This illustrated story is about a seven year old girl whose father works as a town forester. The story is interspersed with facts about trees and teaches children about urban forests, ecosystems, foresters, and photosynthesis as well as the differences between broadleaf, conifer, deciduous, and evergreen trees. Full description.

This website provides images to visually communicate programs, projects, and events of the US Army Corps of Engineers. The library consists of photographs, illustrations, artwork, clipart, logos, maps, and posters of a majority of the Corps of Engineers civil and military projects from around the world. Users may search by Division/Center, District/Laboratory, Project/Title, Location/State, Graphic ... Full description.

This site provides three dimensional reconstructions of ants, stag beetles, german cockroaches, mosquitos, grasshoppers, water strider, fleas, mantises, termites, yellowjackets, flies, bees and blackwidow spiders. These images, some of which are animated, provide a clean and safe forum for exploring entomology. The website also contains an online insect ecology lecture, and information on biosemiotics ... Full description.

Why are there sedimentary or igneous or metamorphic rocks in your backyard? What is the underlying geologic story that explains the shape of the world around you? The Teacher-Friendly Regional Geology Guides provide teachers with the tools to incorporate regional and local geology into the classroom. Using geologic history as a framework, the Guides examine rocks, glaciers, fossils, topography, minerals, ... Full description.

This collection of meteorological tutorials comes from the Central Institute of Meteorology and Geodynamics (ZAMG) in Vienna, Austria. The ZAMG has a broad range of research and publication activities, from daily forecasts to earthquake and geomagnetic research. This collection covers many weather phenomena, explaining behavior and relationships in hyperlinked lessons that feature many diagrams and ... Full description.

There are currently millions of man-made orbital ruins that make up "space junk". Space junk can be anything from hatches blown off space modules, paint fragments from the space shuttle, or satellites that no longer work. On this website you will help to capture junk that's floating out there in space. Each time you capture junk, you also find a short description of the junk, how it arrived in space ... Full description.

America has 95,000 miles of coastline. In this collection of images from NOAA, the user can view images of America's coasts and adjacent coastal regions. Images include early Nineteenth Century sketches and drawings and modern photographs of waves, rocky shores, sandy beaches, marshes, mangroves, seaside villages, and port cities. Full description.

This tutorial contains animations that illustrate factors related to seasons on Earth. There are two sets of animations. The first set establishes viewpoints for observing the seasons and the second set studies the seasons on a planet with a 40-day year. In some of the animations, the user can control variables such as time. There is also a PDF file that features a learning guide about the Seasons ... Full description.

This site is part of the Gulf of Maine Aquarium, and focuses on stream environments in Maine. Topics include: Maine's Water Roots, which looks at the human history of Maine as it can be traced along its waterways; What is a Stream?; Life in the Mainstream, Living on the Edge; A Role for Everyone, and Bibliography. Concepts addressed include water quality, watersheds, the hydrologic cycle, aquatic ... Full description.

This site is an online version of the interactive information kiosk located at Sabino Canyon Visitor's center, Tucson, Arizona. Menu options include: What is streamflow?, Where does the creek originate?, What happens to the creek?, Flash flooding in Sabino Creek, What is a sky island?, and Streamflow Scenarios. Full description.