siltstone
Shale
(s)

25. Granite
(i)
Sandstone
(s)
Quartzite
(m)
THE ROCK CYCLE

26. The color of rocks may be different because of the minerals or other substances that make it up.
Breccia Sedimentary
Gneiss Metamorphic
Quartzite Metamorphic
Granite Igneous

27. 1. Extrusive Igneous http://www. kitsch. net/lavawalker/ 2
1. Extrusive Igneous  Intrusive igneous Sedimentary scroll down for diagrams ture_of_earth.asp
4. Sandstone Organic...why coal is cool Metamorphic rock formation