1. Tension is a force that pulls on the plates (lithosphere)

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Review the Earths Layers without using words

• 1. Tension is a force that pulls on the plates
  (lithosphere). What does tension look like?
• Compression is s force the pushes on the plates
  (lithosphere). What does compression look like?
• Shearing is a force that pushes on the plates
  causing one to move in one direction and the
  other plate to move in opposite direction. What
  does shearing look like?
• Where does do the forces come from to cause the
  lithosphere to move?

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Learning Target I am learning how to analyze
data in order to predict changes on the Earths
surface. The purpose of this is to understand
why we have earthquakes, volcanic eruptions,
mid-ocean ridges and mountains. Today I am
learning about how energy transfer creates
convection currents and movement of matter.

• CW P.O.C.E.R. heat transfer
• HW Read 1.2 in your text book
• Convection and the Mantle
• Take Cornell notes

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Were are going to do a POCER to get a clue to
where the force is coming from to move the
lithosphere the tectonic plates.
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In your groups fill out the POCER

• Use a small index card to put on top of the
  beaker of test tube you are going to put on the
  top. Then once each container is on top of each
  other then carefully pull out the index card.
  Hold the containers carefully for several minutes
  and observe what happens to the solutions.
• You should be asking yourself what does this have
  to do with forces and the movement of the
  lithosphere?

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Predict What will happen to the two solutions? What will happen to the two solutions? What will happen to the two solutions? What will happen to the two solutions?
Observe Before After Before After
Explain
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So what about this?
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Inquiry????

• In which layer of the earth would you expect to
  find the mixing of the two solutions (purple)?
  Why?

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Convection Current happens in the oceans!
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Convection Current happen in a pot of boiling
water. Along within the mantle.
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Convection Current happen in the weather.
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Does convection current happen inside a lava lamp?
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Learning Target I am learning how to analyze
data in order to predict changes on the Earths
surface. The purpose of this is to understand
why we have earthquakes, volcanic eruptions,
mid-ocean ridges and mountains. Today I am
learning about convection currents and what they
have to do with Earths layers.

• CW Convection Current heat transfer
• HW None

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Questions over the reading

• What are the three types of heat transfer?
• How is heat transferred through space?
• What is a convection current?
• In general, what happens to the density of a
  fluid as it becomes hotter?
• Describe how convection currents form.
• Name two layers of Earth in which convection
  currents take place.
• What causes convection currents in the mantle?

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Note-catcher types of heat transfer

• In your pod Define radiation..
• Next,
• Define Conduction..
• Next,
• Define convection..

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Radiation

• Heat transfer with no contact taking place
  between the heat source and an object.

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Conduction

• Heat transfer within a material or an object when
  direct touching is taking place.

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Convection

• Heat transfer by the flow of an energized fluid.
  This flow usually happens form one part of fluid
  to another part.

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Pod Chat.

• In your pod Provide several examples of
  radiation..
• Next,
• Provide several examples of conduction .
• Next,
• Define Provide several examples of convection..
  

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Closure

• What does density have to do with the flow of a
  fluid / convection current?
• Hint
• Once a flow of energized fluid begins does it
  lose its energy?
• What will happen next.
• How would you describe atoms as they gain energy?
• Do these particle become less dense or more
  dense?
• How would you describe atoms as they lose energy?
• Do these particle become less dense or more dense?

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Making connections

1. The core of Earth is really hot. How do you
   think this affects what happens to the materials
   within the mantle?
2. How does the mantle and the materials within the
   mantle affect what happens on the crust
   lithosphere?
3. .