An excellent reference site for the planet Neptune. Loads of images, links to even more detail, a short table of planetary statistics, and lots of information.

This activity explores the relative size of the eight planets that circle around the Sun.

Learn fun facts and details about the atmosphere, composition, and discovery of Neptune, the last planet in our solar system.

From ABC News in Science, Irene Klotz's article discusses research related to the possibility of Neptune having "nabbed" its moon, Triton, from some passing sister planets.

Students explore the outermost planets of our solar system: Saturn, Uranus and Neptune. They also learn about characteristics of Pluto and its interactions with Neptune. Students learn a little about the history of space travel as well...

These hands-on activities are a great way for students to gain perspective on the relative sizes and distances of each planet, the relationship between the sun and Earth, and much more.