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In this outdoor activity/field trip, learners locate and study plants and animals in several freshwater pond habitats.

In this activity, learners explore how engineers work to solve the challenges of a society, such as efficient planting and harvesting.

Learners create a model of a wetland to observe how it absorbs and filters water from the environment.

This three-part lab helps learners understand the essential principles governing diffusion and osmosis.

In this activity, learners observe the effect of transpiration as water is moved from the ground to the atmosphere.

In this environmental science activity, learners research what is essential for plant life and the necessary components of soil to support plants.

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

In this activity, learners build one or more edible coral polyps and place them together to form a colony.

In this activity, learners create a freshwater ecosystem in a large plastic bottle. Learners cut and prepare bottles, then fill with water, aquatic plants, snails and fish.

In this outdoor activity, learners investigate the relationship between the slope of a trail and soil erosion.

This activity (located on page 3 of the PDF under GPS: Temperate Rain Forest Activity) is a full inquiry investigation into biodiversity of a given habitat.

In this activity, learners make a miniature greenhouse or "terrarium" to explore the greenhouse effect.

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

An estuary is a body of water that is created when freshwater from rivers and streams flows into the saltwater of an ocean.

Water treatment on a large scale enables the supply of clean drinking water to communities.

How does a green roof, or roof covered by plants, affect the temperature of the inside and outside of a building? Learners design and build houses to find out the answer.

In this environmental science lesson, learners will examine the dangers of mercury and how humans contribute to growing mercury emissions on Earth.

Learners place cut flowers in colored water and observe how the flowers change. The flowers absorb the water through the stem and leaves.

In this activity, learners explore the human influences on the carbon cycle and examine how fossil fuels release carbon.

In this activity, learners build penetrometers to test leaf toughness. Biologists measure leaf toughness to study the feeding preferences of insects and bugs.