| Activities / Standards
Task 1
Xeriscape is a water conservative landscape. The area being landscaped
consists of water efficient plants and organic or inorganic mulches. Design
a landscape plan for a specific area of your school, home, park or other.
Explain and rationalize the plan. (Be creative, it does not have to be
the same as anyone elses, just be able to explain why you planned it the
way you did). If materials are available, implement your plan. Keep the
area size manageable, perhaps a 10 feet x 10 feet area. If you prefer
a larger area just be sure to adjust your time and materials. Consider
ways you will obtain the materials, supplies and equipment needed to accomplish
this landscape project. Example: plant and mulch donations, scraps and
recycables that may be reused for borders, bridges or decorations, remember
use your imagination).
Task 2
You will perform an Indoor and Outdoor Water Use Review. (School or Home)
Indoor Use
- Read the Water Meter, check the leak indicator (this is a small dial
that is located on the face of the big dial).
- First design a form or table to record the data. This may be done
on a computer spreadsheet or simply with a ruler, pencil or markers.
- What type of toilet do you have? 1.6 gallon per flush, 3.5 gpf, or
more.
- Check the toilet(s) for leaks. Drop three drops of food color (blue
is best) into tank and wait a few minutes to see if the die has leaked
into the toilet bowl, if so there is a leak.
- Check showerheads and faucets to measure how many gallons per minute
the plumbing fixtures are using. To measure, use a 5 gallon bucket for
the shower and a 2 quart sauce pan or any other measuring container
that will fit in the sink. Measure how much water was used in one minute
then calculate to determine how much was used in the time spent taking
a shower or using the faucet.
- Identify and note any leaks. Determine how many drops of water it
takes to measure one gallon then calculate how many gallons a leak will
waste in one month.
- Time and record how long each person in your family uses the shower
or leaves the sink running while brushing teeth, shaving, washing dishes,
cleaning or preparing food, etc.
Outdoor Use
- Determine the type of the existing landscape. Does it have low water
use or high water use plants? To help identify the plants, here are
a few resources:
- Check the school library for the El Paso Water Utilities Desert-
Blooms CD-Rom, also available on the internet.
- Obtain a comprehensive plant list from the El Paso Water Utilites,
Water Conservation Department or the Texas Agricultural Cooperative
Extension Service.
- Public libraries and nurseries carry a variety of plant books
or plant lists.
- Chihuahuan Desert internet links list native plants.
- What type of irrigation system has been installed? Is it an underground
system? If so, does it have drip, sprayers, bubblers? Identify the differences
of each and its specific uses. Is hand-held sprinkler attached to the
garden hose? Is the air-conditioner bleed-off line diverted to water
the landscape?
- Air Conditioner type (Refrigerated air conditioner or Evaporative
Air Conditioner)
- Residential Car wash- Determine which uses more water, a commercial
car wash or residential car wash.
- Swimming Pool-is the pool covered when not in use and how often is
it drained, or backwashed? What type of filter system is there? Sand
filter, Diatamaceous Earth or other. (Teachers can do a water filtration
activity). After recording everything on the Indoor/Outdoor Water Use
Review Form, do the calculations on the worksheet. A report needs to
be prepared to recognize the water conservative methods, but also include
areas of improvement, such as maintenance, individual or family
water use behaviors and plant selection. List the current incentive
programs offered locally or create your own ideas on incentive programs
on promoting water conservation.
(examples: Multimedia (documentaries, commercials, research, etc.) art
work for posters, billboards, bumper stickers, informational brochures,
etc.)
Task 3
The Chihuahuan Desert Region is known to have severe droughts. People should
not wait for the severity of a drought to start implementing water conservation.
Water conservation ordinances are in place in order to prolong our water
resources. Be prepared for severe drought while still maintaining your quality
of life. Ordinances that are initiated or amended need to be approved by
City Council.
- Collect current (one-two years) news media clipping (newspapers, multimedia,
journals) in reference to Water Quantity or Water Quality (local, state,
national, or international).
- Determine in the articles or media if an ordinance or regulatory issue
is being addressed and be prepared to discuss or share your opinion
to the class about the issues.
- Take a position on some of the water articles and write responses
to editors, or make a multimedia presentation to present to the class
or city council on your position.
Task 4
Get into groups of 4 or 6 and debate what restrictions should be prepared
on a drought contingency plan and whether the plan should be implemented.
Imagine each of you are city council members and you have to persuade the
mayor to approve or disapprove the drought contingency plan that has been
drafted. Prepare three stages of the plan with each stage consisting of
more severe water restrictions.
- Make up a draft contingency plan, be sure to include facts, historical
data and predictions to support your plan. (This data may also be hypothetical).
- Write a persuasive letter or speech to deliver to the Mayor; the
objective is to express the urgency in implementing the plan in order
for the Mayor to approve the plan.
National Science Standards
Unifying Concepts and Processes
- Systems, orders and organizations
- Evidence, models, and explanation
- Science as Inquiry
- Abilities necessary to do scientific inquiry
- Understanding about science inquiry
- Physical Science
- Properties and changes of properties in matter
- Motions and forces
- Transfer of energy
- Life Science
- Structure and function in living systems
- Regulation and behavior
- Population and ecosystems
- Earth and Space Science
- Structure of the earth system
- Earth history
- Science and Technology
- Understanding about science and technology
- Science in Personal and Social Perspectives
- Personal Health
- Populations, resources, and environments
- Natural hazards
- Risks and benefits
- Science and technology in society
- History and Nature of Science
- Science as a human endeavor
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