
The Hydrosphere Flashcard
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a water molecule composed of?
Back
A water molecule is composed of two hydrogen atoms and one oxygen atom.
2.
FLASHCARD QUESTION
Front
Why is a water molecule considered polar?
Back
A water molecule is considered polar because it has a slightly positive end (hydrogens) and a slightly negative end (oxygen).
3.
FLASHCARD QUESTION
Front
Where is most of the Earth's water found?
Back
Most of the Earth's water is found in the oceans.
4.
FLASHCARD QUESTION
Front
What is an example of a non-point source of pollution?
Back
An example of a non-point source of pollution is fertilizer runoff from lawns.
5.
FLASHCARD QUESTION
Front
What term describes water's ability to dissolve many substances?
Back
Water is called the 'Universal solvent' because it can dissolve many substances.
6.
FLASHCARD QUESTION
Front
What is the significance of the polar nature of water?
Back
The polar nature of water allows it to form hydrogen bonds, which are crucial for many biological processes.
7.
FLASHCARD QUESTION
Front
What is capillary action?
Back
Capillary action is the ability of water to flow in narrow spaces without the assistance of external forces, important for plant water uptake.
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