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Plants: Hanging Tough
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In this hands-on activity, learners will become familiar with the special adaptations of rainforest plants and discover the conditions needed for tropical trees to survive along with what can impinge
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-214.jpg?itok=HjTwqw__)
Wolf Limiting Factors
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In this activity, learners simulate a wolf and its habitat and observe what happens when the limiting factors change over time.
Pollution in Our Watershed
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By building a simple watershed with paper and markers and then using a spray bottle to simulate precipitation, learners will understand how pollution accumulates in our water sources, especially from
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-888.jpg?itok=F7vOYink)
Bacteriopolis
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In this long-term activity, learners make a home for a colorful community of microorganisms.
Leaves: Designing Leaf Arrangements on a Branch
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In this hands-on activity, learners investigate the functional design of leaves on a tree.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-028.gif?itok=-Bscsfur)
The Carbon Cycle and its Role in Climate Change: Activity 2
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In this activity (on page 7), learners explore the meaning of a "carbon sink." Using simple props, learners and/or an educator demonstrate how plants act as carbon sinks and how greenhouse gases cause
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Coverslip Traps
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In this activity, learners use coverslips to collect organisms from a pond, estuary or marine environment and then examine what they have caught with a microscope.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-213.png?itok=FiFuJJtn)
Wolf Survival
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In this activity, some learners pretend to be wolves, while the other learners pretend to be the prey of the wolf. The goal of the simulation is to have the wolves work together to survive.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-993.png?itok=AuNzcOSP)
Water "Digs" It!
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In this activity, learners investigate soil erosion. Learners set up a simulation to observe how water can change the land and move nutrients from one place to another.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-097.jpg?itok=uXqP9rO6)
School of Fish
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In this activity, learners will make fish cutouts that propel through the water with the help of surface tension.
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The Best Dam Simulation Ever
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This online simulation game explores the different consequences of water levels on the Columbia River in the Pacific Northwest.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-763.jpg?itok=2RMB7x0x)
Introduction to Ocean Zones
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In this activity, learners will create a diagram of the ocean zones and determine what organisms live in each zone.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-509.png?itok=B-jqFCWJ)
Globe at Night
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In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-521.jpg?itok=nKgjIAsp)
Build a Coral Polyp
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In this activity, learners build one or more edible coral polyps and place them together to form a colony.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-316.png?itok=UZdKzuvV)
Tree Tally
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In this outdoor activity and fun race, learners first find the most common type of tree in a forest site.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-537.png?itok=6IJvOtrM)
Energy For Life
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In this activity about the relationship between food and energy (page 1 of PDF), learners observe and quantify the growth of yeast when it is given table sugar as a food source.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-200.png?itok=ry_xcTKo)
Eat Like a Bird
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Birds' beaks are designed to allow birds to get the most of whatever food they need. In this activity, learners get an idea of how different beak shapes suit different food sources.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-116.png?itok=ldYe8zbU)
Roots and Shoots
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In this outdoor activity, learners discover that plants aren't just shoots (stem, branches, leaves, and flowers) growing above ground, but contain plenty of roots growing underground—more than half th
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-283.jpg?itok=gYUClqtA)
Sensational Seaweed
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In this culinary activity, learners use multiple senses (sight, smell, touch, and taste!) to explore real seaweed samples.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-320.jpg?itok=oEUAPAR3)
Coral Polyp
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In this activity, learners will create their own coral polyps - the basis for a coral reef.