This simulation shows a simple band diagram for metals for Group 1A and 2A and the transition series. Each metal's valence orbitals combine to create a band that is responsible for the element's properties.

Electron orbitals. Diagonal rule. Dot diagrams. The periodic table. There's so much to know about the tiniest building blocks of life- atoms. [4:41]

An excellent overview of Hund's Rules. Discusses all three rules thoroughly with provided diagrams.

This webpage uses diagrams and video to explain the causes of the seasons.

Using diagrams, illustrated examples, and student practice this chemistry class tutorial explains quantum numbers.

Students perform many inquiry activities related to Earth's orbit. Included are recording daily temperatures, observing the sun's path over several weeks, tracking sunrise and sunset times, and angle of sunlight. Diagrams make lessons...

Students perform many inquiry activities related to Earth's orbit. Included are recording daily temperatures, observing the sun's path over several weeks, tracking sunrise and sunset times, and angle of sunlight. Diagrams make lessons...

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.

This site from Cornell University provides great information on the different phases of the moon. As the Moon moves in its orbit around the Sun, our view of the side illuminated by the Sun changes. Furthermore, the rising and setting...

An incredible interactive site with a wealth of well-organized information about black holes. Take a simulated journey to a black hole or try one of the interactive experiments in the Black Hole Encyclopedia to see if you can safely...

Looking for images of Jupiter or its moons? This is the place to start. Pictures are available from both Voyager missions, Galileo Orbiter and the Hubble Space Telescope. Choose from images of the planet, the ring, any of the Galilean...

A diagram of the solar system.

The planet Mercury is profiled with information about its size, mass, atmosphere, length of day, and the like. Features include interactive activities and learning exercises.

This slide presentation contains a description of the octet rule, as well as many related topics.

This site from Cornell University provides great information on the different phases of the moon. As the Moon moves in its orbit around the Sun, our view of the side illuminated by the Sun changes. Furthermore, the rising and setting...

This site from Cornell University provides great information on the different phases of the moon. As the Moon moves in its orbit around the Sun, our view of the side illuminated by the Sun changes. Furthermore, the rising and setting...

This site from Cornell University provides great information on the different phases of the moon. As the Moon moves in its orbit around the Sun, our view of the side illuminated by the Sun changes. Furthermore, the rising and setting...

This site from Cornell University provides great information on the different phases of the moon. As the Moon moves in its orbit around the Sun, our view of the side illuminated by the Sun changes. Furthermore, the rising and setting...