US Geological Survey
Usgs: Geologic Time
This large U.S. Geological Survey site offers a look at the age of the earth, how radiometric dating is used to calculate it, the major divisions of geologic time, and the classification and use of fossils.
Fourmilab Switzerland
John Walker: Earth and Moon Viewer and Solar System Explorer
This website provides numerous images of the Earth and moon, shown from various vantage points.
Other
Spacetech's Orrery: Earth Our Home Planet
This site provides a very interesting overview of our home planet, Earth. Content includes a focus on the atmosphere, the pull of gravity, and the active surface.
Smithsonian Institution
National Air and Space Museum: Looking at Earth
Resource provides information on studying Earth from space. Content includes many satellite images, as well as information gathered for environmental research, and many educational resources.
Purdue University
Purdue University: Earth's Interior Structure
Purdue University provides a great lesson plan for learning about the Earth's interior structure. Focuses on the crust, mantle and core. Also includes examples and great charts that students will enjoy looking at.
Extreme Science
Extreme Science: How Old Is the Earth?
We say Earth is 4.6 billion years old, but how do we know? How do we measure its age? This article focuses on these questions and how long life has been on Earth.
University of Victoria (Canada)
Weather Watch: Water Cycle
Excellent discussion and illustration of the water cycle. Explained in an easy to understand format.
NASA
Nasa: Planetary Photojournal
This NASA site provides access to publicly released images from various Solar System exploration programs.
NASA
Nasa: Planetary Data Sytem: Welcome to the Planets
Collection of images, with vocalized explanatory captions, of the planets acquired by NASA as part of its exploratory space programs.
NASA
Nasa: Planet Quest: Extreme Planet Makeover
Activity in which students create a planet based on distance from a star, age, size, and star type. The created planet is evaluated to determine if it can support life.
Rice University
Museums Teaching Planet Earth: What Is the Geosphere?
Describes Earth's layers, which make up the geosphere.
University Corporation for Atmospheric Research
Ucar: Fact Sheet for El Nino
This site from the Univ. Corp. for Atmospheric Research provides detailed information on El Nino and its effects on the trade winds is offered at this site, with satellite photos.
The Tech Interactive
Tech Museum of Innovation: Inside the Earth
As an overview of the online exhibit on earthquakes, this site discusses the various sections inside the Earth. The crust, the mantle, and the core are each individually discussed.
Other
Astro Mia: Tierra, Sistema Solar Y Universo
This site is a good resource to study Astronomy. It has six sessions: the Universe, the solar system, the earth and the moon, history of Astronomy, articles, famous astrologers and a glossary.
PBS
Pbs Teachers: Helping Kids Help the Environment
Define and explore the concept of environmental citizenship through a series of literacy-based multimedia, online and hands-on learning experiences. Discover how responsible citizens can help protect their local communities by...
Utah State Office of Education
Utah State Office of Education: How Does Earth Impact Other Systems?
Have you ever noticed how some of the continents and land masses of Earth seem to fit together like pieces of a puzzle? This unit is designed to help you understand why continent shapes appear that way. In addition you will learn how...
NASA
Nasa Earth Observatory: Changing Global Land Surface
Learn how scientists view the changes in the land surface made by humans over time. Read questions that scientists pose to answer some unknown questions about global land surface and learn several things scientists are doing to try to...
Enchanted Learning
Enchanted Learning: Zoom Astronomy: The Earth's Atmosphere
Site provides information on the Earth's atmosphere as well as offers additional information about Earth.
Physics Classroom
The Physics Classroom: Circular and Satellite Motion: The Value of G Interactive
Students investigate how the force of gravity varies with location on Earth. They are challenged to find the pattern in their findings.
Cool Math
Coolmath: Science Monster: Earth
Read about the vital statistics, composition, and other facts about our home planet, Earth.
Ambleside Church of England Primary School
Ambleside c.e. Primary School: Your Weight on Other Planets
Students enter their weight here on Earth, and find out how much they would weigh on the moon and other planets.
Center for Educational Technologies
Nasa: Classroom of the Future: Spheres: Lithosphere
At this site from the NASA Classroom of the Future, you can learn about the many different layers of the earth and see what the earth would look like cut in half.
European Space Agency
European Space Agency: Esa Kids: Our Universe: Earth
A basic overview of the planet Earth. Links to information about the other planets and objects in our solar system are included.