Discovery Education
Discovery Education: Classroom Planetarium
Create a classroom model of the solar system while teaching about relative size of all the planets, and each planet's distance from the sun.
NASA
Nasa: Mars and Earth: Science Learning Activities for Afterschool
This set of activities teaches students about the big picture of science using Mars as an example: how to collect data, use evidence, and look at models.
South Carolina Educational Television
Know It All: Solar System Simulation
Fourth graders will begin to understand the solar system by using and creating models to demonstrate the layout of the solar System.