Science p. 144-164
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| How much of the Earth's crust do the continents make up? | 29-35%
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| Name the 7 continents. | Africa, Antarctica, Australia, Europe, North America, South America
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| Name the 5 major oceans | Arctic, Atlantic, Indian, Pacific, Southern
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| What discovery did Wegener make that supported the theory of Continental Drift? | Identical fossils were found on the coasts of South America and Africa
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| What is the theory of Continental Drift? | The theory that the continents can move apart from each other and have done so in the past
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| What is tectonics? | The study of the movement and changes in the Earth's crust
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| What is plate tectonics? | The lithosphere (crust) is divided into plates that float and move on the athenosphere (upper mantle)
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| What is a convection current? | The flow of hot fluid in a circular pattern
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| What is a plate boundary? | The point at which two plates touch each other
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| What is a trench? | A deep underwater valley
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| What is stress? | A force that causes the Earth's crust to change shape and/or volume
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| Which type of boundary is the place where two plates meet and push together? | Convergent boundary
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| Which type of boundary is the place where two plates pull apart? | Divergent boundary
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| Which type of boundary is the place where two plates slide past each other horizontally? | Transform boundary
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| Which type of boundary has compressional stress? | Convergent boundary
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| Which type of boundary has tensional stress? | Divergent boundary
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| Which type of boundary has shearing stress? | Transform boundary
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| What discovery did Morley, Vine, and Matthews make that supported the theory of continental drift? | The magnetic poles in the rocks on different continents were constantly changing
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