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10 Cards in this Set
- Front
- Back
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Which of the following techniques would be appropriate for just separating macroscopic (large) particles in a mixture?
*separation *filtration *adsorption *distillation |
filtration
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Which technique relies on differences in solubility?
*separation *filtration *adsorption *distillation |
separation
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A separation technique that depends on differences in the boiling points of the substances in a solution is called:
*separation *filtration *adsorption *distillation |
distillation
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The hydrologic cycle is responsible for all of the following except
*providing a constant supply of fresh water *erosion of rock and soil *formation of clouds and precipitation *increasing the mineral content on oars |
increasing the mineral content in oars
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Which of the following is not a direct water use?
*water used to make a powdered drink *water used to grow a fruit tree *flushing a toilet *eating a moist apple |
water used to grow a fruit tree
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Which of the following statements is not true regarding the hydrologic cycle?
*the two major steps of the cycle are evaporation and flocculation *due to this cycle, the world has contained about the same amount of water for millions of years *this cycle is the world's self-recycling system for water *the cycle helps to provide the purest natural water found on earth |
the two major steps of the cycle are evaporation and flocculation
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Most of the earth's supply of water is found in
*rivers *oceans *glaciers *water vapor |
oceans, 97% of the earth's water is found in oceans
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Which of the following correctly reflects the decreasing order of abundance of water supplies:
*oceans-glaciers-icecaps0groundwater-lakes-atmosphere *glaciers-icecaps-oceans-rivers-groundwater-lakes-atmosphere *oceans-atmosphere-glaciers-icecaps-rivers-lakes-groundwater *none of the above |
oceans-glaciers-icecaps0groundwater-lakes-atmosphere
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Which is the best example of indirect water use?
*325 L of water are consumed by citizens daily *a shower uses 19 L of water daily *my water bill is $485 per month *120 L are required to produce a 1.3 L juice can |
120 L are required to produce a 1.3 L juice can, the unseen water used to make products is indirect water use
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Which is the correct ranking for density of water, in increasing order?
*gas, solid, liquid *gas, liquid, solid *solid, gas, liquid liquid, gas, solid |
gas, solid, liquid- water vapor is least dense , ice is less dense than water and the liquid of water is its densest form
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