What do you think of when someone mentions the word worm?
Perhaps the first thing that comes to your mind is the
average garden-variety earthworm. After all, a worm is a
worm, right? Actually, there are three different types of
worms-flatworms, roundworms, and segmented worms. Each type
belongs to a different classification in the animal kingdom.
How are each of these worms classified? What are the
characteristics of each these invertebrates? How are they
like one another? How are they different from one another?
In this WebQuest, you will find the answers to these
questions by researching the different types of worms.
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Your job in this WebQuest is to learn about the different
phyla of worms. You'll investigate flatworms, roundworms,
and segmented worms, and describe and compare the
characteristics of each type of animal. Once you've
conducted some research to increase your knowledge of worms,
you'll complete the Worm Comparison worksheet to
record the similarities and differences among these three
types of invertebrates. You'll also find a specific example
of each of these three types of invertebrates and describe
its characteristics.
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2 days to answer the set of questions and complete the
Worm Comparison worksheet
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First, read through the following set of questions before
you begin your Internet research. As you explore each site,
look for answer to the questions.
Questions about Classifying and Comparing
Worms
- How are flatworms classified, and what are their
characteristics?
- How are roundworms classified, and what are their
characteristics?
- How are segmented worms classified, and what are their
characteristics?
- In what ways are flatworms, roundworms, and segmented
worms alike?
- In what ways are flatworms, roundworms, and segmented
worms different?
Worm
Comparison worksheet PDF (15K)
(Requires Adobe
Acrobat Reader®)
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Look at the Web sites provided here to find the
information that will help you answer questions about
different types of worms, and to gather information to use
as you complete the Worm Comparison worksheet.
- http://animaldiversity.ummz.umich.edu/platyhelminthes.html
This page, from the University of
Michigan, describes flatworms.
- http://animaldiversity.ummz.umich.edu/nematoda.html
This page, from the University of Michigan,
describes roundworms.
- http://www.glencoe.com/sec/science/cgi-bin/splitwindow.cgi?top=
http://www.glencoe.com/sec/science/top2.html
&link=http://www.personal.psu.edu/faculty/w/x/wxm15/Online/
Zoology%20Unit/Annelida/annelida_lec00.htm#Classification
This page, from the University of Michigan,
describes segmented worms.
- http://www.personal.psu.edu/faculty/w/x/wxm15/Online
/Zoology%20Unit/Annelida/annelida_lec00.htm#Classification
Find out more about the characteristics of
segmented worms by visiting this page from
Pennsylvania State University.
- http://www.personal.psu.edu/faculty/w/x/wxm15/Online
/Zoology%20Unit/Nematoda/nematoda_lec00.htm
Find out more about the characteristics
of roundworms by visiting this page from Pennsylvania
State University.
- http://www.glencoe.com/sec/science/cgi-bin/splitwindow.cgi?top=
http://www.glencoe.com/sec/science/
top2.html&link=http://www.personal.psu.edu/faculty/w/x/wxm15/
Online/Zoology%20Unit/Worm%20Phyla/worms_lec00.htm
- Zoology%20Unit/Worm%20Phyla/worms_lec00.htm
Find out more about the characteristics of
flatworms by visiting this page from Pennsylvania
State University.
- http://www.glencoe.com/sec/science/cgi-bin/splitwindow.cgi?top=
http://www.glencoe.com/sec/science/top2.html&link=
http://www.howe.k12.ok.us/~jimaskew/bworm.htm
Visit this page from the Howe Public Schools
in Howe, Oklahoma to compare flatworms, roundworms,
and segmented worms.
- http://www.glencoe.com/sec/science/cgi-bin/splitwindow.cgi?top=
http://www.glencoe.com/sec/science/top2.html&link=
http://www.cssd11.k12.co.us/dohnts/Biology/bio07nt.htm#round
Information about flatworms, roundworms, and
segmented worms are found on this page from
the Colorado Springs School District.
- http://www.scsc.k12.ar.us/1999bst/Members/ArnoldL/
supporting_information.htm
Compare flatworms, roundworms, and segmented
worms at this page from the South Central
Service Cooperative in Camden, Arkansas.
Next, use the Worm Comparison worksheet to
compare the similarities and differences among flatworms,
roundworms, and segmented worms. You will use the worksheet
to collect information about the three different phyla of
worms, including descriptions of three species, one for each
of the types of worms you've investigated.
Review the rubric to understand how your worksheet will
be evaluated.
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In the process of completing this WebQuest, you've
learned about different types of worms. You have discovered
how flatworms, roundworms, and segmented worms are
classified. You have investigated the characteristics of
each type of worm as well as compared these three
invertebrates for similarities and differences. You have
completed the Worm Comparison worksheet to relate
flatworms, roundworms, and segmented worms. You also
described a specific example of each type of worm.
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