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Caution! Wildlife Crossing
Source Institutions
In this design challenge, learners use their creativity and imagination to design and test a wildlife crossing for their favorite animal.
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Algae in Excess
Source Institutions
Plants need nutrients to grow. This is why we apply fertilizers to grass and food crops. In this activity, learners will explore how fertilizers can affect lakes and other bodies of water.
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The Scoop on Habitat
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Some aquatic organisms live in open water, while some live in soil at the bottom of a body of water.
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Morphing Butterfly
Source Institutions
In this activity, learners explore how nanosized structures can create brilliant color.
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Counting With Quadrants
Source Institutions
Millions of organisms can live in and around a body of water.
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Flashy Fish
Source Institutions
Professor John Endler traveled to Trinidad in the 1970s to study wild guppies. In this activity, learners take part in an online simulation of Endler's work.
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Rock Pioneers
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In this outdoor activity/field trip, learners investigate organisms that live along the ocean's rocky coast.
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Extinct!: Are You Smarter than a Plant?
Source Institutions
In this online activity, learners find out whether they are smart enough to survive as a plant.
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First Impressions
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Learners experiment with a commercial photo-sensitive paper (Sunprint® or NaturePrint® paper). They place opaque and clear objects on the paper and expose it to bright light, observing the results.
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Envirolopes
Source Institutions
In this outdoor activity and observation game, learners hunt for a variety of textures, colors, odors and evidence of organisms in the activity site.
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Observing Insects at Night
Source Institutions
In this activity, learners set up a night time insect observation station with a light and sheet.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-875.jpg?itok=yHhyLgi_)
Starting Your Container Garden
Source Institutions
This guide outlines how to plant a garden even if you don't have a yard!
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-515.jpg?itok=KQofYl3-)
Leaf Rubbings
Source Institutions
When was the last time you took a really close look at a leaf? In this activity, learners will use leaves and simple materials to make colorful leaf rubbings.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-200.jpg?itok=NY-jH17-)
Dress Like a Frog
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In this activity, learners will discover what it takes to be a frog. By dressing up like one, learners can visualize how each part of the frog plays an important role in surviving its habitat.
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Natural Indicators
Source Institutions
Learners combine different plant solutions -- made from fruits, vegetables, and flowers -- with equal amounts of vinegar (acid), water (neutral), and ammonia (base).
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The Great Plankton Race
Source Institutions
In this activity, learners are challenged to design a planktonic organism that will neither float like a cork nor sink like a stone.
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Squash Dissection
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In this activity, learners will dissect a pumpkin or winter squash to learn the parts of the plant. This activity gets your learner hands on with every part of the plant and will be messy.
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Clam Hooping
Source Institutions
In this two-part outdoor activity, learners conduct a population census of squirting clams on a beach or mudflat, and investigate the clams' natural history.
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See the Light
Source Institutions
Learners mix a solution of luminol with hydrogen peroxide to produce a reaction that gives off blue light.
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Seas in Motion
Source Institutions
In this outdoor, beach activity, learners use tennis balls, water balloons and other simple devices to investigate the movement of waves and currents off a sandy beach.