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Showing results 1 to 20 of 117
Bee Talk
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In this activity, learners smell bottles containing bee pheromone molecules (or herb/spice extracts as a substitute). Bees release these molecules to send messages to each other.
Mercury in the Environment
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In this environmental science lesson, learners will examine the dangers of mercury and how humans contribute to growing mercury emissions on Earth.
Bat Echolocation Experiment
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In this activity, learners discover how bats use echolocation to get information about objects in their environment. During the activity, one learner whispers into a tube.
Fragile Waters
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In this activity (on pages 18-29) learners explore the impact of the March 24, 1989 oil spill in Alaska caused by the Exxon Valdez tanker.
Cartesian Diver
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In this demonstration, learners observe the effects of density and pressure. A "diver" constructed out of a piece of straw and Blu-Tack will bob inside a bottle filled with water.
Morphing Butterfly
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In this activity, learners explore how nanosized structures can create brilliant color.
Why Doesn’t the Ocean Freeze?
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In this activity, learners explore how salt water freezes in comparison to fresh water.
Pesticides and Eggshell Thinning
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This lab activity is about toxic substances like pesticides and their effects on biological systems. The activity starts with an introduction of how birds sequester calcium to make an egg.
Animal House
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The goal of this activity is to design, build and test a house or toy for an animal.
Spider Glider
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In this fun activity about spiders, learners build and design a spider from cardstock, straw, string, and pipe cleaners.
Temperature Time Warp
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In this activity, learners explore the behavior of cold-blooded animals. Learners discover what happens when they change a fly's temperature.
Transformation of E. coli Using Green Fluorescent Protein
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In this activity related to plant biotechnology, learners transform a strain of E. coli using green fluorescent protein from a bioluminescent jellies.
What is Light?
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In this four-part activity, learners will discover the exciting world of light--the most important form of energy in our world--and be able to identify and describe different types of light.
Dark Adaptation
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In this activity (6th on the page), learners investigate how photoreceptors in the eye (rods and cones) "adapt" to low light conditions.
Coral, Carbon Dioxide and Calcification
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In this group activity, learners act out key stages of the "ocean carbon cycle" (also known as the "carbonate buffer system") through motions, rearranging blocks and team tasks.
Crunch Time
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In this quick and easy activity and/or demonstration, learners use two empty 2-liter bottles and hot tap water to illustrate the effect of heat on pressure.
Our Sense of Hearing
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In this activity, learners investigate the sense of hearing and plan and conduct their own experiments.
Hexagon Hunt
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This activity gets learners looking at 6-sided shapes in nature, including the cells of a beehive, as well as other shapes.
Engineer an Octopus Suction Pad
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In this engineering design challenge, learners build an octopus-inspired suction pad that can grab an object and hold it tightly in the air.
Lever Cowboy
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In this activity, learners build a figure that moves and "comes to life" when they pull its string.