Transcript 4-H.org/NYSD Video - Georgia 4-H

4-H National Youth Science Day
Georgia 4-H
Melanie Biersmith
Extension 4-H Specialist
4-H National Youth Science Day
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Through the National Science
Experiment, youth will join the
discussion during this year’s
4-H National Youth Science Day –
Wednesday, October 6, 2010
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Experiment may be conducted
anytime
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Extra incentives for those who
enter survey results online
• $500 for County 4-H program in
each state
• 2 random youth receive iPad
Information & Resources:
www.4-h.org/NYSD
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Powerpoint template
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Flyers, posters, banners
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Graphics
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Media ads
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Timeline
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Invitations
4-H.org/NYSD Video
Watch the Experiment How-To Video
2 Minutes & Downloadable
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The Issue:
Water Quality & Climate Change
Water quality is a term used to describe the chemical,
physical and biological characteristics of water.
Today, as our population evolves, we face a growing concern
that our sources of clean water are becoming
contaminated by warming temperatures, carbon dioxide
emissions and dangerous run off. These changes
in the water quality affect not only our drinking water supply,
but also the natural habitats of aquatic plants,
animals and organisms.
The Experiment: An Overview
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Experiment is joint project of North
Carolina 4-H, North Carolina Extension,
North Carolina A&T State University
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2 different downloads available:
FACILITATOR GUIDE &
YOUTH WORKSHEETS
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Glossary of terms available:
− Water Quality
− Carbon Dioxide
− Oxygen
− Algae
− Eutrophication
− Kilowatt Hour (kWh)
− Therm
The Experiment: GPS Standards
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The Experiment: Objectives
FACILITATOR GUIDE (page 3)
•Youth across the nation will engage in an experiment that is simple
enough for even the youngest to be successful, eye-catching enough
to increase interest in science, and deep enough to allow for
continued exploration by older participants.
•Participants will engage in a discussion about water quality and global
climate change.
•Through experimentation, participants will learn about the effect of
CO2 levels on water quality.
•Participants will calculate the amount of CO2 a family contributes to
the atmosphere to better understand the human impact of the
carbon footprint.
•Participants will understand the key characteristics used to observe
water quality, such as color, odor, aquatic plants, and animals.
•Participants will understand the impact of CO2 and nutrient runoff on
the over-growth of algae in lakes, leading to changes in water quality.
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The Experiment: Materials
•Straws
•Plastic cups
•Plastic bags
•0.04% Bromothymol Blue
•Plastic wrap
•Effervescent antacid tablets
•Eyedropper
•Water
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The Experiment: SAFETY
FACILITATOR GUIDE (page 4)
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Product Information (BTB)
Potential Health Effects
First Aid Measures
Handling & Storage
Exposure Controls/Personal Protections
Disposal Considerations
RECOMMENDATIONS:
safety glasses
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The Experiment: Getting Started
Tips & Suggestions:
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Use tap water, not bottled water
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Don’t overdo the BTB or it will
take too long to change colors
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Colors go from blue to green to
yellow based on amount of
carbon dioxide
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In kits – unroll plastic wrap
before you get there!
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The Experiment: Part 1
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Add water to cup
Add 1 dropper full of BTB
Insert straw then cover cup with plastic wrap
SLOWLY blow bubbles
Repeat with multiple straws/blowers in one cup
BEFORE
AFTER
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The Experiment: Part 2
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Add water to cup & pour in baggie
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Seal except for one small portion and press out
as much air as possible
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Add ½ tablet, shake 3 seconds, and observe
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Using new bag & water, repeat with 1 tablet
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Using new bag & water, repeat with 2 tablets
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The Experiment: Part 2
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The Experiment: Part 2
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The Experiment: Part 2
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Fill a new cup ½ full of water
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Add 2 droppers full of BTB
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Add ½ tablet to cup
WHAT DO YOU THINK WILL HAPPEN?
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The Experiment: Part 2
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The Experiment: Carbon Footprints
Compare the carbon footprint (or amount of CO2 released into the
atmosphere) of the “Average Family” to the “Green Family”
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The Experiment: Carbon Footprints
Youth can calculate their own family’s carbon footprint and
brainstorm ways to reduce their impact.
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The Experiment: Join the Discussion
www.4-h.org/NYSD
2010 NYSD Results Gadget
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The Experiment: Algae
The Algae Experiment
•Requires 3-7 days
•Can be added for expanded learning
•Requires additional materials
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Questions?