This activity is a field investigation where students find out what makes up soil.

This activity is a field investigation where students find out what makes up soil.

In this video segment from NatureScene, observe some methods of plant identification with regards to the diversity of hardwoods at the Congaree Swamp.

This is a field investigation on diversity of life where students count the number of kinds organisms in two locations. Students report their results on posters and propose reasons why there might be difference in diversity between the locations.

This video segment from the Science and Technology Chat series focuses on dolphin pregnancy, birth, and care of the young, and features Atlantic bottlenose dolphins living in captivity at the Mirage Resort Dolphin Habitat.

This video segment from Kentucky Life explains the differences between dragonflies and damselflies and explores their habitats.

This activity is a bioassay lab where students tested the effect of an environmental toxin (fertilizer) on the growth rate of Duckweed.

In this video profile produced for Teachers' Domain, meet teacher Dustin Madden, an IŰ__ŒóíŠupiaq who hopes to inspire students to take an active role in protecting the natural environment by giving them a foundation in math and science.

Here you can find an engaging lesson plan on the trash each individual generates over time. Students will learn how trash is generated, how trash is disposed of, and possible ways to reduce the amount of trash.

This article presents thirteen web sites that provide resources for ELL students and their teachers. Reprinted from TeacherMagazine.org with author permission.

Market-based regulatory programs designed by the EPA, with information for consumers and industry cap-and-trade policies, Clean Air Act, and other government-sponsored efforts to reduce air pollution.

This resource provides information on watersheds, maps, activities, and links to local watershed information.

In this jigsaw, students will graph various Bald Eagle population numbers and determine the impact humans have had on the eagle. Specifically, they will investigate why the Bald Eagle was listed as endangered, the affects of DDT on eagles, and the affects of lead. Based on an original activity titled "Bald Eagle Population Graphing" from The Raptor Center, University of Minnesota http://www.cvm.umn.edu/raptor/prod/groups/cvm/@pub/@cvm/documents/asset/cvm_66866.pdf

This video segment adapted from NASA's Goddard Space Flight Center discusses how a drought can have negative effects locally, for example by increasing the number of forest fires, and also globally, for example by impacting air quality thousands of miles away.

This video segment adapted from NASA's Goddard Space Flight Center describes El NiŰ__ŒóíŠo, how it forms, and the chain reaction of consequences it triggers around the globe.

This video segment adapted from NASA's Goddard Space Flight Center explains how hurricanes develop and why there are fewer hurricanes in the Atlantic Ocean in strong El NiŰ__ŒóíŠo years.

This interactive activity from the Adler Planetarium explains the reasons for the seasons. Featured is a game in which Earth must be properly placed in its orbit in order to send Max, the host, to different parts of the world during particular seasons.

This list of carefully selected books for grades K-5 highlights nonfiction about climate proxies, those preserved physical characteristics, such as fossils, that scientists use to reconstruct past climates. Also highlighted are a few books that provide information about two past climatic events -- the last ice age and the Dust Bowl. In each issue of the free, online magazine Beyond Weather and the Water Cycle, the virtual bookshelf recommends books that accurately portray the theme drawn from the principles of climate sciences.

Learn about the different features of snow and ice in Antarctica using satellite imagery in this video segment adapted from NASA.

This field investigation allows students to collect and observe earthworms using liquid extraction to help develop background knowledge at the start of a new earthworm unit.