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Day 4 plate boundaries
1. 9/21/11
LEQ: How do plate boundaries change the
shape of our earth? (complete sentences!)
1. What do you think the word “boundary” means?
(write a definition in your own words!)
2. What do we call the giant slabs of lithosphere that
cover the surface of our earth?
3. How is a tectonic plate similar to a dinner plate?
4. Make a list of everything you know about
earthquakes and volcanoes!! (bullets are fine!)
3. Today’s LEQ: How do plate boundaries
change the shape of our earth?
By the end of today, you should be able to…
1. Name the 4 types of plate boundaries
2. Describe how the 4 types of boundaries
move
3. Explain the geologic changes that each
boundary creates
5. GROUP READING: WRITE THE
______BOUNDARIES NAME OF
THE PLATE
1. BOUNDARY
2. YOU ARE
READING
3. HERE!
6. BECOME AN EXPERT!
a) Read the text aloud as a group.
b) After your group finishes reading, answer the
following questions TOGETHER in your notebook
1. What happens to the tectonic plates at
your plate boundary?
2. What are the EFFECTS of your plate
boundary?
3. What is an EXAMPLE of the plate
boundary you read about?
7. SHARE YOUR KNOWLEDGE!!
TEACH your new group about the article you read!
**Use your answers to questions 1-3 to help you!
You are the only person in your group who knows
anything about your specific type of boundary.
YOU ARE THE EXPERT!! HELP YOUR CLASSMATES
LEARN!!**
9. Make this Chart!!
TECTONIC PLATE BOUNDARIES
BOUNDARY MEMORY
PICTURE EFFECTS
NAME TRICK
10. What Did You Learn?
• Check and correct your notes as I quickly
review them
• Be ready for me to call on you!
11. Divergent Boundary
• PICTURE: move away from each other
• Effects:
• -magma from mantle cools to create new crust
• -continents pull apart or the ocean floor spreads
• DIVERGENT boundaries DIVIDE
12.
13. Convergent Boundary
• PICTURE: two plates moving towards each
other
• EFFECTS: crust is pushed together and
destroyed
• -continents smash together
• -mountains are formed
• -CONVERGENT boundaries COLLIDE
14.
15. Transform Boundary
• PICTURE: two plates sliding past each other
• Effect:
• -plates scrape against each other
• -crust isn’t created or destroyed
• earthquakes happen
• MEMORY TRICK: -DJ TRANSFORM!
16.
17. Subduction Boundary
• PICTURE: two plates are moving towards each
other, the denser oceanic crust sinks under
continental crust
• EFFECTS:
• -oceanic crust and continental crust collide
• -more dense oceanic crust sinks under less dense
continental crust
• Subduction boundaries, oceanic plates Sink
42. HOT Q: The process of subduction tells us
something about the density of oceanic
crust compared to continental crust.
What can we say about to compare the
density of the two?
43. SUMMARIZER:
1. In your notebook draw a picture of all four
types of plate boundaries
2. Label each one
3. Write 1 EFFECT of each type of boundary
(you may use bullets—this does not need
to be in complete sentences!)