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. Look at the three different rocks at your table.
Discuss with your table mates:
What makes these 3 rocks different?
What do they have in common?
Differences: color, size, shape, texture
Similarity: all are made of smaller pieces (grains)

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

5. Sedimentary Rocks How are they are 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

7. Sedimentary Rock clastic non-clastic broken pieces of rock chemical
(a precipitate comes out of water solution)
organic
(remains of plants & animals)
eg. Stalactites/stalagmites

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

9. Types of Sedimentary Rocks
Sandstone
Limestone
Gypsum
Conglomerate
Shale

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

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

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

13. Types of Metamorphic Rocks
Schist
Gneiss

14. 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

15. 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

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

17. Types of Igneous Rocks
Scoria
Granite
Pumice
Obsidian

18. 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

19. 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.

20. 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.

21. High
Energy
low
energy

23. Rock Cycle Activity
Check the drawer. See which table can put together the rock cycle diagram first!