Plate-Doh Plate Tectonics #24 in Geology Binder
What landforms are created by the motion of the lithospheric plates? Essential Question #3
Last week… • We defined “plate boundary” as the place where two lithospheric plates meet. • We discussed what happens at the three types of plate boundaries. • We created a color coded map showing the locations of each type of plate boundary.
OVERVIEW Goal: To create models of landforms that are created at convergent plate boundaries. DAY ONE: Construct two sides of a lithospheric plate boundary with your table. DAY TWO: Draw a scale model of your plate boundary and label all features. DAY THREE: Use notes and book to predict what features will be created at this convergence. DAY FOUR: Create a model of these new features.
Creating your Lithospheric Plate DAY ONE
First… • Write your code, date, period, and #24 in upper right hand corner of your paper. • Label this assignment “Play-Doh Tectonics” • Make a key at the top of your paper. List the Play-Doh colors and what each color will represent. • PINK= upper mantle= peridotite • BLUE= oceanic crust = basalt/gabbro • GREEN= continental crust = granite
With your table… • 1.) ♥ will obtain all supplies needed from Table 1 (by the door). • 2.) ♣ will use scissors to cut your square plate into two rectangles. • 3.) ♥ will pair with ♠, ♣ will pair with ♦. • 4.) With your partner, create a model of a plate! • 5.) At end of period, ♦ will return all supplies to Table 1 and ♠ will carry play doh plates to the cubby.
With your partner… • ♠ / ♦ will create the upper mantle by covering the cardboard with pink Play Doh. • ♣ / ♥ Add one flat continent (using green) over top of the upper mantle. It does not have to be in the middle of the plate! • ♠ / ♦ Surround the continent with a thin layer of oceanic crust (blue). Oceanic and continental crust cannot overlap. • ♣ / ♥ Add mountain(s) to the continent, and a few tiny (!) seamounts or tiny (!) mid-ocean ridges to the ocean. • **If time permits, begin (individually) creating scale model drawings of these plates (actual size!)
Today… • 1.) ♠ will go to cubby to get plates. • 2.) At your table, put the plates together and decide where the “top” will be. • 3.) Create a scale drawing. • Take turns tracing BOTH plates, as they would fit together, leaving a gap between them. • Label any geographic/geologic features and color your plates using colored pencils and your key. (**Color your plate first, then trade with the other side of the table. **) • 4.) ♣ will put plates back in cubby.
Label the different types of convergent plate boundary… • Label the parts of the line that are made with oceanic crust, and the parts with continental crust. Use “C” or “O”. • Using a ruler, separate all the different types of convergent plate boundary. • O/O = Oceanic crust meets Oceanic crust • C/C = Continental crust meets continental • O/C or C/O = Continental meets oceanic (or vice versa)
Converging your Lithospheric Plate DAY THREE
Let’s label each type of convergent plate boundary with the possible outcomes…
Millions of years have passed… • Imagine that you are hiking along your convergent plate boundary (North to South). • Write a paragraph describing what types of convergent boundaries you encounter and what types of landforms you see at each. • Use p34-35, #23, and #24. • Draw and label a picture that supports this paragraph.
Staple all of your #24 together (key, drawing, notes, paragraph, and NEW drawing)and pass to the front.