What is the main reason ice floats on liquid water?
Properties of Water

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•
Biology
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
As water freezes, it crystalizes and expands, decreasing its density.
2.
FLASHCARD QUESTION
Front
What is a polar molecule?
Back
A molecule with electrically charged areas, such as water.
3.
FLASHCARD QUESTION
Front
Which end of a water molecule has a slightly positive charge?
Back
The hydrogen end.
4.
FLASHCARD QUESTION
Front
How does the low density of frozen water benefit aquatic life?
Back
It provides insulation for organisms below the ice.
5.
FLASHCARD QUESTION
Front
What is the significance of pH in biological systems?
Back
Enzymes only function within a narrow range of pH.
6.
FLASHCARD QUESTION
Front
What happens to water when it freezes?
Back
It expands and forms a crystalline structure.
7.
FLASHCARD QUESTION
Front
Why is water considered a universal solvent?
Back
It can dissolve many substances due to its polarity.
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