well, what will we drink? diana larrabee corcoran high school syracuse city school district
DESCRIPTION
Well, What Will We Drink? Diana Larrabee Corcoran High School Syracuse City School District. Well, What Will We Drink?. This environmental health learning experience encourages students to investigate the publicly available information on drinking water sources. Well, What Will We Drink?. - PowerPoint PPT PresentationTRANSCRIPT
Well, What Will We Drink?
Diana Larrabee
Corcoran High School
Syracuse City School District
Well, What Will We Drink?
This environmental health learning experience encourages students to
investigate the publicly available information on drinking water sources.
Well, What Will We Drink?
This three day activity includes:
• A directed case study
• A lab activity
Core Connections
• Introduction to solution concentration
• Parts per million (ppm)
• Serial dilution
• Data Analysis
http://www.epa.gov/safewater/kids/teachers_9-12.html
Before We Begin
Ground Rules
• All group members are responsible for all group work.
• Everyone participates.
• Group process will be evaluated.
Group Roles
• Facilitator - moderates discussion, keeps the team on task
• Recorder - takes the official notes of the groups discussion
• Spokesperson - answers oral questions and acts as spokesperson for the group
• Technician - makes sure group has all needed materials, organizes work area
The Scenario
Please read along while our volunteers read for us.
http://www.vacationhomerentals.com/vacation-rentals/Whidbey-Island-Washington-Farmhouse-with-stunning-views-proID-1702.html
Your Task
Your group will find information on well water and the public water supply.
From this information you will prepare a presentation for Jim and Norma to help them decide what they will drink.
Resources
http://www.epa.gov/safewater/privatewells/booklet/index.html
http://www.epa.gov/safewater/index.html
http://www.epa.gov/safewater/consumer/pdf/mcl.pdf
Resources
http://www.epa.gov/safewater/index.htmlUS Environmental Protection Agency Ground Water & Drinking
Water http://www.epa.gov/safewater/mcl.html#mcls
EPA List of Drinking Water Contaminants & MCL’s. http://www.epa.gov/safewater/wot/index.html
“Water on Tap: What You Need to Know http://www.epa.gov/safewater/privatewells/booklet/index.html
Online booklet on private wellshttp://www.health.state.ny.us/nysdoh/water/main.htm
NYS Department of Health Drinking Water Protection Programhttp://www.health.state.ny.us/nysdoh/water/part5/append5b/
fs3_water_quality.htm“Individual Water Supply Wells-Fact Sheet 3, Recommended Residential Water Quality Testing”
http://www.health.state.ny.us/nysdoh/water/water_quality_report_links.htmLinks to required water quality reports for large NYS public water supplies.
Research Time
Please answer questions numbered 4,6 and 14 on the “Your Task” handout, using the resources
that have been provided in the folders.
You have 3 minutes
Brief Reflection
Student timeline will vary based on research method chosen.
Answers will be used to prepare a presentation for the Alvarez family.
Lab Activity
Ppm, ppb and Serial Dilution
• How concentrated is a part per million?
• How can we make a solution with that concentration?
• How concentrated is a part per billion?
Parts per Million
Parts per million =grams of solute
grams of solutionX 1 000 000
Start the Lab
Technicians should acquire the lab materials.
You may proceed as soon as you have read the information and procedure.
If you have questions, please ask before you act.
Lab
Please clean up the materials before answering the questions.
You have 10 minutes.
Check Your Understanding
Homework Ideas:
- Review your research
- Concentration practice problems
Day 3
Students will use the information from their research to prepare their presentations.
The Presentations
Review your research and the water quality report for the Alvarez’s well.
Your group will need to prepare a 3 minute presentation for the Alvarez’s. You will need to take a position and defend the recommendation using information from your research.
You have 15 minutes to prepare your presentation.
Extensions
• Students research of bottled water standards
• Use the serial dilution technique to prepare solutions with a series of pH values
• Compare concentrations to hormone levels, often as small as parts per trillion