2. What is a rock?
 A rock is any solid group of minerals or
mineral like matter that has occurred
naturally.
 Minerals can occur naturally, can come
from a rock that broke up, or can be
chemically made

3. Where are minerals found?
 Minerals can be found in:
 In mines
 Quarry’s
 Reserves

4. Igneous Rocks
 Begins as molten rock on the earths
surface and quickly cools and produces
a rock

5. Magma
 Happens from melting that occurs at
different levels with in the earths crust
 Once a magma body forms it floats to
the top and creates an igneous rock
 Once it reaches the earth crust it
becomes lava

6. Extrusive Igneous Rocks
 When the molten rock becomes solid at
the surface,
 It quickly cools and produces fine
grained rocks, and mineral crystals you
can’t see

7. Intrusive Rocks
 When magma stops forming inside the
earth
 It begins to slowly cool.

8. Metamorphic Rocks
 Process of change that causes mineral
content, texture, and chemical
composition all to change in some way

9. What causes
Metamorphism?
 Usually formed when new conditions
arise

10. Sedimentary Rocks
 Sediments that form together to make a
rock
 3 different types of sedimentary rocks

11. Detrital Sedimentary Rocks
 Gathering of particles that come from
mechanical and chemical weathering

12. Chemical Sedimentary
Rocks
 Dissolved particles that come from
chemical weather (Acid rain)
 Begin dissolved in water and come
together over time to form something

13. Organic Sedimentary Rocks
 Most common example is Coal
 Forms from Carbon that is left on our
planet that died many years ago
 Examples…

15. Works Cited
 The Planet Really Rocks. 2000. Oracale Think Quest. Web. 13
Oct. 2012.
 Rietze, Martin. Krakatoa. 2010. Private collection . Web. 13 Oct.
2012.
 Study Droid
 Bitesize. BBC, Feb. 2010. Web. 13 Oct. 2012
 Bryant, Ann. Geology Today. N.p., Mar. 2010. Web. 13 Oct.
2012.
 Metamorphic rock. 2011. Geology Today . Web. 13 Oct. 2012.
 Detrital sedimentary Rocks. 2011. Private collection . Web. 13
Oct. 2012.
 The Rock Cycle. 2012. Private Collection . Web. 13 Oct. 2012.
 Time to End the War on Coal. 2010. Web. 13 Oct. 2012.