Science 10 - Students examined the basic properties of acids and bases today in class. Students learned that the main difference between acids and bases is the presence of H or OH. Tomorrow, students will either be conducting a lab investigating reaction rates (covered in Mondays class), observe a demo of what an acid is capable of (if the acid arrives in time), or learn about the pH scale and what it means.   Science 9 - Homework was checked and gone over briefly (answers are posted for review) and then students took care of recycling for the school.