 Identify and label the different continents on your map.  North America  South America  Africa  Europe  Asia/India  Australia  Antarctica

 Take 2 minutes to observe the world map.  Make 2 observations about the continents’ coast lines.  Make 1 inference based on your observation End

 Take 3 minutes and work with your partner to try and fit the continent puzzle pieces together. End

 Do they fit together perfectly?  What may have caused the coastlines to change over time?  Come up with 2 possible reasons (2 minutes) End

 Look at the small pictures on your puzzle pieces.  Those are fossils found in those areas of each continent.  Take 2 minutes to observe the fossil placement.  Make 2 observations  Make 1 inference End

 Rearrange your puzzle so that all of the fossil segments line up. (2 minutes) End

 Take 3 minutes to draw in dots along the plate boundaries to show recent earthquakes. (large dots = more activity, small dots = less activity) End

 Take 2 minutes to draw in triangles to show volcanic activity. End

 Take 2 minutes to observe the marks you just made on your map.  Make 2 observations  Make 1 inference End

1. Which type of dating would you use to find the age of an ancient basket made of natural fibers? Why? 2. The element Chaparralium has a half-life of 24,000 years. If a fossil contains.195% of the original amount of Chaparralium, how many half lives have passed? How old is this fossil? Show your work!

 Alfred Wegner  Concept with no mechanism

1. The continents fit together. 2. Fossils of the same organisms are found along the coasts of different continents.

 Supercontinent  300 million years ago  Cycle

 Scientific theory (concept + mechanism)  Lithosphere is broken up into “tectonic plates”  Moved by convection of asthenosphere  Past plates and current plates  How do we know?  How many?  Farallon Plate

3. Seismic, volcanic, and geothermal activity along plate boundaries.

4. Sea Floor Spreading  Mid-ocean ridges  Tectonic plates moving separating  New magma rises  Form new oceanic crust  Older crust pushed away

5. Magnetic Reversals  Molten rock  Magnetic minerals  Align with magnetic field  Magnetic field reverses  177 times in 85 million years  Last 600,000 years ago  Recorded in rock  Similar pattern to age of rocks

 Convection  Asthenosphere  Heated rock  Expands and rises  Cools  More dense

1. Spreading  New material pushed up at ridges  Pushes older material away 2. Subduction  Denser plate sinks  Pulls rest of plate 2 main types of movement