This is a well written test that is designed for middle school student or you can give this in an Earth Science class as a pre-test their knowledge. Has fantastic diagrams. 20 Multiple choice and 10 short answer. Topics: properties of light, rotation, revolution, orbits, seasons, phases, eclipses,types of stars, and a lot on orbital motions. I had to combine PDF so some of the pages are out of order. Comes with ANSWER KEY.