"fluid dynamics simulator\"

Includes Simulated Martian Soil, as Used in NASA Studies.

This comprehensive collection features over 90 of the very best classroom-tested, hands-on activities for teaching basic astronomy, from the phases of the moon to simulating the expansion of the universe.

Explore the position of the planets around the Sun.

Provides a complete set of visual, digital and hands-on resources designed to support teacher instruction and provide students with the skills to master key concepts on the Sun, Earth and Moon.

Demonstrate the rotational motion of Earth on its axis, its orbit around the Sun, and the revolution of the moon around Earth with this high-quality model.