Below is the list of learning objectives for the aquatics section.  If you want to test your knowledge, you can click on the Matching or Quiz buttons to take interactive quizzes based on past Envirothon tests.  If you want to study, the underlined terms below are links to professional sites with information on the underlined topics.  You may want to bookmark this page so you can return to it easily.  

                                              

1. Identify regional aquatic organisms including their anatomy and physiology.

2. Describe the life cycle of an aquatic organism

3. Explain various aquatic habitats such as surface film, open water, benthic and littoral

4. Explain the uses of aquatic organisms, and the impact of alien species

5. Explain the hydrologic cycle and its component processes

6. Describe the physical and chemical properties of fresh water

7. Define a watershed and give an example of a watershed address

8. Differentiate among streams, rivers, ponds, and freshwater wetlands

9. Define the three types of lakes and temperature layers

10. Define an aquifer

11. Explain nutrient cycling within a watershed

12. Differentiate among a swamp, a marsh, and a bog

13. Define water quality and explain tests and sampling techniques used to assess water quality

14. Differentiate among precluded, impaired, stressed, and threatened waterways

15. Discuss how aquatic ecosystems can be changed by hydropower, navigation, use as drinking water, recreation, industry, waste, and irrigation

16. Describe methods for conserving water quality and quantity

17. Describe how the Clean Water Act and the Endangered Species Act helps manage aquatic ecosystems

18. Describe how licenses and permits are used for aquatic ecosystem management

19. Identify government agencies that protect aquatic ecosystems