Planets (Science Matters)

Provides information about the planets in the solar system, listing facts about planet sizes, names, orbits, moons, and composition, and discussing how the planets are observed and studied.

Contents:

Studying planets 
Planets in the past 
Planet parts 
Planets on the move 
solar system map
Planet people
Planet probes 
Peeking at planets 
Surfing our solar system
Science in action
What have you learned?