Download Integrated Science Name Cycles and Disasters – Internet Activity Go

Integrated Science
Name ______________________________________________
Cycles and Disasters – Internet Activity
Go to my Links p. 4, select: Cycles – Carbon Oxygen Nitrogen
http://www.realtrees4kids.org/sixeight/cycles.htm
The Carbon Cycle
1. What does the word “biogeochemical” describe?
2. Name 3 places/things where we can find carbon.
3. Describe photosynthesis.
4. Besides respiration, how else can carbon make it into the air (atmosphere)?
The Nitrogen Cycle
5. Name 3 places free nitrogen is found.
6. What organisms are able to use (or “fix”) nitrogen so other organisms can use it?
7. Where are these organisms (in #6 above) found?
8. Name 3 nitrogen compounds in the soil. See diagram.
9. What type of bacteria return nitrogen gas to the air (and keep the nitrogen level in
the soil balanced)? Name it!
The Oxygen Cycle
10. What percentage of our atmosphere is oxygen gas? _______________
11. Where does the oxygen in our atmosphere come from? Describe the process.
12. Oxygen is used in the process of ___________________________.
Go back to my Links p. 4, select Cycles in Nature – Themepark
http://www.uen.org/themepark/cycles/nature.shtml
Click on Energy Cycles (2nd link in left hand margin)
13. What is source of ALL life on Earth? _________________
14. In what do we find “stockpiles” of this energy?
Go to www.google.com
Type in “List of environmental disasters” Select the “List of Environmental Disasters” in
Wikipedia.
Under Agricultural, select the Great Sparrow Campaign.
15. WHY did the Chinese want to exterminate sparrows?
16. Describe what happened as a result of this campaign.
17. How many people died because of the ecological imbalance? ___________________
Go back to the List (in Wikipedia). Select at least ONE more disaster, more if time permits.
18. Disaster: __________________________________ under which Category? _____________________
Brief description of what caused the disaster, and why it is called a “disaster.”
19. Disaster: __________________________________ under which Category? _____________________
Brief description of what caused the disaster, and why it is called a “disaster.”
20. Disaster: __________________________________ under which Category? _____________________
Brief description of what caused the disaster, and why it is called a “disaster.”
BONUS: Play the Carbon Cycle Game: (p. 4 Links)
http://www.windows2universe.org/earth/climate/carbon_cycle.html
Tell me something that you did/found out/surprised you, etc.