Everyday Science: Water Quiz

Estimated Completion Time
1 min
Everyday Science: Water Quiz
Image: Mark Lewis/Getty Images

About This Quiz

Water is quite arguably the most important substance on Earth. Its unique properties make it an incredibly versitile tool. Aside from fueling life, it's useful in cleaning, cooking and transportation, just to name a few things.
In a water molecule, how is the charge distributed?
negatively on the hydrogen side and positively on the oxygen side
positively on the hydrogen side and negatively on the oxygen side
Neither of the above; water is nonpolar and has an evenly distributed charge.
What percentage of the Earth's water supply is freshwater?
3 percent
15 percent
30 percent
Most of the Earth's freshwater is in:
lakes
man-made reservoirs
aquifers

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What percentage of the world's population doesn't have access to clean water?
2 percent
17 percent
38 percent
Oil is an example of a substance that is:
hydrophillic
hydrophobic
hydroponic
What property of water allows it to stick to itself?
coagulation
adhesion
cohesion

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In which step of the water cycle does liquid water transform into gas?
Evaporation
Condensation
Precipitation
Our bodies consist of what percent water?
20 percent
40 percent
60 percent
What property of water makes it bead up on waxy surfaces?
capillary action
universal solvency
surface tension

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What is the name of the first step in the water-purifying process during which particles clump together?
sedimentation
coagulation
aeration