Bell Work 9/27/2016

Show what you know… hardness Sedimentary Sedimentary SPI 0707.7.1 The mineral’s resistance to being scratched is known as the mineral’s __________. SPI 0707.7.2 What type of rock is known for stratification? SPI 0707.7.3 What type of rock is formed by compaction and cementation? hardness Sedimentary Sedimentary

Show what you know… By which process does metamorphic rock become sediment? Heat and pressure Cooling Weathering and erosion Melting

This week’s plan:

Today’s Goals: Describe the processes that drive the rock cycle. Identify the three different types of rocks.

Sedimentary Rock Formed by compacting and cementing Has strata (layers) Layers from deposition contains fossils EXAMPLES: Conglomerate Sandstone Siltstone Shale Limestone

Metamorphic Rock Examples: Marble Slate Schist Formed by heat/pressure Deep in the Earth Foliated=grains are in bands Nonfoliated=grain are not in bands Recrystallization=crystals change in size or minerals change in composition Examples: Marble Slate Schist

Metamorphic Rock

Igneous Rock Ex. Granite Ex. Rhyolite Intrusive: *Cools beneath earth’s surface *Cools very slowly *Creates large crystals Extrusive: *Cools above earth’s surface *Cools quickly *Creates very small crystals Formed by melting and cooling There are two types: Intrusive and Extrusive Ex. Granite Ex. Rhyolite

Rock Identification Activity At each station, there is a different rock. Observe the rock in great detail. Use the guide to identify the rock as either a SEDIMENTARY, METAMORPHIC, or IGNEOUS rock. Challenge! If time allows, use the second key to identify the specific name for the rock. Rotate on the SQUEAK!

Show what you know… Can a sedimentary rock be made from metamorphic rocks? Why or why not?