Welcome to Chemistry! Expect to be challenged and to enjoy yourself as you explore the interesting behavior of the small pieces of matter called atoms that make up the world around us. Chemistry, like much of life, is best learned by doing—daily participation, hard work, and a positive attitude are essential for your success. Class will tend to be very interactive—so listen up, take notes, make sketches, ask questions, try things out, and work hard. Don’t be scared to be wrong! Scientists often find it is the experiments that do not go as expected that teach us the greatest truths about the physical world. Chemistry is a challenging class, but it is a very rewarding and capable challenge that you should rise to accept!