10/21/13 40th Day of School Learning goal (7.E.1.6): I will be able to list natural sources of air pollution and describe human activities contribute to.

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10/21/13 40th Day of School Learning goal (7.E.1.6): I will be able to list natural sources of air pollution and describe human activities contribute to air pollution. Due Today: Weather test (if you missed Friday) Evening Assignment: Finish Air Pollution brochure

Week Assignments Copy the assignments for the week into your agenda from Dr. Batten’s webpage.

Explore Air Quality 1. Which town has the highest Air Quality Index (AQI) forecasted for today? 2. Why?

Explore Air Quality 1. Which town has the highest Air Quality Index (AQI) forecasted for today? Cowtown, AZ AQI of Why? Cowtown is near Phoenix (lots of traffic). They have had warm temps (~90F), high pressure, and little wind so pollutants accumulate.

Key Vocabulary Use the Internet to help you come up with a definition for the following terms. You should add these definitions to your Air Pollution brochure “Sources of Air Pollution” panel. What would be good examples of each? Point source pollution Nonpoint source pollution

Key Vocabulary Use the Internet to help you come up with a definition for the following terms. You should add these definitions to your Air Pollution brochure “Sources of Air Pollution” panel. What would be good examples of each? Point source pollution comes from a specific identifiable source (pipe, factory, wastewater treatment plant) Nonpoint source pollution comes from unidentifiable or multiple sources (cars, many factories, farmland run off)

Ozone Ozone is good in the stratosphere but bad in the troposphere. Human activities affect both types.

Textbook Resources McDougall, p.A32 Human activities produce chemicals that destroy the ozone layer. CFCs Some natural processes put chlorine into the stratosphere, but about 85 percent of the chlorine there comes from human activity. Chemicals called chlorofluorocarbons (KLAWR-oh-FLUR-oh- KAHR-buhnz) have been manufactured for use in cooling systems, spray cans, and foam for packaging. These chemicals break down in the stratosphere and release chlorine and other ozone-destroying chemicals.

Human Activities affect the atmosphere Create a 6-sided brochure about air pollution. Due by Tuesday at the beginning of class. Include the following topics: Title, name, core, and date Human activity can cause air pollution Types & sources of air pollution Effects of air pollution Air Pollution affects the ozone layer Ways to reduce air pollution Use pages A27 - A33

Evening Assignment Finish air pollution brochure