Day+38+Water+&+pH

Daily Agenda: 1. Warm up - 15 minutes 2. Notes: Properties of Water & pH - 20 minutes 3. Properties of Water Lab - 30 minutes 4. Water WebQuest - 25 minutes

Objective: 2.01 Compare and contrast the structure and functions of the following organic molecules:
 * Carbohydrates
 * Proteins
 * Lipids
 * Nucleic Acids

Water Web Quest Complete TWO of the following. Write your answers on a sheet of notebook paper. If you have time to do more, they will be counted as extra credit.

A. Chemistry of Water—suggested website: @http://www.biology.arizona.edu/biochemistry/tutorials/chemistry/page3.html 1. What elements make up water? How are those atoms bonded together? 2. What type of bond helps attract water molecules? 3. Why is water described as polar? 4. How does the polarity of water help dissolve solids? 5. How does water interact with non-polar substances?

 B. Properties of Water—suggested website: @http://www.uni.edu/~iowawet/H2OProperties.html 1. What are the states of water? How does it describe the arrangement of water molecules? 2. What is adhesion? How does it occur? Provide an example. 3. What is cohesion? How does it occur? Provide an example. 4. How are adhesion and cohesion different? Why are these important properties? 5. Describe surface tension. 6. Describe capillary action. Why is capillary action extremely important for plants?

 C. Human Importance—suggested website: @http://www.freedrinkingwater.com/water-education/water-health.htm 1. How much water should a person, on average drink a day? Why is this important? 2. When should a person consume more than the recommended amount? 3. What important roles does water serve for the human body? 4. Can water prevent disease? 5. How can water help the quality of your skin? 6. If you drink water, do you need to take vitamins?

D. Quality of Water—suggested website:__ @http://www.environment.nsw.gov.au/water/waterqual.htm  1. Why is water quality important? 2. What affects the quality of our water? 3. How can poor water quality affect humans? 4. How is water quality measured? 5. How does water quality affect water environments? 6. How is water treated?