Section 2: Land, Air, and Water
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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| plate | a huge block of Earth's crust
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| weathering | a process that breaks down rocks into small pieces
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| Things that cuase weathering | ice, wind, rain, living things (lichens)
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| Ring of Fire | Around the rim of the Pacific Ocean where there is a string of volcanoes and earthquakes. 80% of the world's active volcanoes and earthquakes occur at this ring.
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| atmosphere | The layer of gases, including oxygen, that surrounds our Earth. It is needed for life to exist here.
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| more than 70% | This is the amount of the Earth that is water; lakes, rivers, seas, oceans.
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| landforms | Shapes and types of land
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| mountains | Rise more than 2,00 ft (610 meters)above sea level or the surrounding flat lands.
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| hills | Rounded tops that rise above sea level but are lower and less steep than mountains.
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| plateau | Large mostly flat area that rises above its surrounding land. At least one side has a steep slope.
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| plains | Large areas of flat or gently rolling land.
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| magma | Molten rock that pushes up to form volcanoes
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| earthquakes | This is created when blocks of crust, or plates, slide sideways against each other.
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| volcano | This is formed when an ocean crust collides with a continental crust and the ocean crust goes under and melts into magma.
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| faults | Cracks that are formed when two plates push against each other, break and splinter because of the pressure.
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| Pangaea | The huge continent that geographers think the Earth was 200 million years ago.
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| erosion | This happens after weathering, when the small broken down pieces are removed by wind, ice or water.
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| Earth's three main layers | crust, mantle, core
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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.
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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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Created by:
Adamsthornell
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