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St. Catherine University
From the SelectedWorks of Natasha Yates, MA
October 17, 2019
Water a Precious Gift 2019.pdfNatasha L Yates
Available at: https://works.bepress.com/natasha-yates/3/
Natasha L. Yates ([email protected])
Assistant Professor Department of Education
St. Catherine University
National Center for STEM Elementary Education
*
Using a multiple of teaching techniques, such as
demonstrations, lecture, and teaching through
participatory story telling helps keep students
engaged.
Oct. 17, 2019
Breakout Session: 12:30 – 2:00 p.m.
1
https://www.youtube.com/watch?v=evH2r5dOq5Q (2:47) The Water Cycle Rap
(w/ lyrics)
The water cycle is
taught in multiple
grades. Here is a
refreshing rap to
review. Before
diving into runoff.
4
Demo 1: Fresh Water Materials: Empty gallon containerShot glass or small clear measuring cup A little over one ounce of a colorful liquid (soda or water with food dye)Eyedropper or Petri dishA selection of empty containers or glasses, for example: Half-gallon container Two-liter soda bottleQuart container One-liter soda bottlePint-sized container or pint glassSmall, empty glass
Procedure:
1. Line up the containers—except the eyedropper or Petri dish—from large to small so all students can see2. Explain that if the gallon represented all the water on earth, how much of it is fresh water for people to use?3. The students who selected the shot glass are correct—sort of.4. Remove about 1/3 or roughly 1 teaspoon of water in the shot glass by using an eyedropper or pouring it into the Petri dish. The water that remains in the shot glass represents fresh water that cannot be accessed—it’s too deep in the ground or it’s frozen. The liquid in the eyedropper or Petri dish represents fresh, accessible water that humans can use. Compare it tothe volume of a gallon.
5
*
•Water may seem abundant, but drinkable water is rare
• Freshwater = relatively pure, with few dissolved salts
–Only 25% of Earth’s water is fresh
–Most freshwater is tied up in glaciers and ice caps
6
*
*Where is that fresh water?
*20% Great Lakes of North America
*20% Lake Baikal in Russia
*60% in the rest of lake, rivers,
groundwater and soil
7
*
Faith the fish started life in a clean fresh water river. The river meanders through a protected wilderness area. She has lived in this stretch of the river all of her life. Now she is going on an adventure – traveling downstream.
10
Source Pollution How is Faith? Pollution
Prevention
Nature
Preserve
Clean
Water
Add your own adjective
here
I need 9 volunteers to lead Faith down stream.
I need 8 volunteers to contribute to the stream. (It is all scripted, just follow
instructions)
Everyone draw out a data table:
11
IMAGES:
http://moneypennydd.wordpress.com/2008/0
5/02/great-lakes-water-pollution/
&
http://water.epa.gov/scitech/datait/models/
aquatox/index.cfm13
*The result of polluted
storm water, or “Urban Stew,” entering streams and the Mississippi River can cause damage to ecosystems. When the streams are polluted, plants, aquatic insects, birds and other animals that depend on the streams for survival, suffer.
Ultimately, humans also suffer. Streams and rivers provide urban wilderness areas, and they are used for recreation, agriculture and drinking water. It is only with pollution prevention efforts by local citizens that waterways will remain clean and safe.
* Types of Pollution:
* Nutrient pollution from agriculture and industry
* Pathogens and waterborne diseases
* Hazardous waste
* Bug spray, nail polish, oil paints, furniture polish
* Toxic chemicals from natural and synthetic sources
* Pesticides, petroleum products, synthetic chemicals
* Arsenic, lead, mercury, acid rain, acid drainage from mines
* Sediment
* Clear-cutting, mining, poor cultivation practices
* Thermal pollution (what’s this?)
14
Source Pollution How is Faith Pollution Prevention
Nature Preserve Clean River Stress free & healthy Preserve wetlands
Construction Site Soil run off
Housing lawns & gardens fertilizers Algal bloom >>
decomposition uses O2
Don’t use fertilizers
use compost
Highway bridge Leaking oil Consuming can cause
organ distress
Keep cars in good repair
Ice on Bridge > Road salt Road salt run off High levels of chloride
can interfere with
chloride regulation in
animals
Using sand
Non-chloride deicers
City Park Picnickers’ trash More rubbish bins/ finesMN Statute 609.68
Drainpipe soap from
people washing car
Soapy water Algal bloom which use
O2
and block sunlight
Wash cars on lawn or
use car wash. Don’t use
soap to clean sidewalks
or driveways
Walking trail / pets Pet poop pathogens Clean up after pets
Trash pile Household hazardous
waste
Toxins Disposed of at the
county drop off
15
*
Images from clip art and:
http://techalive.mtu.edu/meec/module05/NitrateandPhosphorous.htm
http://winefolly.com/review/what-are-tannins-in-wine/
http://www.pbwatersoftening.com/what-are-the-reddish-brown-stains-in-
my-sink-tub-and-toilet/
http://www.trustedsaskatoon.com/blog/post/2014/02/03/Trusted-
Saskatoon-Water-Experts-share-a-tip-on-Smelly-Water.aspx
16
* Downspouts direct water to lawn
* Rain Barrels to capture water from the roof
* Trees catch rain and filter it
* Prairie plants have deep roots to slow water runoff and filter water
* Rain gardens capture runoff from driveways
* Pavers instead of cement
allow water to seep through
to soil
*Green Roofs capture and
use water while insulating
and dampening noise
* Re-grading slope of land for
slow runoff and increased
infiltration
Above information from:
www.co.ramsey.mn.us/pw
/stormwater.htm
Be a storm water hero. Stop rain where it drops.
