I decided to start the school year off with RSO Chemistry. Both of them have been begging to start Chemistry early. This lab is teaching them about physical and chemical tests so they can tell the difference between 3 different, but similar looking white powders (baby powder, powdered sugar and baking powder). They first used their senses to see if they could tell the difference. Then they systematically added liquids and compared reactions. They even got the bubbly reaction of baking powder and vinegar in there, always a favorite with the kids.