Vocab
Help!
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| What change in the ecosystem can cause many animals to die and lose their homes? | Fire
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| How can you keep water clean? | Do not dump wastes into lakes and rivers
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| Clean Water Act | a law that requires states to clean polluted waters to prevent further water pollution
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| Overpopulation | Too many of one kind of living thing
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| What do cars and factories cause? | air pollution
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| What resource can never run out? | sunlight
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| Smog | this happens when waste gases combine with water in the air
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| What problem affects Earth's air, water and land? | pollution
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| acid rain | this occurs when acids mix with water in the air and then fall to Earth
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| drought | a long period of time with little or no precipitation
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| Clean Air Act | a law that sets limits of different kinds of air pollution
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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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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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Created by:
Schoeneck 4th Grade
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