Chapter 3 Review
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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| continental drift | Wegener's idea that the continents slowly moved over Earth's surface.
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| Pangaea | A supercontinent that Wegener named.
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| fossil | Any trace of an ancient organism that has been preserved in rock.
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| mid-ocean ridge | Form large chains of mountains that rise up from the ocean floor.
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| sea-floor spreading | Adds more crust to the ocean floor. At the same time older strips of rock move outward form either side of the ridge.
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| deep-ocean trenches | In a process taking tens of millions of years, part of the ocean floor sinks back into the mantle at deep-ocean trenches.
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| subduction | the process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle again.
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| divergent boundary | where plates move apart from each other
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| convergent boundary | where plates come together and COLLIDE (with no big explosions to watch D;)
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| transform boundary | where plates slip past each other
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| plate tectonics | the theory of pate tectonics states that Earth's plates are in slow, constant motion, driven by convection currents in the mantle
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| fault | breaks in Earth's crust where rocks have slipped past each other
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| rift valley | where pieces of Earth's crust diverge on land
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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