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January 10, 2013 Q-2 Pg. Daily Goal: We will be able to explain the steps of the rock cycle. Homework: Sign permission slip Science Starter : What is the difference between a mineral and a rock? List one characteristic and one property of minerals. How are minerals formed?. Brainstorm!.

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january 10 2013 q 2 pg

January 10, 2013 Q-2 Pg.

Daily Goal:We will be able to explain the steps of the rock cycle.

Homework:Sign permission slip

Science Starter:

What is the difference between a mineral and a rock?

List one characteristic and one property of minerals.

How are minerals formed?

brainstorm
Brainstorm!
  • Take 2 minutes to write what you think the answer is for each of these questions. (Make a hypothesis if you don’t know.)
  • Do you think that rocks can dissolve?
  • What are some forces that may be able to break down rocks?
  • Once a rock is formed, does it stay a rock forever?
let s test our hypotheses
Let’s test our hypotheses!
  • You will be working with your table group to determine how rain acts as a force of nature to break down rocks.
  • In this investigation, ourvinegarwill represent rain water.
  • The chalk will represent limestone (a type of rock.)
    • Vinegar is acidic. Rainwater is naturally acidic, but less so than vinegar.
    • Chalk is made of carbonate minerals, and so is limestone rock.
prepare to experiment
Prepare to Experiment
  • Take 5 minutes to read over the materials and procedures with your group and to write down a hypothesis.
    • REMEMBER to have an independent variable and a dependent variable (“We think…because…”).
let s start today with a little story
Let’s Start Today With a Little Story…

Once upon a time, there was this volcano who had hot magma churning deep inside. It was making him sick, and so he threw up.

I don’t feel so hot. I think I need to vom.

slide8

As chunks of lava flew out, they cooled and hardened. New rocks were born! One was named Iggy.

slide9

As Iggy rolled down the mountain, little bits of him started to come off. These little bits were called sediments, and the little bits were carried off by wind, water and other natural forces.

slide11

Little did Iggy know that the parts of him that had broken off of him would enjoy a cool journey. After being carried by wind and water, they ended up in piles. After many layers of piles, pressure built up and water began to cement the sediments together into sedimentary rock.

slide12

Some of the sedimentary rock at the very bottom began to get squished by the pressure from all the rock on top of it. As it got pushed down further, it heated up and began to bake! The rocks baked so much that they became new rock called metamorphic rock.

Is it hot in here? I think I am going to bake!!

slide13

Some of the rock got so hot that it even melted back into magma and traveled back to the mantle. By this time, Iggy had also melted. When Iggy saw that all of him had melted and was now back together, he was very excited. He just hoped the volcano wouldn’t get sick again. THE END.

okay fine miss petersen is not a great story teller
Okay, fine. Miss Petersen is not a great story-teller.
  • But this is basically how the rock cycle takes place!! Today, we will talk more about each step of the process!
you will be taking your own notes today
You Will Be Taking Your Own Notes Today
  • Be sure to listen so you know the important parts you should have down!
  • Here is an example of what your notes might look like by the end.
what is the rock cycle
What is the Rock Cycle?
  • The process where the 3 types of rocks can change and become new rock
step 2 weathering and erosion
Step 2: Weathering and Erosion
  • Over long periods of time, large rocks are worn down to small particles called sediments (sand, pebbles, etc).
  • Water, wind and ice can break rocks down.
step 3 transportation
Step 3: Transportation
  • Eroded rock particles are carried away by wind or by rain, streams, rivers, and oceans. 
step 4 deposition
Step 4: Deposition
  • As rivers get deeper or flow into the ocean, their current slows down, and the rock particles (mixed with soil) sink and become a layer of sediment. Often the sediment builds up faster than it can be washed away, creating little islands and forcing the river to break up into many channels in a delta. The Mississippi delta in Louisiana deposits lots of sediment in the Gulf of Mexico!
step 5 compaction and cementation
Step 5: Compaction and Cementation
  • The layers of sediments stack up.
  • Dissolved minerals fill in the gaps between the sediments and then get solid like cement.
  • After years, the sediments turn into sedimentary rock!
step 6 metamorphism
Step 6: Metamorphism
  • Over really long periods of time, sedimentary or igneous rocks can get buried deep in the ground.
  • Heat and pressure can “bake” the rocks into new rocks called metamorphic rocks.
step 7 rock melting
Step 7: Rock Melting
  • Eventually, metamorphic rocks undergo enough heat that they melt and become magma again.
slide28

IGNEOUS

Crystallization

MAGMA

slide29

IGNEOUS

Plutonic

Crystallization

MAGMA

slide30

Volcanic

IGNEOUS

Plutonic

Crystallization

MAGMA

slide31

Weathering

Volcanic

IGNEOUS

Plutonic

Crystallization

Uplift

MAGMA

slide32

SEDIMENT

SEDIMENT

Weathering

Volcanic

IGNEOUS

Plutonic

Crystallization

Uplift

MAGMA

slide33

Erosion

SEDIMENT

Weathering

Transport

Deposition

Volcanic

IGNEOUS

Plutonic

SEDIMENTARY

Crystallization

Uplift

MAGMA

slide34

Erosion

SEDIMENT

Weathering

Transport

Deposition

Volcanic

IGNEOUS

Plutonic

SEDIMENTARY

Crystallization

Uplift

MAGMA

slide35

Erosion

SEDIMENT

Weathering

Transport

Deposition

Volcanic

IGNEOUS

Plutonic

SEDIMENTARY

Increased P&T

METAMORPHIC

Crystallization

Burial

Uplift

MAGMA

slide36

Erosion

SEDIMENT

Weathering

Transport

Deposition

Volcanic

IGNEOUS

Plutonic

Can you see

any shortcuts?

SEDIMENTARY

Increased P&T

METAMORPHIC

Crystallization

Melting

Burial

Uplift

MAGMA

slide37

Erosion

SEDIMENT

Weathering

Transport

Deposition

Volcanic

IGNEOUS

Plutonic

SEDIMENTARY

Increased P&T

METAMORPHIC

Crystallization

Melting

Burial

Uplift

MAGMA