(Also good supplementary classes would include my volcano and Earth's Mag Field classes) 
Weekly Breakdown:

Week 1: 
Astrobiology defined and what kind of life scientists expect to find
Places to Search for life in our Solar System
The size of our Solar System then compared to the Universe w/ pics and a video for reference
End of class I will tell students about the "creating their own planet" projects

Week 2:
Numbers- How big are a million, billion, trillion
Where we are located in our...