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Exercise and Nutrition
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lessons
Nutrition 1: Food and the Digestive System ›
Nutrition 2: Good Food, Good Health ›
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All Systems Are Go! ›
ChooseMyPlate.gov ›
science updates
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Look What I Organized!
This lesson is the first of a two-part series about organization and information retrieval.
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Obesity
Part of The Science Inside series, this easy-to-read booklet discusses the importance of good health habits such as eating right and exercising.
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Rat Sleep
In this Science Update, learn about how the true purpose of dreaming may be learning.
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Germs and the Body
This lesson illustrates where germs exist, how they can get into and affect the body, and how the body defends itself against them.
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Snow Crystals
This site is all about snowflakes and snow crystals.
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Science NetLinks

Biodiversity: Life in the City

In this simple resource, you can scroll over a drawing of an urban, park-like setting and find ten examples of hidden "critters." Each critter is then magnified and described.

Going Further

For Educators

This resource can be used to complement units on the interdependence of life and the diversity of life. It also can be used to help teach the classification of living organisms. Before having students find the hidden critters, look at the picture with the class and identify all of the visible living things found in the drawing.

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Biodiversity: Life in the City

Going Further

Tool Details