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Showing results 121 to 140 of 147

Bean Bugs
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In this outdoor biology and math activity, learners estimate the size of a population of organisms too numerous to count.
Leaves: Extracting Pigments
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In this fun, hands-on autumn activity, learners experiment to discover whether the colored substances in leaves can be separated from the leaves.

Mapping Greenhouse Gas Emissions Where You Live
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In this lesson plan, learners examine some of the of greenhouse gas emissions sources in their community.
Composting: A Scientific Investigation
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In this activity, learners conduct a scientific investigation involving decomposition and discover that the life cycle of trash is affected by its organic or inorganic nature.

Of Cabbages and Kings
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This lesson gives full instructions for making cabbage juice indicator, a procedure sheet for learners to record observations as they use the indicator to test materials, and extension activities to d

Cool Tool
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In this activity (on pages 10-17), learners discover how scientists study biodiversity and the health of the environment based on inspection of small areas—a process known as sampling.

Hold It
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In this outdoor activity/field trip, learners investigate the special shapes, holding structures and holding behaviors that real organisms use in streams, rivers, creeks or coast intertidal zones to a

Creating a Local Field Guide
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In this activity, learners survey living organisms near where they live or go to school, and create a local field guide.

Forces at the Nanoscale: Nano Properties of Everyday Plants
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This is an activity (located on page 3 of PDF under Nasturtium Leaves Activity) about surface tension.

Odors Aloft
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Learners smell balloons filled with different scents to guess what's inside. From this, they infer the presence and motion of scented molecules.

Sensory Hi-Lo Hunt
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In this outdoor activity, learners use only their senses to to find the extremes of several environmental variables or physical factors: wind, temperature, light, slope and moisture.

Environmental Chemistry
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In this activity with several mini experiments, learners explore the chemistry that helps scientists learn about the environment and how they can help save it.

The Water Cycle
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Did you know that the water we use today is the same water found on Earth millions of years ago? The Earth constantly uses and recycles water in a process called the water cycle.

Size Wheel
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In this fun sticker activity, learners will create a size wheel with images of objects of different size, from macroscopic scale (like an ant) to nanoscale (like DNA).

Can Fishing
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In this outdoor activity, learners go "can fishing" and discover the kinds of aquatic organisms that live in and on submerged cans.

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.

Rock Pioneers
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In this outdoor activity/field trip, learners investigate organisms that live along the ocean's rocky coast.

Flower Powder
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In this outdoor activity, learners use artificial bees and paper models of flowers to find out how bees transfer pollen from one flower to another.

Water Quality and pH Levels in Aquatic Ecosystems
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In this fun and in depth hands-on experiment, learners test various liquid samples (distilled water, lemon juice, vinegar, and baking soda mixed with water) to determine their pH levels and identify e

Living Clocks
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In this activity about daily rhythms (on page 17 of the PDF), learners will explore circadian patterns in humans, animals and plants.