Has the solar system always been like it is today? A lesson presentation begins with a discussion of the formation of our solar system. It continues with a compare and contrast of the inner and outer planets. 

High schoolers work together to develop a classification system for planets. They take a class vote and read an article about an astronomer's classification system. They write an essay on how scientists make decisions for the general...

Students download NASA Hubble Space Telescope views of star-forming regions in nebulae and look for evidence of planetary systems forming beyond our own solar system. They hypothesize about mysterious objects in NASA HST images.

Looking to take a trip? Why not go to space? Here, scholars take on the role as travel agent to create a guide to their favorite planet including travel tips and sightseeing recommendations. 

Neptune takes 164.8 Earth years to travel around the sun. In the fifth of 22 lessons, young scientists create a travel guide to a planet in our solar system. They provide tips for others on what to bring, what they see, and their...