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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.

In this activity, young learners will make their own flower seed nursery in an egg carton.

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

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

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

In this environmental science activity (page 4 of the PDF), learners use vinegar and chalk to observe the effect of acid rain on various building materials and plant life.

In this outdoor activity, learners become beachcombers as they walk on a sandy beach in search of evidence of life.

In this activity, learners play NOAA's Carbon Tracker game and discover ways to keep track of carbon dioxide and other greenhouse gases in the world.