1. Rocks & The Rock Cycle

2. Notes The Rock Cycle Notes - Advanced Write the definition of a rock: Rocks - A solid, naturally occurring mineral or mineral-like substance.

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

4. Rocks vs Minerals MINERALS ARE CLASSIFIED BY ◦ CHEMICAL COMPOSITION

5. 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

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

7. TYPES OF ROCKS TYPES OF ROCKS: 1.) IGNEOUS ◦ SEDIMENTARY ◦ METAMORPHIC

8. FORMED WHEN MAGMA or LAVA COOLS AND HARDENS (SOLIDIFIES) 2 TYPES 1. INTRUSIVE: inside earthINTRUSIVE  MAGMA COOLS SLOWLY BENEATH EARTH’S SURFACE  LARGER CRYSTALS  COARSE GRAINED (TEXTURE) 2. EXTRUSIVE2. EXTRUSIVE: outside earth’s surface  LAVA COOLS QUICKLY ON THE SURFACE  SMALLER CRYSTALS  FINE GRAINED (TEXTURE)

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

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

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

12. 3 TYPES of Sedimentary rocks: A. ORGANIC: FOSSILIZED REMAINS OF PLANTS OR ANIMALS B. CLASTICB. 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

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

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

15. Examples of Sedimentary rocks SANDSTONE LIMESTONE COAL CONGLOMERATE

16. 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. FOLIATEDA. FOLIATED: CRYSTALS ALIGNED IN LAYERS B. NON-FOLIATED: CRYSTALS ARRANGED IN RANDOM MANNER

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

18. HEAT and PRESSURE KEY WORDS

19. Examples of metamorphic rocks Soap stone Gniess

20. Rock Cycle

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

22. 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

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

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

25. 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

26. 1. Extrusive Igneous http://www.kitsch.net/lavawalker/ 2. Intrusive igneous http://nature.berkeley.edu/classes/eps2/wisc/Lect3.html 3. Sedimentary scroll down for diagrams http://www.theapproachinghour.com/earth/earth/the_layers_and_the_internal_struc ture_of_earth.asp http://www.theapproachinghour.com/earth/earth/the_layers_and_the_internal_struc ture_of_earth.asp 4. http://en.m.wikibooks.org/wiki/High_School_Earth_Science/Sedimentary_Rocks Sandstone 5. Organic...why coal is cool http://geology.com/articles/coal-through-a-microscope.shtml 6. Metamorphic rock formation http://www.docbrown.info/page21/GeoChangesANS06.htm http://elearning.stkc.go.th/lms/html/earth_science/LOcanada2/207/1_en.htm