NASA
Nasa: Solar System Exploration
A website with various activities for different grade levels covering the subject of space exploration. Activities include building your own solar system, coloring pages, making models, and even a solar system cookbook.
National Geographic
National Geographic: Planetary Size and Distance Comparison
Students review the sizes of planets and their order relative to the Sun. They then learn about astronomical uses and create a model of the solar system that reflects planetary distances. Includes handouts and worksheets as well as a...