This United States Geological Survey site focuses on water and its properties. The site contains activities for teachers and students, along with pictures, data, maps, and an interactive center where users can give opinions and test their water knowledge. Unique aspects of this site include the sections that contain student work and a picture gallery. There are links to other resources for students, ... Full description.

The Estuary LIVE site provides interactive virtual field trips to estuaries. The site contains an online registration form and schedules of broadcasts. There are also lesson plans such as: Estuarine Habitats, Marsh Mystery Water, Estuary Bird Study, and Down the Drain. The reference section contains photographs and movies to use in multimedia projects; shark and hurricane facts; information on National ... Full description.

These interactive exercises are designed to help students learn about river processes like discharge, flooding, and flood frequency. Each activity requires them to make careful observations and measurements, do simple calculations, and answer questions about their work. An interactive feedback and answer checking function checks their work. A Certificate of Completion is available at the end of each ... Full description.

The National Marine Sanctuary Program identifies, designates and manages areas of the marine environment of special national significance due to their conservation, recreational, ecological, historical, research, educational, or aesthetic qualities. Access information and pictures of marine sanctuaries all over the U.S. and its territories. Discover ways to get involved with the sanctuary program, ... Full description.

The purpose of this resource is to develop a classification system for a set of objects and learn about hierarchical classification systems. Any set of objects, such as insects or rocks, may be used as well. Full description.

The purpose of the resource is to measure the different types of fuels for fires. Full description.

The purpose of this resource is to observe the flowering and leaf stages of selected garden plants throughout the year. After a phenological garden is planted, students observe the growth of leaves and blooming of flowers on the plants. These plants were selected because each plant blooms at a different time in the year. Full description.

The purpose of this resource is to observe when selected bird species first arrive at your study site, and to count the numbers until few or none of these birds are seen. Students select a common and easily identifiable bird species in their region and observe when the bird species first arrives. Students use binoculars or telescopes to scan a study site and count how many they see. They continue ... Full description.

The purpose of this resource is to observe budburst on selected trees at a Land Cover or Phenology Site. All students will learn about hummingbird natural history and ecology. Students will learn how to identify and age male and female Ruby-throated Hummingbirds and to observe migration and feeding behavior. Students will learn how to make connections among hummingbird behavior and weather, climate, ... Full description.

The purpose of this resource is to identify specifically how one's own region is connected with others, and to discover the interconnected nature of the Earth's regions as systems. Students brainstorm about the nature of connections between their region and others, across oceans and on different continents. On a black-line map of the world, they trace possible pathways of water and wind currents from ... Full description.