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Phytochemicals and a Healthy Diet - from Glencoe Online http://www.glencoe.com/sec/science/webquest/content/phytochemicals.shtml
Do you like broccoli and cauliflower? Do you eat carrots and peas? Perhaps
you drink orange or grapefruit juice for breakfast every day, or eat an apple at
lunchtime. Fruits and vegetables such as these are essential to a healthy diet,
yet many people do not eat enough of these natural foods. There is mounting
evidence that eating a well-rounded diet, consisting of several servings of
fruits and vegetables every day, can reduce the effects of aging, and help to
prevent diseases such as cancer, diabetes, and heart disease. The chemicals that
occur naturally in plants, such as fruits and vegetables, are called
phytochemicals. You may have seen television commercials that discuss the health
benefits of taking supplements that contain lutein and capsaicin, two types of
phytochemicals. What are phytochemicals exactly? What foods contain important
phytochemicals? Do you have to eat broccoli to obtain its healthful
phytochemicals, or can you benefit equally by taking a pill that contains those
phytochemicals? In this WebQuest, you’ll learn the answers to these questions
as you explore the nature of phytochemicals.
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This Month's Lesson
DNA
"The Secret of Life" (part one of five)
Miiddle / High School
Sunday, January 4, 2004
10 - 11:00 pm
This series, narrated by Jeff Goldblum, celebrates the 50th anniversary of
Jim Watson and Francis Crick’s remarkable discovery. In this first
episode, the definitive account of the birth of DNA science, the people involved
retrace their footsteps to tell the story. The film culminates in a rare
interview with Francis Crick, in which the reclusive scientist explains how DNA
forms living things. (CC, Stereo, 1 year)
Log onto the companion Web site and take a tour of the history of DNA,
including images, illustrations and video clips from the series. Check out a 3D
model of the double helix, with the ability to rotate and zoom. Plus, learn more
about the chemical components of DNA.
http://pbs.org/dna
Sign up to receive PBS teacher previews by email. To sign up for PBS
Teacher Previews, go to your "My Profile" area on PBS TeacherSource: http://pbs.org/teachersource/preferences/
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Sources for Great Health & Science Lessons
Visit these additional web sites to find health & science lessons:
A to Z Teacher Network - http://www.atozteacherstuff.com/lessonplans/
Ask ERIC - http://askeric.org/Virtual/Lessons/
DiscoverySchool.com - http://school.discovery.com/lessonplans/health.html
EdHelper - http://www.edhelper.com/cat55.htm
Education World - http://www.education-world.com/
ENC - Eisenhower National Clearinghouse - http://www.enc.org/
Health Teacher.com - http://www.healthteacher.com/
Newton's Apple (PBS) - http://www.pbs.org/ktca/newtons/
PE Central - http://www.pecentral.org/
PBS TeacherSource - http://www.pbs.org/teachersource/health.htm
PBS Teacher Previews - Sign up for this weekly email for lessons in
all content areas, including health, science, and technology. Go to
your "My Profile" area on PBS TeacherSource: http://pbs.org/teachersource/preferences/
TeacherSource - http://www.pbs.org/teachersource/health.htm
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Lesson/Project/Resource Sites
Don't miss sites like Blue Web'n and ENC - Eisenhower National
Clearinghouse.
Blue Web'n - Lessons, projects, oh my! Visit - http://www.kn.pacbell.com/wired/bluewebn/
Brought to you by the Pacific Bell Knowledge Network.
ENC (Eisenhower National Clearinghouse) - Really a math and
science site, ENC will send you a monthly email of the Digital Dozen -
12 top math and science sites that always include something great for
health teaching. ENC also publishes a quality magazine, free for
the asking. Visit - http://www.enc.org/
FOSSWEB - FOSS is an elementary and middle school science
program developed at the Lawrence Hall of Science with support from
the National Science Foundation. Teachers could use the FOSS website
as a way of integrating aspects of this program into their own
curriculum. This site contains interactive modules on topics
such as Food and Nutrition, Solar Energy and Landforms, to name a
few. Each module contains activities and resources including
pictures and movies. Visit - http://www.fossweb.com
or go directly to the Food and Nutrition page - http://www.fossweb.com/cgi-bin/fossweb/module.pl?module=Food
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This page was created by Margo Harris for the Seattle
Public Schools. For comments about this page, contact Margo
at margo@pnwhealth.com
This page was last updated January 14, 2004 .
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