Planet Impact is an interactive activity developed by the people at Amazing Space. Amazing Space, previously reviewed here, provides high-quality simulations and lesson plans for teaching Space Science. Planet Impact lets students launch comets at Jupiter to study the effects of speed, mass, and gravity on the trajectory of a comet. Students can change each of these variables, launch the comet, then read about the effects of changing each variable.
Applications for Education
Planet Impact is one of eleven good interactive activities developed by Amazing Space. The activities are appropriate for use in middle school and upper elementary school grades. Amazing Space furnishes suggested lesson plans with each interactive activity.
Here are some related resources that may be of interest to you:
The Planets in Orbit Visualized
A Tour of the Solar System
NASA Quests and Challenges