# Plate Tectonics YouTube: Continental Drift: Alfred Wegener Song 3:03.

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Plate Tectonics YouTube: Continental Drift: Alfred Wegener Song 3:03

YouTube: Early Earth and Plate Tectonics
5:16 Tectonic Plates Large broken pieces of the earth’s crust (lithosphere) that collide or slide past each other atop the asthenosphere

Pangaea Current theory suggests that all of Earth’s continents were once combined to form a single landmass we call Pangaea YouTube: Bill Nye Pangaea 2:25

Alfred Wegener Alfred Wegener was a German scientist who formed the Theory of Plate Tectonics and proposed the idea of continental drift This theory states that Earth is broken into several plates that are constantly moving and drifting, resulting in changes to the earth YouTube: Alfred Wegener: Great Minds 4:54

Theories, Laws, and Facts!
Scientific Theory – Explains a complex idea and is supported by evidence Ex: Theory of Plate Tectonics Scientific Law – Describes an observed phenomenon and is supported by evidence from multiple experiments, but does not explain how or why Newton’s Law of Gravity or Laws of Motion Scientific Fact – Accepted as being true, measurable and observable Water freezes at 0 degrees Celsius; Earth has one moon

Name That Plate! 126 Name That Plate! Notes Leave space at the top of your page for today’s notes. Draw a table on your notebook page just like the one shown on the right. (Hint: Place your numbers on the left side of the red line.) Title the first column “Prediction”. Title the second column “Answer”. Prediction Answer 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Types of Tectonic Plates
Continental Plate – A thicker (fatter) plate containing continental crust (a continent exists on top) Oceanic Plate – A thinner (skinnier) plate containing only oceanic crust (covered entirely by ocean water)

1 = Yellow 2 = Brown 3 = Purple 4 = Green 5 = Orange 6 = Blue 7 = Red 8 = Brown 9 = Blue 10 = Green 11 = Brown 12 = Red 13 = Green 14 = Yellow 15 = Blue

Name That Plate! KEY Pacific Plate North American Plate
South American Plate Eurasian Plate African Plate Antarctic Plate Australian Plate Indian Plate Juan de Fuca Plate Nazca Plate Filipino Plate Caribbean Plate Scotia Plate Arabian Plate Cocos Plate Name That Plate Interactive Quiz – Learner.org

Name That Plate! KEY Pacific Plate North American Plate
South American Plate Eurasian Plate African Plate Antarctic Plate Australian Plate Indian Plate Juan de Fuca Plate Nazca Plate Filipino Plate Caribbean Plate Scotia Plate Arabian Plate Cocos Plate Name That Plate Interactive Quiz – Learner.org

3 Types of Plate Boundaries
Divergent – Plates move away or spread apart Convergent – Plates come together Transform – Plates slide past each other in opposite directions Divergent Convergent Transform

Divergent Boundaries New crust is formed as plate spread apart
Divergent Animation Divergent Boundaries New crust is formed as plate spread apart This process is called seafloor spreading and creates mid-ocean ridges in the ocean basin

Convergent Boundaries
Convergent Animation Convergent Boundaries Crust is destroyed and recycled back into the mantle This movement creates volcanoes, mountains, trenches, and earthquakes

Convergent Boundaries
Convergent Animation Convergent Boundaries Some plates get pushed together and one plate is subducted under the other This area of the boundary is called the subduction zone Some plates get pushed together and both fold up to form folded mountains

Transform Animation Transform Boundaries Plates slide past and against each other in opposite directions This creates earthquakes and fault lines