Students learn about dwarf planet classification through a researched-based instructional strategy called direct vocabulary instruction. Teacher guide and student activity sheet are included.

A basic overview of the dwarf planet Pluto. Links to information about the other planets and objects in our solar system are included.

View photos of Pluto from NASA's New Horizons probe.

Wikipedia, a publicly-maintained encyclopedia, provides an article on the dwarf planet, Pluto, including images, physical characteristics, history of its naming, the planet/dwarf planet debate, and more.

[Free Registration/Login Required] An informational text about Pluto being classified as a dwarf planet. A question sheet is available to help students build skills in reading comprehension.

This site, which is provided by the National Space Science Data Center of NASA, is a site with detailed information about Pluto, including planned missions to explore the planet in greater detail.

An information page all about Pluto! Learn about Pluto's size, path around the sun, temperature, location, and traveling partner Charon.

Visit this site and learn more about Pluto. Provides the answers to kids' most frequently asked questions.

A virtual journey through space offers photos and facts about Earth and its neighboring planets, comets, other celestial bodies of the Solar System, and the Milky Way and Andromeda galaxies.

This stunning site on the solar system gives a great overview of the planets and our sun. Learn about each object's size, vital statistics, and moons. Then go on for a more in depth look at these objects in the column on the left.

From ABC News in Science, this article discusses issues related to Pluto its removal from planetary status. The brief article also touches on the renaming and re-listing process of Pluto.

An illustration showing Pluto's and the other planet's orbits around the sun.

This regularly updated site chronicles research, key facts, and the reasons for downgrading Pluto from a planet to dwarf planet. Recent discoveries from the New Horizon spacecraft and months of archived articles are kept here as well.

This regularly updated site chronicles research, key facts, and the reasons for downgrading Pluto from a planet to dwarf planet. Recent discoveries from the New Horizon spacecraft and months of archived articles are kept here as well.