This is a PowerPoint that covers the majority of the California State Science Standards for Astronomy.
This is an overview that goes from large to small scale. For example: Big Bang theory-->Galaxies-->Stars-->The Sun-->Formation of the Earth
I use this PowerPoint as a review for my general science students but as an overview for my AP Environmental Science students.
This PowerPoint has some great pictures so students can really visualize the concepts.
Let me know what you think and have fun presenting using this great PowerPoint!