Science 10 - All classes covered word equations and the Law of Conservation of Mass today. Students were assigned homework questions that will be checked on Thursday. Students should read the section associated with the questions if they are having difficulties with them.   Science 9 - Students worked on a case study today in groups dealing with spontaneous generation and disproving the theory of spontaneous generation. These will be handed in on Thursday. Most students were able to finish their sections on their own but some were not and must complete it for homework.