1. Rocks

2. Coco pebbles! Pebble Beach! What is a rock’s favorite cereal?
What’s a rock’s favorite golf course?
Pebble Beach!

3. Melted & cooled together
Types of Rocks
Metamorphic Rocks
Igneous Rocks
Squeezed & heated together
Melted & cooled together
Sedimentary Rocks
Cemented together

4. Sedimentary Rocks How are they made?
Wind and water break down the earth
Bits of earth settle in lakes and rivers
Layers are formed and build up
Pressure and time turn the layers to rock

6. Sedimentary Rock clastic non-clastic
Classification of Sedimentary Rocks
Sedimentary Rock
clastic
non-clastic
broken pieces of rock
chemical
(created when water evaporates)
organic
(created from remains of plants & animals)
eg. limestone

7. Where do you think sedimentary rocks would be formed/found near?
streams beaches
rivers deserts
oceans glaciers
coral reefs

8. Types of Sedimentary Rocks
Sandstone
Limestone
Shale
Conglomerate

9. Metamorphic Rocks How are they made?
morphic means “change” so these are rocks that have changed.
They were once igneous, sedimentary, or other metamorphic rocks.
Pressure and heat cause the change.

10. flattened & layered minerals
Classification
Metamorphic Rock
foliated
nonfoliated
“leafy”
flattened & layered minerals
no banding
slate
quartzite
These rocks are physically deformed and chemically changed due to temperature and pressure changes but the rock does not melt!

11. Where are metamorphic rocks likely formed/found near?
In fault zones
Mountain belts
Mid-ocean ridges

12. Types of Metamorphic Rocks
Schist
Gneiss

13. Igneous Rocks What are They?
Ignis is Latin for “fire”-igneous rocks are fire rocks
Formed underground by trapped, cooled magma
Formed above ground when volcanoes erupt and magma cools

14. Igneous Rock mafic felsic intrusive (plutonic) extrusive (volcanic)
light colored
eg. quartz
dark colored
eg. Iron & magnesium containing
mafic
felsic
Igneous Rock
intrusive
(plutonic)
extrusive
(volcanic)
Glassy/smooth & small crystals usually not even visible
large crystals & coarse texture

15. Where are igneous rocks likely formed/found near?
Mid-ocean ridges
Subduction zones
volcanoes

16. Types of Igneous Rocks
Scoria
Granite
Pumice
Obsidian

17. Idioms and Expressions to Ponder
Heart of stone
Head full of rocks
Stuck between a rock and a hard place
unaffectionate, unforgiving, cold
acted without thinking intelligently
in a situation where you have to make a decision that has no good options or solution

18. Every rock tells a story about:
how it formed
the environment where it has been
what it has experienced
Each of these stories is an adventure. We need to learn how to read a rock like we read a book.

19. Roundness and Sorting
Roundness – presence or absence of corners and sharp edges
Particles get rounder as they are transported.
Sorting - is a texture that indicates how long the sediments have been in the water system.
Poorly sorted sediments show a wide range of
grain sizes; well-sorted ones have similar sized grains. Sorting increases with transportation.

20. High
Energy
low
energy