Properties of Water: A Reading Guide
Name: __________________________
Date: ________________ Pr: ________
Directions: Use pages 39-42 of the Holt Modern Biology Book to complete the following
reading guide. Be sure to write neatly.
1. How are jellyfish and humans alike? __________________________________________________
________________________________________________________________________________
2. Where do many of waters biological functions stem from? _________________________________
3. What type of bonds hold the Hydrogen and Oxygen atoms together in water? __________________
4. Why does the region of a water molecule where the Oxygen molecule is located have a partially
negative charge? ___________________________________________________________________
_________________________________________________________________________________
_________________________________________________________________________________
5. What charge does the Hydrogen region of a water molecule have? __________________
6. Draw figure 2-8 (b) being sure to include all labels and charges
7. Even though the total charge on a water molecule is ______________, the charge is
______________ distributed across the water molecule. Because of this uneven distribution of
_______________, water is called a ____________ compound.
8. The polar nature of water allows it to dissolve other _____________________________________.
9. Water does not dissolve ____________________________________ because ________________
_______________________________________________________________________________
_______________________________________________________________________________.
10. Water dissolves the ionic compound sodium chloride, NaCl. In your body, ions, such as sodium and
chloride, are essential to __________________________, such as _____________________________
and transmission of impulses in the nervous system.
11. The polar nature of water also causes it to be attracted to _______________________________.
12. The _____________________________ region of one molecule is attracted to the
____________________________ region of the other.
13. This attraction is called a _______________________________.
14. Define Hydrogen Bond: ______________________________________________________________
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15. Using figure 2-10, draw three water molecules bonding together with hydrogen bonds. Be sure to
label the water molecules with their correct charges and element symbols.
16. Using the information on pages 40-42 to complete the graphic organizer below
Property
What it does/means
Importance to life
__________________________________ ________________________________________
Cohesion
__________________________________ ________________________________________
__________________________________ ________________________________________
Adhesion
High Heat
Capacity
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__________________________________
________________________________________
________________________________________
________________________________________
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(specific heat)
Solvent