Teach the concept of scale models and the size of the solar system through this extensive lesson plan. Students will learn about scale models, estimate which objects to use to create a scale model of Earth and Sun, and figure out how far...

Explore the mythology, structure, observational history, gravitational force, and orbit of Earth's Moon.

See if you can identify the positions of the 9 planets in our solar system. Take an online quiz and get feedback on your answers.