Have students generate ideas in a discussion before explaining them.
17
We can explain
Water Filtration with
discussion or an
interactive Water
Filtration Lab here is
one from the EPA
http://www.epa.gov/sa
fewater/kids/flash/flas
h_filtration.html
A paper copy can be
printed from:
http://water.epa.gov/l
earn/kids/drinkingwate
r/upload/2005_03_10_k
ids_activity_grades_4-
8_waterfiltration.pdf
Hands – on
activity: Create your
own Water
Filtration
system
18
**1. Using your adjectives and creativity to draw cartoons
depicting Faith’s adventure.
*2. Devise an educational activity to teach others about storm
water pollution and its prevention.
*3. Write a contrast story describing what it would be like to
be a fish living in a clean stream vs. a polluted stream.
*4. Make fish dioramas, yes the old fashioned kind can be fun
– using paper plates or shoe boxes, etc.
*5. Use picture books on the topic of water pollution,
conservation, aquatic habitat, etc.
*6. Visit a nearby pond and do a pond study, collect data:
temp. D.O., pH, turbidity, use field guides to identify
organisms.
*7. Paint river or pond ecosystems19
*
*Explain chemically why water picks up so many pollutants? Draw molecular bonding.
*Create a model depicting on the molecular level why in winter ponds do not freeze from the bottom up.
*Explain why some pollutants won’t dissolve in water.
*Soaps can have phosphates in them. Why are phosphates harmful to streams or lakes?
*Write a story explaining how phosphates can lead to a dead zone in waterways.
*Research social justice issues regarding access to clean drinking water.
20
*
a. In 2010 one out of every six people did not have access to clean water. More than 1 billion people
b. (1 group sit down)
c. By 2025 ½ of the countries worldwide will face water stress or shortages
d. (2 more groups sit down)
e. How many groups do you think will have clean water by 2050?
f. (1 ½ groups sit down)
g. In 2050, if the water crisis continues as it is going 75% of the world’s population will not have access to clean usable water and will be affected by water scarcity.
h. Write down how when/if 75% of humans are deprived of the water they need will this affect you.
21
http://www.scienceforthepeople.net/prob/prob.htm
Millions Lack Safe Drinking Water
22
*
• 1.1 billion people live without clean
drinking water
• 2.6 billion people lack adequate
sanitation
– (2002, UNICEF/WHO JMP 2004)
• 1.8 million people die every year from
diarrheal diseases.
• 3 900 children die every day from water
borne diseases
– (World Health Organization)
• Solutions:
• Treat sewage
• Disinfect drinking water
• Public education to encourage
personal hygiene
• Government enforcement of
regulations
*
*“National Geographic reported in Sept.
2002 that bone-dry Dubai had 2.6 million
gallons of expensively desalinated seawater
coursing through its popular Wild Wadi
Water Park.”
*“Time Magazine reported in April 2004 that
the 2.5 billion gallons of water used to
irrigate the world’s golf courses each day
would be enough to support 4.7 billion
people at the U.N.’s daily minimum of
water.”* CHEM In Your World Ed 1 Joesten and Hogg p. 208
25
*
http://www.youtube.com/wat
ch?v=bVot9tEG0aw (7:50)
Colorado Water Supply
26
http://www.dnr.state.mn.us/minnaqua/leader
sguide/lg_online/index.html
http://www.dnr.state.mn.us/education/teach
ers/index.html
https://mrbdc.mnsu.edu/sites/mrbdc.mnsu.ed
u/files/public/pdf/askexpert/EdGuideFish.pdf
*
28
UNESCO reports the following interstate conflicts Nile River : Egypt,
Ethiopia, Sudan
Indus River: India & Pakistan
Tigris & Euphrates Rivers: Iraq, Syria, Turkey
Jordan River: Israel, Jordan, Lebanon, Palestine
Aral Sea: conflict among Kazakhstan, Uzbekistan, Turkmenistan, Tajikistan and Kyrgyzstan
30
Botswana• How a culture treats water shows
how it is valued. For example, the importance of water can be seen in the flag of the Republic of Botswana (a landlocked country south of the equator in Africa.) The blue represents water - the motto on the Botswana national arms is PULA, meaning "let there be rain." The word for water in Setswana is PULA the word for money in Setswana is PULA. The black and white stripes symbolize the racial harmony of the country's people, as well as the pluralist nature of their society. The stripes were inspired by the national animal of Botswana, the zebra. (Pronounced zebra not zeebra)
• https://video.nationalgeographic.com/video/00000144-0a2c-d3cb-a96c-7b2dc0870000 (5:24)
31
Largest landlocked delta in the worldAngola, Namibia and Botswana share in peace the water leading to the
Okavango Delta
32
https://www.youtube.com/watch?v=EXZduDnHvIg The Future of Water Bill Cooper at TEDcUCIrvine (11:25)
http://www.youtube.com/watch?v=-qpbWZRC_dw
(3:02) Paris Water Bar
http://www.youtube.com/watch?v=USUCHHdmlIc (5:45) The Global Water Crisis
http://www.youtube.com/watch?v=t8zUZHJDK-w (1:36) 10 Amazing Facts About Water
*
33