Ozone
Using your ‘Safari” internet program, open to this website
http://www.ec.gc.ca/ozone/DOCS/KIDZONE/EN/guardearth.cfm
1. Name the group of chemicals used in refrigerators, air conditioners, insulators and
many other household products.
Name a group of chemicals used for fire protection (extinguishers).
2. What is the long name for CFC’s?
3. What did scientists discover in the 1980’s?
4. Describe the location of the ozone layer relative to earth.
5. What does it protect us from, and why is this important to life on earth?
6. What percentage of ozone is bad? Where does it come from?
7. Take the quiz on the website. What was your score _______________?
Continue reading on the website.
8. What two groups of chemicals are known to eat away the earth’s ozone layer?
9. These chemicals slowly travel up into the atmosphere. How long do scientists think
the chemicals stay up there?
10. How do scientists monitor the hole in the ozone layer?
11. What country is considered a world leader in protecting the ozone layer?
12.Why couldn’t we immediately stop using CFCs and halons when scientists discovered
that they were environmentally harmful?
13. Can CFCs be recycled?
14. Can the ozone layer mend? If so, how long will it take?
15. Name and discuss 4 ways you can help.
16. List several ways you can protect yourself.
Now get on this website http://www.factmonster.com/ipka/A0800624.html
17. What is the molecule Ozone made up of?
18. Describe ozone; how does ozone differ from oxygen?
19. Name 3 harmful affects of increased UV radiation due to ozone layer holes.
20. How/When do ozone layers vary naturally?
21. Why are CFCs more harmful than other chlorine sources?
22. What happens when CFCs are exposed to strong UV radiation in the stratosphere?
23.What is the proof that ozone depletion is not occurring naturally?
24. What is being done to protect the earth’s ozone layer?
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Revised 4/28/05