Test review Unit 1: Getting Your Feet Wet, Including the Chesapeake Bay Watershed
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This document contains information about caring for aquarium tanks, including the necessary gravel, use of a psychrometer to measure salinity, and test kits to determine oxygen, pH and ammonia levels. It also provides the dimensions of a sample rectangular tank and how to calculate the volume of a circular tank. The remainder of the document asks and answers multiple choice questions about characteristics of the Chesapeake Bay watershed, such as its north-south distance, shoreline length, average depth, major rivers, defining a watershed, states it includes, acreage, defining salinity, region with highest salinity, defining semi-diurnal tides, and plant and animal species. It concludes with information about the last ice
Test review Unit 1: Getting Your Feet Wet, Including the Chesapeake Bay Watershed
- 1. Test Review Unit 1: Getting Your Feet Wet & The Chesapeake Bay Watershed
- 2. Aquarium Care…  Gravel is necessary for beneficial bacteria, buffering, and to trap suspended particles.  A psychometer is used to measure salinity.  Test kits determine oxygen, pH, and ammonia in tanks.  Optimum pH in seawater is 8.1 – 8.2  When introducing a new animal in an aquarium, salinity and temperature must match.  Fish tend to prefer water with a pH of 8.
- 3. Determine Volume of a rectangle…. Length 10 cm Width 20 cm Height 30 cm
- 4. Determine the volume of a circle…  Pi (r)2 x height Example: What is the volume of a tank that has radius of 30cm and a height of 60cm? 3.14 (30) 2 x 60 = 11,304 cm3
- 5. 1. What is the distance of the Chesapeake Bay north to south? ï‚— 200 miles
- 6. 2. How long is the shoreline? ï‚— 4600 miles
- 7. 3. Average depth?  20 – 30 feet
- 8. 4. What are the major rivers? ï‚— James ï‚— Potomac ï‚— Susquehanna ï‚— Rappahannock ï‚— York
- 9. 5. Define a watershed. ï‚— An area of land drained by a network of rivers or a body of water.
- 10. 6. What states make up the Chesapeake Bay Watershed? VA, WV, PA, DE, MD, NY
- 11. 7. How acres does the CBW have? ï‚— 498,000
- 12. 8. Define salinity. ï‚— Describes the amount of salt in water. ï‚— Standard unit is ppt (part per thousand)
- 13. 9. What part of the Chesapeake has the highest salinity? ï‚— Southern due to gravity
- 14. 10. Define semi-diurnal tides. ï‚— 2 high tides and 2 low tides within 24 hours.
- 15. 11. How many species of plants and animals does the Chesapeake Bay wetland have? ï‚— 2700
- 16. 12. When was the last ice age? What happened as a result? ï‚— 10,000 years ago. ï‚— Sea level dropped. Ice caps where much larger.