NASA
Nasa: Space Place: Messenger: Planet Mass Comparison
Compare the masses of planets in this interactive animation. Simply pile a number of Earths on one side of the scale, to balance with the mass of one Jupiter. Then try this with all the planets.
US Environmental Protection Agency
Epa: Learn the Issues: Chemicals & Toxics
This site provides real-world issues as well as the scientific research and technology used to support the EPA's mission to protect human health and safeguard the natural environment.
Nine Planets
The Nine Planets: An Overview of the Solar System
A detailed overview of the history, mythology, and current scientific knowledge of each of the planets and moons in the solar system.
Web Elements
Web Elements Periodic Table: Mercury
An excellent summary of basic information on mercury, including chemical and physical properties and uses.
Read Works
Read Works: What Is the Solar System?
[Free Registration/Login Required] An informational text about the solar system. A question sheet is available to help students build skills in reading comprehension.
Read Works
Read Works: What's Up in Space?
[Free Registration/Login Required] An informational text about outer space. A question sheet is available to help students build skills in reading comprehension.
Encyclopedia Mythica
The Encyclopedia Mythica: Mercury
A brief description of Mercury, the Roman god of trade, profit, merchants, and travelers.
Centers for Disease Control and Prevention
Centers for Disease Control: Atsdr: Superfund Hazardous Waste Sites
Extremely detailed look at the dangers associated with the hazardous and solid waste sites in the U.S.
Soft Schools
Soft Schools: Space: Solar System Interactives
Identify the planets in our solar system and discover how much you weigh on another planet with these space interactives.
Amethyst Galleries
Amethyst Galleries: Minerals: Mercury
This resource provides information on Mercury.
NASA
Nasa Star Child: Space Probes to Mercury
Simple information about the first space explorer to visit Mercury. Good picture of the Mariner 10 probe. Links to a glossary of terms.
A&E Television
History.com: The Space Race: Interactive Universe
A virtual journey through space offers photos and facts about Earth and its neighboring planets, comets, other celestial bodies of the Solar System, and the Milky Way and Andromeda galaxies.
NASA
Nasa Star Child: Star Child
StarChild from NASA defines and describes the Solar System in a simple and easy-to-understand manner. The website is broken down into two versions for the student, grade school and junior high.
Other
The Apollo Society: The Solar System
Contains a small set of images of solar system objects and a series of links to information about all solar system objects. Solar System Tours link to excellent image collections.
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.
European Space Agency
European Space Agency: Esa Kids: Our Universe: Mercury
A basic overview of the planet Mercury. Links to information about the other planets and objects in our solar system are included.
Views of the Solar System
Views of the Solar System: Mercury
Discover interesting information about the planet Mercury through a vast archive of photographs and scientific facts.
Cool Math
Coolmath: Science Monster: Mercury
A cool fact sheet about Mercury including a place for students to enter their weight on Earth to convert it to what it would be on Mercury.
CNN
Cnn: Alan Shepard Was a "Pretty Cool Customer" July 22,1998
Biography and obituary of Alan B. Shepard. He was America's first space traveler. This site has links to related sites about Shepard and the early days of the space program.
NASA
Nasa: Astronaut Biography: Scott Carpenter
The numerous accomplishments of astronaut/aquanaut Scott Carpenter are discussed in this biography. The biography details his work with NASA and the U.S. Navy and discusses his life after retirement.
CK-12 Foundation
Ck 12: Earth Science: Planets in Our Solar System Study Guide
A quick overview of the eight planets in our solar system.
University of Texas at Austin
The University of Texas Mc Donald Observatory: Mercury
Discover interesting facts about the tiny planet Mercury, the closest planet to the Sun.
Science Buddies
Science Buddies: How Big Are the Planets in Our Solar System?
This activity explores the relative size of the eight planets that circle around the Sun.