Enchanted Learning
Enchanted Learning: The Planets
This survey of the planets includes all the basics, size, mass, atmosphere, length of day, and the like. It features interactive activities and learning exercises and compares all of the planets in colorful tables.
Ducksters
Ducksters: Kids Science: Learn About the Dwarf Planet Pluto
Kids astronomy. What is Pluto like? How do we know about this dwarf planet?
Cosmos 4 kids
Cosmos4 Kids: Solar System: Pluto
Learn all about Pluto ..its discovery, basic facts, recognition as a planet, and most recently, its 'demotion' from a planet to a dwarf planet. The brief, to the point text makes this site most suitable for younger researchers.
Cool Math
Coolmath: Science Monster: Pluto
A cool fact sheet about Pluto including a place for students to enter their weight on Earth to convert it to what it would be on Pluto.
Washington State University
Washington State University: Ask Dr. Universe: Is Pluto a Planet Again or Not?
Dr. Universe answers this question after talking with WSU's Katie Cooper. Katie is an expert in the geology of Earth and objects in outer space.
Cosmos 4 kids
Cosmos4 Kids: Solar System Details: Kuiper Belt
Explore space beyond Pluto in the Kuiper Belt region of our solar system. Find out about the space bodies that exist there and what our space missions have taught us about this far away region.