1. Presentation (90 Slides): This file contains the presentation in PDF format. To view the PDF file as a presentation, select "view" and then click "full screen mode." There is also a Microsoft PowerPoint version of this presentation. The PowerPoint version includes a link to the Google Slides version.Topics Include:*The Solar System (Sun, Planets, Moon)*Seasons and Shadows*Moon Phases and Tides*Constellations (Ursa Major, Ursa Minor, Orion)*Navigational Tools (sextant, astrolabe, compass, tel