Tuesday, March 3, 2009 Objective: Students will be able to identify the types of fossils and how they are formed. Bellringer: QUIZ.

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Tuesday, March 3, 2009 Objective: Students will be able to identify the types of fossils and how they are formed. Bellringer: QUIZ

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Tuesday, March 3, 2009 Objective: Students will be able to identify the types of fossils and how they are formed. Bellringer: QUIZ

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Tuesday, March 3, 2009 last chance to view BR - 1 min Objective: Students will be able to identify the types of fossils and how they are formed. Bellringer: QUIZ

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Turn In Quizzes!!!

VOCABULARY REVIEW 1.Fossil 2.Plate Tectonics 3.Paleontologist 4.Relative dating 5.Radiometric dating 6.Extinct 7.Geologic Time Scale 8.Pangaea 9.Continent 10.Country A.Theory that explains how continents move B.Estimated date based on location of fossil C.Entire species died off D.The original “super continent” E.Evidence of organism that lived a long time ago F.landmass G.Political regime H.Puts palenotological events in order I.Dating process using isotopes J.One who studies ancient organisms

Scientists believe Earth formed 4.6 Billion Years ago.

Inner Earth

Plate Movement

Continental Drift

Currently….

7 Continents 1.Antarctica 2.Australia 3.Africa 4.Asia 5.Europe 6.North America 7.South America

5 Ways to become Fossilized: 1.Permineralization & Petrification – organic tissues are replaced with minerals from the surrounding rock, including silica, calcite or pyrite. 2.Unaltered preservation - organism is preserved in its original state (example: trapped in tree sap) 3.Carbonization (Coalification) - removal of all but the carbon elements (hydrogen, oxygen, and nitrogen are removed) 4.Trace & Molds - These fossils are the molds and casts of organisms which have dissolved or rotted away, leaving only a trace of their existence. 5.Recrystalization - crystals form within the original structure, replacing it, resulting in a crystallized copy.

March 3, 2009 AGENDA: 1 – Take Sect Quiz 2 – Review Quiz 3 – Powerpoint Presentation 4 – Review Key Topics HOMEWORK Worksheets (2): 1 – The Earth’s Interior 2 – Earth’s Plates