(7th) Chapter 8-4 Cornell Notes

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Presentation transcript:

(7th) Chapter 8-4 Cornell Notes Movement of Earth’s Plates (7th) Chapter 8-4 Cornell Notes

Chapter 8-4 Key Questions How does the theory of plate tectonics explain the movement of Earths landmasses? How has the movement of Earth’s plates affected organisms?

Chapter 8-4 Key Terms plate- theory of plate tectonics- continental drift-

Chapter 8-4 Paragraph 1 crust: Earth’s rocky outer layer; consists of dozen+ major pieces called plates ; doesn‘t always follow continental boundaries; some under ocean or may have both ocean/continents.

Chapter 8-4: Performance Task Performance Task: Please turn to your partner and describe the difference between a “continent and a tectonic plate”.

theory of plate tectonics: Earth’s plates move slowly/various directions; may “pull away”, “push toward”, or “slide by”; theory states that plates move so continents move; continental drift: slow movement of continents. Chapter 8-4 Paragraph 2

Chapter 8-4: Question The Theory of Plate Tectonics states that: 1. Earth’s plates move quickly much like the rotation of the planets. 2. Earth’s plates move slowly each year traveling in various directions. 3. Earth’s plates move slowly in one direction: counter-clockwise.

Chapter 8-4 Paragraph 3 movement of plates/continents affected evolution; location of organisms changes; change in location = change in climate; climate enormous influence on species development.

Question: Which of the following is a result of the movement of tectonic plates and the continents (2 answers)? Chapter 8-4: Question 1. Change in location. 2. Change in climate. 3. Change in mutation effects. 4. Change in water levels.

Chapter 8-4 Paragraph 4 Brachiosaurus fossils found on various continents; therefore continents must have once been joined.

Chapter 8-4 Paragraph 5 continental drift also affects organisms today; with separation comes change in DNA makeup; eventually become different species.