1.  Answer the following about plate boundaries:  1.A boundary where two plates are moving apart is called____________  2.A boundary where two plates are colliding is called ________________  3. A boundary where two plates are sliding past one another is_____________.

2.  Using whiteboards answer the following questions:  1.How is the water in a swimming pool similar to the Earth’s interior?  2.How is it different?  3. How does a Lava Lamp work?

4.  If you were able to tunnel to the center of the earth just like diving into a pool you would find changes in the following:  Pressure  Temperature  Density

5.  Pressure: the amount of force acting on an area.  The further down into the Earth you go, the GREATER the pressure.  WHY?  Because of the weight of the rock above, pressure increases.

6.  TEMPERATURE: The measurement of the amount of kinetic energy a substance has.  As you first start tunneling down, rock is cool. After about 20.0 meters (not even one mile), temperature begins to increase rapidly.

7.  DENSITY: the amount of matter in a specific volume.  The further into earths interior you go, the denser the earth becomes.  The lava lamp works due to DENSITY changes – the warm wax rises to top, cools and sinks – called CONVECTION CURRENTS.

9.  Continental  Continents located on it  Less Dense  Very thick because of mountain ranges  Lithosphere: The crust and the top-most part of the MANTLE. This is SOLID!  Oceanic  Located at the bottom of the oceans (sea floor)  More Dense  Thin

10.  In 1912 he came up with the theory of Continental Drift  Meteorologist

11.  Edges of the continents fit like puzzle pieces  Ex South America and Africa

12. Fossils Mesosaurus (a fresh water/land animal) found in both S. America and Africa

13. Rock types line up –Mountain ranges and mineral belts. –Similar rocks found in New Jersey and Scottish Highlands

14. Paleoclimate –Evidence of Ice Sheets were found covering parts of S. America, Africa, India, and Australia –Coral reefs found in Northern Canada –Coal formation in North America

15.  Shape of the continents  Ex South America and Africa  Erosion may have changed the shape of the continents  Best fit occurs along the continental slope  Rock types line up  Mountain ranges and mineral belts  Fossils  Paleoclimate  Evidence of Glaciers (striations)

16. classzone.com Pangaea pan = all gaia = earth

18. Continental Drift Theory The continents were once connected as one large land mass and they slowly drifted to their current positions.  Earth’s lithosphere is divided into sections called plates.  These plates move slowly over time.  This movement results in many of Earth’s physical features and events.

19.  Scientists did not accept his theory because he was missing key evidence.  Such as: HOW DID THE CONTINENTS MOVE?

20.  Convection currents in the mantle provide the forces that drive plate’s motion