This U.S. Geological Survey (USGS) water resources site provides comprehensive coverage of water related issues, and includes several interactive quizzes and activities for children. Here you will find information on many aspects of water, along with pictures, data, maps, and an interactive center. Topics include: Earth's water, Water basics, Water use, Water Questions and Answers, Activity center, ... Full description.

Students participating in this lesson will collect, observe, and record particulates from the air to contrast visible and invisible air pollution. They then complete a simulation of the damage due to acid rain to illustrate invisible pollution. The lesson plan provides essential elements, objective, focus, a list of materials, background information, procedure, and ideas for enrichment. Full description.

This activity and demonstration teaches the concept of parallax (the apparent movement of an object caused by a change in the viewer's position) and relates the concept to a real-world astronomical event, ­the discovery of Pluto. It employs the Blink Comparator, an online simulation illustrating the technique used by Clyde Tombaugh to discover the ninth planet on February 18, 1930. Full description.

This resource offers information on the history and current management of sanctuaries, scientific and educational programs, and continuing efforts to conserve U.S. ocean and coastal treasures. The sanctuaries featured include: the Channel Islands, Cordell Bank, Fagatele Bay, Florida Keys, Flower Garden Banks, Grays Reef, Gulf of the Fallarones, Hawaiian Islands Humpback Whale, Monitor, Monterey Bay, ... Full description.

The Gulf of Maine Aquarium hosts this two-part activity. The focus is on seasonal changes in the mass balance of the Antarctic Ice Sheet. Part 1 uses an atlas and satellite imagery to examine the geography of the region and the changing boundaries of the ice sheet. Part 2 tracks annual changes in sea ice. There is an animation page showing changes in ice cover around Antarctica during 1991, and links ... Full description.

The majority of Ocean World is devoted to a series of ten reference sections: coral reefs, currents, El Nino, Fisheries, Ice Ages, icebergs, JASON-1 (a satellite), the role of the ocean in weather, satellites and ocean exploration, and waves. Each section culminates with an interactive quiz, links to sources of related real-time data, and a list of additional related links. Also available is a set ... Full description.

This site contains a series of six posters all relating to water education: wetlands, water use, waste water, navigation, ground water, and water quality. Each poster includes information about the topic as well as related classroom activities. The objective of the water-resources education program is to stimulate interest in and provide a basic knowledge of water resources for students in grades ... Full description.

In this lesson plan students learn about the varying sizes of ocean waves, what causes the variation, and where to find giant waves. Students will learn the parts of a wave, and discuss wave height, wavelength, and wave period. They will experiment with creating waves on the National Geographic Wave Simulator and discuss how geography affects waves. Full description.

Web Weather for Kids offers hands-on classroom activities for students to learn about selected severe weather phenomena. Each activity has step-by-step instructions, materials lists, and guiding questions for students. A Teacher Tips page offers implementation strategies for teachers. Phenomena covered include the formation of thunderstorms, lightning, and tornados. Students explore the concepts of ... Full description.

This Environmental Protection Agency (EPA) site focuses on the science and impacts of global warming or climate change, and on actions that help address global warming. It features games, events, and links to other relevant sites for kids and educators, including activities on climate and weather and the greenhouse effect. Full description.