Chemistry


 * WHY IS CHEMISTRY IMPORTANT?**
 * WHAT IS AN ATOM?**
 * WHAT IS AN ELEMENT?**
 * WHAT IS THE PERIODIC TABLE?**
 * WHAT IS THE DIFFERENCE BETWEEN A PURE SUBSTANCE, A MOLECULE, AND A COMPOUND?**


 * In the discussion tab above, list something that you know about chemistry. It can be anything, something you remember from school or something that you have heard on TV.**