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Tuesday 11/5/13

Objective : SWBAT describe the various types of water pollution and distinguish between point and nonpoint sources of pollution. Do Now : What is BOD and what happens when it becomes too high?. Tuesday 11/5/13. Agenda : Point vs. Nonpoint Sources Pollutant Jigsaw Pollutant Relay Race

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Tuesday 11/5/13

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  1. Objective: SWBAT describe the various types of water pollutionand distinguish between point and nonpoint sources of pollution. Do Now: What is BOD and what happens when it becomes too high? Tuesday 11/5/13 Agenda: • Point vs. Nonpoint Sources • Pollutant Jigsaw • Pollutant Relay Race Life’s Work: Read chapter 13 and study for quiz on Thursday Week at a Glance:Unit 5 – Water Pollution

  2. What’s in the Water? Water Pollution Sources Water pollution is any chemical, biological, or physical change in water quality that has a harmful effect on living organisms or makes water unsuitable for desired uses. • Point source: specific location (drain pipes, ditches, sewer lines). • Nonpoint source: cannot be traced to a single site of discharge (atmospheric deposition, agricultural/industrial/residential runoff)

  3. Point Source Pollution • Water pollution that can be traced to a specific spot (such as a factory or sewage treatment plant) because it is discharged into the environment through pipes, sewers or ditches.

  4. Non-Point Source Pollution • Pollutants that cannot be traced to one single source or location (Ex: Agricultural fertilizer runoff and sediments from construction)

  5. Point or Non-Point Source?On your Guided Notes, designate each with a “P” or “NP.” #1: Drainpipe from a chemical factory

  6. Point or Non-Point Source?On your Guided Notes, designate each with a “P” or “NP.” #2: Animal waste runoff from a cattle feedlot

  7. Point or Non-Point Source?On your Guided Notes, designate each with a “P” or “NP.” #3: Air Pollution from Cabs in NYC

  8. Point or Non-Point Source?On your Guided Notes, designate each with a “P” or “NP.” #4: Smokestacks from Sugar Factory in Florida

  9. Why Does it Matter? • Point sources of pollution are much easier to track down, prevent, and fix than nonpoint sources. • Nonpoint sources often involve more complex factors: politics, religion, lack of awareness, etc.

  10. Pollutant Jigsaw Activity • You will be given a class set notecard with information about a specific type of pollutant. • On your foldable, write: • Share out with your group. NAME OF POLLUTANT (and definition, if applicable) EFFECTS CAUSES

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