It's good thing that it isn't up to RJ to spin the earth on its axis; he can't even keep a basketball spinning! In this video animation, he and viewers learn about Earth's movements in space. One thing to consider before you use this...

Use this during the season of teaching about the seasons! As Earth revolves around the sun, its tilt causes the weather to change. The graphics in this presentation show how Earth's position in space has an effect on the angle of...

Stunning images make up this slide show on the inner planets of our solar system. While visiting Mercury, Venus, Earth, and Mars, viewers also are introduced to the International Space Station and the Spirit Rover on Mars. Follow this...