Review this powerpoint to prepare for your test!

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?
 200 miles

6. 2. How long is the shoreline?
 4600 miles

7. 3. Average depth?
 20 – 30 feet

8. 4. What are the major rivers?
 James
 Potomac
 Susquehanna
 Rappahannock
 York

9. 5. Define a watershed.
 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?
 498,000

12. 8. Define salinity.
 Describes the amount of salt in water.
 Standard unit is ppt (part per thousand)

13. 9. What part of the Chesapeake has
the highest salinity?
 Southern due to gravity

14. 10. Define semi-diurnal tides.
 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?
 2700

16. 12. When was the last ice age? What
happened as a result?
 10,000 years ago.
 Sea level dropped. Ice caps where much larger.