Today we finished our Safety Notes in class that we went over yesterday. Students who turned in their yellow Safety Contract will receive an extra "free" 100 averaged into their grades. We started and almost finished a comparative investigation where the mass of different objects was compared and ranked from least to most massive.
Tomorrow there is going to be a safety quiz covering the lecture, demonstrations, and notes over safety. The safety contracts still need to be signed and returned for those that have not already done so.