Brightly colored printouts, maps, and graphics on the greatest land masses on earth. See how continental drift works, look up extremes, label maps, learn about latitude, longitude and other geography terms. Teachers will find a Landforms Quiz using the "Little Explorers Picture Dictionary."

The Earth's atmosphere is a thin layer of gases that surrounds the Earth. It composed of 78% nitrogen, 21% oxygen, 0.9% argon, 0.03% carbon dioxide, and trace amounts of other gases. This thin gaseous layer insulates the Earth from extreme temperatures; it keeps heat inside the atmosphere and it also blocks the Earth from much of the Sun's incoming ultraviolet radiation.

This survey of the planets includes all the basics, size, mass, atmosphere, length of day, and the like. It features interactive activities and learning exercises and compares all of the planets in colorful tables.

Even though the tundra is a frozen, windy place, animals survive there! See what animals make the tundra their home.

This comprehensive site provides a wealth of information about the seventh planet from the sun. Topics include rotational axis, size, mass and gravity, length of day, distance from the sun, and more. The information is supplemented with a number of activities that include a coloring page, quiz, and interactive puzzle.

Find over seventy different word families with common spelling patterns, and lists of elementary level words for each family.

A fantastic collection of information about the solar system. Includes information on all of the planets, the moon, the sun, asteroids, comets, meteoroids, and stars. Also find puzzles, a dictionary, quizzes, classroom activities, and crafts to do.

This site has an alphabetized list of inventions and inventors throughout history. You can also explore by era, topic or nationality.

Use this resource to explore each state to get facts, maps and symbols; learn about the presidents; read about bald eagles and dinosaur fossils found in the U.S., find fun and exciting patriotic crafts and more.