Monday October 27, 2014

LTLT: I can identify and analyze data to describe how major geologic events have changed organisms over time.

Learning target: I can describe the rock cycle

Criteria for Success

I can simulate the rock cycle using crayons.

I describe the three different types of rocks 

Analysis: What is the rock cycle?

Synthesis: How will you create/act out the rock cycle?

Engage                                                                                                                               

Warm UP: What do you know about rocks??    **Share out using stick jar    **Review LTLT, LT & CS    **Have rocks on my table

Explore

Crayon Rock Cycle Lab What are the three types of rocks in the world? *Igneous: *Metamorphic:   *Sedimentary: -Give them this information Today, you will be using crayons to model the processes that create each of these 3 types of rock       *Hand out lab sheets Card Placements: After completing the lab, use the cards, and place them where you think the need to go for the rock cycle.

Explain (Note:  It may be appropriate to provide explicit teacher instruction during this component of the lesson.)                            

Notes: What is the rock cycle? Hand out notecatcher Q: What are the three types of rocks in the world? *Igneous: *Metamorphic:   *Sedimentary: -Give them this information Q: How is each type of rock formed? Use Cards on the board: -The Rock Cycle is a pattern of events that occurs over and over. It is a pattern of the events that change rock. It is like a big circle. You start with the sedimentary rock. It may change if it gets buried. It may change into metamorphic rock with heat and pressure. It can also melt and become magma. If the magma cools and then hardens it is now igneous rock.

Extend

Rock Cycle Representations: Create your own version/representation of the rock cycle…I had you guys use crayons,         What will you use? Extra: Acting Out Today, in pairs or groups of 3, you will be acting out the rock cycle. You will have 15 min to prepare, and will present your act to the class.

Evaluate

Q: With your shoulder partner, what are some of the ways rock changes during the rock cycle. Exit ticket: 3-2-1 1. What are at least 3 ways that rocks change during the rock cycle? 2. Choose 2 rocks to explain how they form 3. What is 1 explanation of the rock cycle?

Materials needed:

Aluminum Foil

Crayons

Scissors/pencil sharpeners

Class set of rock cycle sets 

 

LT: I can explain the rock cycle

Name ________________  Date: ____________ Class Period: _______

The Rock Cycle Crayon Lab

How do rocks form? Are new rocks forming at this moment? Why do they break up into small pieces? Why are there layers and streaks?

Materials:
*4 different color crayons        

*Pencil Sharpener or scissors

*Aluminum Foil

Part 1: Weathering

Gather your materials. The crayons represent your parent rock material and the pencil sharpener/scissors represent natural forces.

Spread out your aluminum foil.

Shave each crayon color into a small pile onto the aluminum foil. Keep each color separate.

Q: If your crayons represent rocks, and the wax shavings represent rock fragments, then are all your "rock fragments" the same size?

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Q: Why or why not?

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Q: What are some of nature's weathering forces?

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Part 2: Erosion & SedimentationYou are now the erosion force. Carefully "erode" (move) one color of your "rock

fragments" and put them in the center of the foil making a pile" to the "sediment."

Continue adding the other "rock fragments" to the "sediment."

When finished fold each side of the foil over the "rock fragments."

Q: How does this relate to natural forces and rock creation?

________________________________________________________________________________

Part 3: Compaction, Cementation & Lithification

Place your "rock fragment" sandwich on the lab table. GENTLY compress your package by carefully applying pressure with your hand. Carefully open your package.

Break apart the compressed shavings, and look at the broken edges.

Q: Describe the layers.

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Q: How do they compare to the original layers?

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Q: What happened to the spaces between the fragments?

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Q: What kind of rock does this represent?

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Q: How did it form?

________________________________________________________________________________

Part 4: Metamorphism

Replace the fragments and rewrap your package. Your rocks are now going to be

buried deep within the earth or be subjected to mountain building.

Add as much pressure as you can by standing with one foot on your package and applying all of your body weight to it.

Remove your newly formed "metamorphic rock." Open the foil and break your rocks open.

Q: What do they look like?

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Q: What happened to the thickness of the shavings?

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Q: What happened to the fragment shapes

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Q: What happened to and the texture of the rock shavings? 

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Q: What kind of rock does this represent?

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Q: How did it form?

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Part 5: Igneous Rock Formation & Volcanic Activity

Rewrap your rocks and heat them up. You will want to hold them in the hands, to try to create heat. You are trying to melt the shavings.

**As you are trying to heat this up, get a set of rock cycle cards, and attempt to place them in order.

Q: What kind of texture and shape do you see?

________________________________________________________________________________

Q: What kind of rock does this represent?

________________________________________________________________________________

Q: How did it form?

________________________________________________________________________________

  The Rock Cycle is a pattern of events that occurs over and over. It is a pattern of the events that change rock. It is like a big circle. You start with the sedimentary rock. It may change if it gets buried. It may change into metamorphic rock with heat and pressure. It can also melt and become magma. If the magma cools and then hardens it is now igneous rock.