This resource provides information about Earth and space. In addition, there is a quiz provided.

Omar helps his parents sell things at the market. Join him while he learns about the relationship of the Sun, Moon, and Earth.

Nutation is a small cyclical motion superimposed upon the steady 26,000-year precession of the Earth's axis of rotation. It is mainly caused by the gravitational effect of the 18.6-year rotation period of the Moon's orbit. The main...

Eight hands-on lessons module in which students explore the characteristics of planet Earth, its moons, the sun, the solar system, planets, and the difference between science fact and science fiction.

Travel back in history and see the first men on the moon. See photos of the crew, the launch, the landing and more.

A lesson for third graders in which they learn about the rotation of the Earth on its axis and how this movement creates day and night. They also examine the orbit of the moon about the Earth and the Earth's orbit around the sun.

Explains the design of a simple device that shows the progress of the phases of the Moon on its 29 1/2 day orbit around the Earth.

Describes the logic behind the development of Newton's law of universal gravitation. Beginning with Johannes Kepler and his three laws of planetary motion, content walks the reader through Newton's thought process and development of this...

An excellent and thorough answer to the often asked question about high tide "bulges" on the side of Earth facing away from the Moon or Sun.

Find out about most volcanically active world in the Solar System, Jupiter's moon named Io.

This is the homepage of all of the archived information about and from the Galileo Mission. Included is data from the flybys of Venus, Earth, Moon, and Asteroids Gaspra and Ida, as well as the current data from Jupiter and its moons. See...

The learning module helps students gain a deeper understanding of gravity. Some topics explored are orbits, the mission to the Moon, and the first space walk. Activities and videos are included.

The story of America's first astronaut to orbit the earth during the Mercury Space program. After launching the program click on continue or on the numbers to learn about the story of the Mercury program and the first American to orbit...

In this online textbook produced by the Smithsonian, students explore the phases of the moon, the moon's orbit, the origin of the moon, and the tides. Includes numerous inquiry-based activities.

This is an extensive online review of the 17 Apollo missions. Resources are organized by mission number and include descriptions, mission details, photographs, and scientific data sets.

Students can see actual photos of a space shuttle launching from earth as well as the people who now could go because of technology. Learn about some of the equipment and vehicles used to make it happen.

This site provides a moving diagram of a Lunar eclipse, showing Earth's umbra and penumbra and the appearance of the Moon as it passes through these shadow regions.

A lesson plan that gives an overview of solar and lunar calendars, their history and lore. Also, of the day and the month, and their relations to the rotational period of the Earth and the orbital period of the Moon.For versions in...

Here is a clear, simple picture of the solar system. Click on the names of the planets to learn more about each. Clicking on underlined terms takes you to more and more detailed scientific information.

This site from the Astronomy Department of Cornell University provides brief introduction to both solar and lunar eclipses. Links are provided for pictures and charts of the eclipses, and this is a good site to check out on the subject.

Through illustrated examples and interactive practice, students explore Newton's ability to relate the cause for heavenly motion (the orbit of the moon about the earth) to the cause for Earthly motion (the falling of an apple to the...

There are eight planets in orbit around our Sun. These planets form our solar system. The eight planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. There are also rocks, moons, comets, and other objects going...

An introduction to our solar system: the planets, our Sun and our Moon. Students begin by learning the history and engineering of space travel. They make simple rockets to acquire a basic understanding Newton's third law of motion. They...

A science simulation launches a projectile from the top of a mountain testing Newton's theory introduced in Principia.