science vocab.
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 time.
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| Pangaea | one big supercontinent
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| fossil | any trace of an ancient organism that has been preserved in rock.
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| mid-ocean ridge | mountain ranges in the middle of some ocean floors.
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| sea-floor spreading | when mid-ocean ridges continually add new material to the ocean floor.
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| deep-ocean trench | deep underwater canyons.
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| plates | when Earth's lithosphere is broken into pieces separated by cracks.
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| divergent boundary | plates move apart.
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| convergent boundary | plates come together
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| transform boundary | plates slip past each other
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| plate tectonics | plate motions in a single theory.
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| faults | breaks in Earth's crust where rocks have slipped past each other.
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| rift valley | a deep valley
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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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