Science 10 - Corrected homework from the previous class on polyatomic ions. Spent about half of the class going over the homework and other examples to show students how they act in compounds. Briefly introduced molecular compounds and will go into further detail with those in the coming days.   Science 9 - Covered rockets, satellites, and the ISS today in class. Students will be getting their review tomorrow in class for the test coming up on Friday. Students should already be preparing on their own however and should continue to do so.