1. Spreading of Pollution  Catalyst  Which pollutant causes depletion of the ozone layer? What is one negative effect of ozone layer depletion?  Which pollutant causes acid rain? What is one negative effect of acid rain?  Which pollutant is contained in agricultural runoff? What is one negative effect of agricultural runoff? Write in complete sentences! Don’t talk during the Catalyst!

2. Objectives By the end of today, all SWBAT...  Explain how pollution in one area (air, land, or water) negatively affects life in the other two  Explain why we must keep our air, water, AND land pollution-free

3. Agenda  Catalyst Review  Quiz Mastery  Quiz Review – Questions 7 and 14  Pollution Spreads: Key Points  Stations  Mini-project  Exit Question

4. SE 6: Ozone depletion and acid rain 563.3

5. SE 7: Illustrate the flow of nitrogen 573.0

6. SE 12: Describe how pollution affects selected populations 568.0

7. Pollution Quiz Average 568.1

8. Overall Mastery for All Units 580.36

9. Quiz Review – Questions 7 & 14

10. Pollution Spreads  Broadly speaking, pollution occurs in three areas: air, land, water  Key Point #1: Pollution in one location (air, land, or water) often negatively affects life in the other two locations  All life is tied together! Air pollution may affect life in water and on land Land pollution may affect life in water and air Water pollution may affect life on land and in air

11. Why?  Remember: as biodiversity decreases, food webs become less stable  Organisms in air, water, and land all depend on each other for food  If enough organisms die, the food web will collapse  Pollution produces BIG environmental changes  If temperature increases (global warming), life is affected EVERYWHERE  The same goes for increased UV radiation (ozone depletion), changes in pH (acid rain), etc.

12. The Point  Key Point #2: In order to protect life on Earth, we have to keep our land, water, AND air pollution-free  It does no good to clean up pollution in one area without cleaning up the others  Pollution spreads from one area to the others!

13. Don’t Believe Me?  Six stations, five minutes at each station  Biodiversity  Global warming  Ozone depletion  Acid rain  Agricultural runoff  Big Picture

14. Compare Answers  You have 7 minutes to…  Discuss answers in groups  Change any that you got wrong  I will collect one person’s answers at random to grade  The entire group will earn that grade  Make sure that your group-mates’ answers are correct!

15. Mini-Project

16. Exit Questions  Pollution can occur in three locations: air, water, land.  Describe an example of how pollution in one of these locations can negatively affect the other two.  Based on your answer to the previous question, WHY is it necessary for humans to keep air, water, and land pollution-free? Write in complete sentences! Don’t talk during the Exit Question!