The document discusses several interesting facts about water molecules and their structure: - Water molecules are polar, with hydrogen atoms having a slight positive charge and oxygen having a slight negative charge. This allows water molecules to form hydrogen bonds with other water molecules. - A single water molecule can form up to four hydrogen bonds simultaneously. The ability of water to form these bonds gives it many unique properties. - Too much water consumption can cause a sodium imbalance in the blood known as hyponatremia. Most of the human body and planet are made up of water.

1. The Water Molecule http://homewaterdistiller.org/wp-content/uploads/2011/04/water1.jpg

3. 70% of an adult's body is water

4. Water dissolves more substances than any other liquidhttp://www.idswater.com/Common/header/Img-water.jpg

9. By the time a person feels thirsty, his/her body has lost over 1% of its total water amount.

10. The weight a person loses directly after intense physical activity is weight from water... not fat!http://surveywater.files.wordpress.com/2009/12/earth-water-tap-supply-thumb4824558.jpg

11. Molecular Structure When hydrogen and oxygen combine to form water, water is the PRODUCT. http://quantumfreak.com/wp-content/uploads/2008/10/hydrogen-oxygen-and-water.jpg

12. Molecular Structure The oxygen atom is on one end of the molecule & the hydrogen atoms are on the other end. The oxygen end of the molecule has a slight negative charge and the hydrogen end of the molecule has a slight positive charge. http://xnet.rrc.mb.ca/rcharney/The%20water%20molecule_files/molecul2.jpg

13. Why is the H2O Molecule Polar? A water molecule is polar because there is an uneven distribution of electrons between the oxygen & hydrogen atoms. http://www.school-for-champions.com/chemistry/images/polar_molecules-h2o.gif

14. Hydrogen Bonds Because of their partial (+) & (-) charges, polar molecules such as water can attract to each other. http://library.thinkquest.org/26153/habitat/images/molekule.gif

15. Hydrogen bonds are not as strong as covalent or ionic bonds, but water's ability to form multiple hydrogen bonds is responsible for many of its special properties. http://www.essenceoflife.com/images/science/figure1.gif

16. A single water molecule may be involved in as many as 4 hydrogen bonds at the same time.

17. Activity Demonstrating Hydrogen Bonding http://1.bp.blogspot.com/_Ztj2bLAAZH8/TNN2FHcyJxI/AAAAAAAAACY/LOSe85jg_xk/s1600/water+chemical+name.jpg

18. Vocabulary Review What is makes a water molecule POLAR? http://img.metro.co.uk/i/pix/2008/03/polarbearswimR_450x350.jpg

19. A polar molecule has an unequal distribution of electrons; the two ends of the molecule have opposite charges. http://www.sogmin.org/Newsletters/2011%20NLs/positive-negative.jpg