Moro Cojo Final Examination
Chemistry 1 |
| Please write briefly, and to
the best of your ability on the following questions. |
| 1. |
What are the attributes of (or define) an ecosystem?
|
| 2. |
What are at least six reasons wetlands are areas of national importance?
|
| 3. |
What are the attributes of (or define) a biogeochemical cycle?
|
| 4. |
Wetlands are frequently associated with especially smelly muds.
Please reflect on the kinds of chemistry involved in the production of
these odiferous compounds. Give a specific example of a reaction.
|
| 5. |
Briefly discuss the typical characteristics of wetland soils and the conditions that promote the formation of these characteristics.
|
| 6. |
What are six basic measures of water quality?
|
| 7. |
Briefly discuss why at least two of these attributes (measures) are important for human or ecosystem health.
|
| 8. |
Briefly describe at least five ways in which agricultural practices frequently influence water quality.
|
| 9. |
Why do nitrates and phosphates present a problem for ecosystems?
|
| 10. |
Why are nitrates associated with agriculture?
|
| 11. |
Describe the chemistry of nitrification and its relevance at the Slough .
|
| 12. |
Describe the chemistry of denitrification and its relevance at the Slough .
|
| 13. |
What are the attributes of (or define what is) an experiment?
|
| 14. |
In the context of an experiment, define treatment.
|
| 15. |
In the context of an experiment, define replicate.
|
| 16. |
Why do scientists replicate experiments? (What is the importance of replication in science?)
|
| 17. |
Reflect on a previous experience of conducting an experiment 9either in a science class or elsewhere in you life experience). Describe that previous experience briefly. What did you learn about the process of doing science from that experiment?
|
| 18. |
What do you think is the most difficult aspect of doing science? (If this question stumps you, come talk to me).
|
| 19. |
Below are a set of observations. On the back of this page develop a research question, hypothesis and design an experiment to test your hypothesis regarding the observations. Describe your experiment in enough detail that a stranger could understand what you did (many people fall way short here-so be sure to give enough detail!). Label your question, hypothesis, experimental group, control group, independent variable, control variables, replicates, and treatments.
|
For 5 points extra credit (-2 if you do not try), run your hypothetical experiment. Graph your data, and briefly discuss your results and what you can conclude from your data.
|
