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Discover how the salt in soil affects plant growth with a few seeds, some cotton, and salt. In this hands-on activity, you will plant seeds in 2 different kinds of soil, containing more or less salt.

This creative lesson plan provides a visual way for learners to gain knowledge about the finite amount of fresh water on Earth and encourages the discussion of the various ways to conserve this resour

In this activity, learners will examine various world data maps to combine the information and predict which areas could be tropical rainforests.

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

In this activity about dinosaurs and survival, learners use scrap materials to create a miniature dinosaur habitat that includes a food source, water source, and shelter.

In this activity related to climate change, learners create and explore topographical maps as a means of studying sea level rise.

In this activity, learners explore the size and scale of dinosaurs. Learners listen to "The Littlest Dinosaurs" by Bernard Most. Then, learners estimate the size of a Triceratops and T.

In this activity on page 24, learners perform experiments to examine whether or not trash can float, blow around, or wash away.

In this activity on page 27, learners perform an experiment to learn about how different types of marine debris degrade and how weather and sunlight affect the rate of degradation.

Many people get water from a source deep underground, called groundwater.

In this matching game, learners study the limits of life on Earth to see what other places in the solar system might sustain microbial life.

In this activity, learners compare and contrast their own skin (including the area covered) with that of an orange.

This fun and simple hands-on astronomy activity lets learners explore the difference between telescope magnification and resolution.

In this activity, students will learn some key information about a San Francisco native animal and then write a firsthand account of their experience from the perspective of that animal in the time be

This activity attempts to clear up the common misconception that deserts are always hot, totally dry, and uninhabitable.

Learners build particulate matter collectors--devices that collect samples of visible particulates present in polluted air.

In this two-part activity, learners investigate buoyancy, density and surface area as well as biodiversity and the relationship between the structure and function of organisms.

In this activity, learners examine ways that Native Americans of the Southwest express their relationship with nature through art.

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

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