A lengthy scholarly article that discusses the geologic time scale, its history of development, age-dating events that occurred in different eras, and how absolute and relative dating are used to assess the ages of the Earth and Moon....

This lesson plan from the Illinois Institute of Technology demonstrates the causes of; day and night, seasons, and phases of the moon.With a few items, you help the elementary student discover why these phenomena occur.

Explore the mythology, structure, observational history, gravitational force, and orbit of Earth's Moon.

In this animated video segment adapted from NASA, astronomer Doris Daou explains how the forces of speed and gravity keep the moon in a constant orbit around Earth. [1:36]

This mesmerizing video shows seven views of the earth taken by NASA's camera. Watch the moon cross over the earth, storms in the ocean, and smoke from a wildfire. Included are teaching tips for teachers and background information.

This resource gives a detailed explanation of the stages that the Earth and the solar system went through beginning with their origins in the Big Bang up to the present time.

Find lots of information about our planet Earth here. Covers basic facts, Earth's history, layers of the Earth, plate tectonics, composition of the atmosphere, Earth's magnetic field, and some facts about our moon.

Excellent Eight Planets site that provides a vast amount of information about planet Earth. Very comprehensive and complete site.

An interactive simulation that teaches about gravitational force, circular motion, and astronomy by manipulating the sun, earth, moon, and a space station to observe the effects of gravity and orbital paths. This simulation can either be...

Discover interesting facts about Earth's partner, the moon, which is more like a double planet than a planet and a moon.

A variety of hands-on activities designed to engage children in learning about the moon.

Observe the night sky and speculate the distance between the Earth and its moon and Saturn and its moon. Explore how scientists have used robots to learn about celestial bodies, and conduct research about one of Saturn's moons.

Dust, a common and usually minor problem on Earth, presented a major challenge for the Apollo astronauts on the Moon. Here's an interesting solution created by the Apollo 17 crew.

The students work in teams of two to discover the relative positions of the Earth, Sun and Moon that produce the different phases of the Moon. The students will be given a Styrofoam ball that they will attach to a pencil so that it looks...

In this task, learners investigate why total solar eclipses are rare. They will learn that, in addition to requiring the positioning of the Sun, Moon, and Earth, the Moon can only completely block out the Sun when it is closest to the...

A profile of the ancient Greek mathematician, geographer, and astronomer, Eratosthenes. Looks at his many accomplishments, including measuring the circumference of the Earth and the distance to the Moon and the Sun. Includes links to...

An ebook filled with information and classroom activities covering several astrological topics such as the Earth's rotation and the solar system. Many tips and teaching tools are available to aid in discovering what the sky has to offer.

This site focuses on the author Jules Verne. It includes a link to his biography and links to the full text of eleven novels: 20,000 Leagues Under the Sea, Around the World in 80 Days, Eight Hundred Leagues on the Amazon, Five Weeks in a...

This site from Cornell University provides a discussion of how Aristarchus arrived at his conclusions of the distance from the Earth to the Sun and Moon. Also has his methods for determining the size of the Moon and the Sun.

This video segment adapted from NOVA goes on a whimsical journey in search of life forms thriving in extreme conditions on Earth and in outer space. Animations show ice on Jupiter's moon, Europa, and signs that water once existed on...

"Astronomy is the science that studies the Earth, the Moon and other objects in space. It has helped us discover our place in the physical universe. It is still making discoveries." This landing page gives options for students and...

Andy Cohen details the extraordinary celestial phenomenon of a total solar eclipse, and when it will next occur. [3:47]

The Earth, the moon, the stars and just about everything in between has a magnetic field, and scientists use magnetometers when they need to know the strength of those fields.

This site from NASA has information on the Galileo space mission, which launched in October 1989. In spite of technical problems, Galileo transmitted enormous amounts of new data, especially about Jupiter and its satellites and rings,...