Demonstrate and calculate the reasons for tidal bulges of water on both hemispheres of Earth, due to the Moon.

Make observations and use available data and simple calculations to correlate observations and data in the characterization of stars. In this activity, students can discover that the positions of stars in the sky illuminates information about the Milky Way galaxy.

Make observations and use available data and simple calculations to correlate observations and data in the characterization of stars. In this activity, the distances of bright stars are calculated and their motions, in the plane of the sky and in three dimensions are illuminated.