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.
To enhance students'
enjoyment of this EBS module, there is an album of photographs for
students to use.
These photos may be
printed out and used to decorate their exhibits.
(Click on this
photograph to open the album.)
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Science website was available
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BIOLOGISTS UNCOVER DARWIN'S "MISSING
FOR DIVERGENCE OF SPECIES--IN A WARBLER'S SONG
funded by NSF and affiliated with the University of California at San
Diego (UCSD) have demonstrated, in a study of the songs and genetics of
a series of interbreeding populations of warblers in central Asia, how
one species can evolve into two.
investigators have discovered intermediate forms of two reproductively
isolated populations of songbirds that no longer interbreed. This work
provides evidence predicted by Darwin in support of his theory of
"One of the
largest mysteries remaining in evolutionary biology is exactly how one
species can gradually diverge into two," says Darren Irwin, a biologist
at UCSD who headed the study. "This process, known as speciation, is
very difficult to study because it can take a great deal of time to
is the first case in which "we can see all the steps that occurred in
the behavioral divergence of two species from their common ancestor,"
says Irwin. "These results demonstrate how small evolutionary changes
can lead to the differences that cause reproductive isolation between
species, just as Darwin envisioned." [Cheryl Dybas]
What Really Caused the Deformity?
Kiesecker of Pennsylvania State University, is known for linking
amphibian declines in the western United States to global warming. Now
he has established that when it comes to frog deformities, it is an
aquatic parasite acting together with wetland contamination that may be
causing the problem.
discovered that commonly used pesticides can weaken the immune systems
of tadpoles. In their weakened state, a trematode can enter the
tadpole and form cysts that cause leg deformities.
activities in Survive? allow students to explore the
environmental pressures that shape a population and lead to changes
over time. As with all Event-Based Science modules, much of the
information that students need is provided in the pages of Survive?.
However, more information is needed. Information from the Web about
animals, heredity, diversity, and evolution will add to the
authenticity of your study.
some World-Wide Web sites where additional information is available.
Click on the highlighted words and be linked with helpful sites.
Links to Survive? related WEB Sites
(Links are checked monthly. They were
working on the day of the last update.)
Resources From the National Academies
This Web page is designed to provide easy access to books, position
statements, and additional resources on evolution education and
research. These materials have been produced by the National Academies
and other sources. The site will be updated and expanded
Virtual Owl Pellet Dissection
this site. It allows you to dissect an owl pellet and discover its
contents. It provides users of the Survive? module with an
inexpensive way to complete the "Owl Be Seeing You" science
activity without the expense of actually buying owl pellets.Please
donateand help this site stay alive.
American Reporting Center In cooperation with the
scientific community, this Web site has been designed as place where
people can report sightings of amphibian malformations in North
America. If you have observed malformed amphibians, or if you have
handled a number of wild amphibians but not noted any abnormalities,
they urge you to report your sightings by going to How Can I
Submit a Report? on their site.
a collection of pictures and information about animals supported by the
University of Michigan's Museum of Zoology.
Where Frogs Live Feature article discussing the
effects of environmental conditions on amphibians.
Human Genetics A Worldwide Search for the
Dominant Trait - Do You Have It? One way for students to learn how their
physical characteristics, or traits, are inherited is by gathering a
great deal of information about specific, easily-seen human features.
Students can analyze this information to determine which trait is
controlled by a dominant gene. During this project, students will
complete surveys, formulate hypotheses, and use the data compiled by
students around the globe to test their hypotheses. (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.)
Deformed Frogs in Minnesota Deformed
frogs were discovered in Minnesota in 1995. This site will help you
learn more about where the deformed frogs were first found, why we are
concerned about deformed frogs, what is being done about the problem
and what you can do to help.