Event-Based
Science is a new way to teach middle
school science. It is an award-winning,
standards-based program in which
newsworthy events establish the relevance
of science topics; authentic tasks create
the need-to-know more about those topics;
and lively interviews, photographs, Web
pages, and inquiry-based science
activities create a desire to know more
about those topics.
Toxic
Leak! is an Event-Based Science module
about groundwater. It uses gasoline leaks
in a Charlotte, North Carolina tank farm
to establish the context for exploring
concepts related to the subsurface water
that we call groundwater. The task in Toxic Leak!
places students in the
roles of high school students in a small
town with a similar problem. A leaking
gasoline tank at the community's general
store is contaminating some wells in town.
Students will acquire then use their
knowledge of aquifers, groundwater, and
permeability, porosity, and capillarity to
help their town council select a site for
a new community well. Their selection of
the site will demonstrate an understanding
of relevant science
concepts.
As with all Event-Based
Science modules, much of the information that
students need is provided in the pages of Toxic
Leak!. However, more information may be helpful
to students as they explore topics related to
groundwater. Information about water usage, water
conservation, wells, septic systems, soils, and
environmentally safe recipes for cleaning and
household products is available at the sites listed
below.
Correction
Alert
Jeannie Okray (science
teacher at Lake Mills Middle School, Lake Mills,
Wisconsin) has identified an error in the Teacher's
Guide portion of the Above and Below Science
Activity. One of the "Official Drilling Logs,"
found on page 15 of the Teacher's Guide has an
error. In the right hand column, 207 Market Street
should have a Well Depth of 75 feet. We are sorry
for the error, please take the time to correct it
now.
Barbara Jabobson (member of
the Rhode Island Geography Education Association)
has identified an error in the Above and
Below Science Activity found on page 26 of the
student edition of Toxic Leak!. In procedure
4 you will find reference to the scale to use when
making a subsurface profile. The wording states
"use the scale 1 inch = 2 feet." Barbara reminds us
that the correct terminology is "use the scale 1
inch represents 2 feet."
A "pdf" file containing web
sites, books, material lists, and correlations with
National Science Education Standards.
Use the
BACK button in your browser to return to
this page.
Click on the highlighted
words and be linked with helpful sites.
Links to Toxic Leak!
related WEB Sites
(Links are checked monthly. They were working
on the date of the last update.)
Water
Science for SchoolsThis USGS sponsored web site offers
information on many aspects of water, along with
pictures, data, maps, and an interactive center
where you can give opinions and test your water
knowledge.
The
Global Water Sampling
Project
Through this site, students from around the
globe are teaming up to test fresh water. Join
in this collaborative project and compare the
water quality of your local river, stream, lake
or pond with other fresh water sources around
the world. (This project is developed and
managed by the Center for Improved
Engineering and Science Education (CIESE)
which is located at Stevens Institute of
Technology in Hoboken, New Jersey.)
American
Ground Water Trust
from this sites information page, you can search for brief,
easy to understand explanations of many ground water
issues.
Benzene
found in crude oil and gasoline, causes
cancer. Learn more about benzene at this
site.
Earth
911 is a great site for general information related to
all environmental issues. You can also enter your Zip Code and
get information for your community.