This document outlines key objectives and terms for a lesson on the Chesapeake Bay. The objectives are to: describe estuaries and their importance; provide examples of Chesapeake Bay communities; explain the bay's significance; investigate major conservation, safety, and health issues; and understand how human actions affect bay habitats and watersheds. Key terms defined include estuary, community, habitat, and concepts like conservation, erosion, and deposition. The document also discusses the surface area-to-volume ratio and its relevance to predicting water quality impacts.

1. Bay – Sic Ratios

2. Key Objectives:
 The student will:
– Explain the characteristics of
estuaries and why they are important
Describe their characteristics
Provide examples of natural
communities of the Chesapeake Bay
Explain why the Chesapeake Bay is so
important

3. Key Objectives:
 The student will:
– Investigate and understand major
conservation, safety and health
issues regarding the bay

4. Key Objectives:
 The student will:
– Investigate and understand the effects
of human actions on the habitats of
the bay and surrounding areas

5. Key Objectives:
 The student will:
– Investigate and understand
terminology related to Watersheds
i.e. divide, tributaries, river systems,
erosion, depoitsion, estuary

6. Key Terms
 Estuary/ies
 Community
 Habitat
 Conservation
 Ecosystem
 Erosion
 Deposion

7. Estuary/ies
 A partly enclosed coastal body of water
with one or more rivers or streams
flowing into it, and with a free
connection to the open sea
 Where freshwater mixes with salt water

8. Community
 A group of organisms or populations
living and interacting with one another
in a particular environment.

9. Habitat
 The area or natural environment in
which an organism or population
normally lives.

10. Habitat
 A habitat is made up biotic factors such
as the availability of food and the
presence of predators.
 A habitat is not necessarily a
geographic area—for a parasitic
organism it is the body of its host or
even a cell within the host's body

11. Conservation
 The protection, preservation,
management, or restoration of natural
environments and the ecological
communities that inhabit them

12. Ecosystem
 A community of organisms together
with their physical environment, viewed
as a system of interacting and
interdependent relationships

13. Ecosystem
 It includes such processes as the flow
of energy through trophic levels and the
cycling of chemical elements and
compounds through living and nonliving
components of the system

14. Erosion
 The process by which soil and rock are
removed from the Earth's surface by
natural processes such as wind or
water flow

15. Deposition
 The accumulation or laying down of
matter by a natural process, as the
laying down of sediments in a river or
the accumulation of minerals

16. LAB BREAK

17. Support Terms
 Surface Area-to-Water Volume Ratio
– The amount of surface area per unit
volume of an object or collection of
objects.
– The surface-area-to-volume ratio is
measured in units of inverse distance

18. Surface Area-to-Water Volume
Ratio
 A cube with sides of length a will have a
surface area of 6a2 and a volume of a3. The
surface to volume ratio for a cube is thus
shown as.
SA:V = =6a2
a3
6
a

19. Lab Time
Introduction:
– Now it is time to introduce the
new lab.
– Pease open your Green lab
guides to page19
– Read the introduction silently as I
read it aloud

20. Introduction (cont.)
 Now take a few minutes to read
the prediction section on page 19

21. Essential Learnings
 The Chesapeake bay is an estuary
where fresh and salt watermeet and
are mixed by tides.
 It is the largest estuary in the
contiguous (touching) United States
as well as one of th e moist
productive

22. Essential Learnings
 Human activity directly affects the
water quality of the ecosystems in
the watershed

23. Essential Learnings
 Human actions may also lead to
problems related to the water
supply, air quality, energy
production and waste
management

24. Essential Learnings
 Land surface area-to-water
volume ratio is an important
factor to consider when
predicting the effect on water
quality human activity has on the
estuary