1. WHAT is CHEMISTRY and WHY do we study it?

2. I CAN define CHEMISTRY and tell what chemists study and why.

3. Defining CHEMISTRY CHEMISTRY is the study of matter: – COMPOSITION – what it’s made of. – STRUCTURE – how it’s put together. – CHANGES – what changes can matter undergo.

4. Branches of Chemistry There are FIVE commonly recognized areas of study (branches) in chemistry: INORGANIC CHEMISTRY – studies compounds that DO NOT contain carbon. ORGANIC CHEMISTRY– studies carbon based compounds. BIOCHEMISTRY – studies chemical processes in living organisms.

5. ANALYTICAL CHEMISTRY – studies the composition of substances. PHYSICAL CHEMISTRY – studies the mechanisms (step by step how), rate (speed of) and energy changes that occur during chemical reactions.

6. Why do we study Chemistry anyway? While there are many reasons to study any science, they can be divided into two groups: PURE SCIENCE – scientific research simply to gain new knowledge. APPLIED SCIENCE – scientific research intended to solve a problem. – Applied Science is also known as TECHNOLOGY.

7. As learners, we study both pure and applied science for several reasons: To understand how the natural world works. To prepare for a career. To be an informed citizen.

8. Test your understanding! Read each of the following scenarios and decide which of the FIVE BRANCHES of chemistry would be involved (could be more than one!)

9. 1. A company does a clinical trial to study the effectiveness of a new drug to treat Alzheimer's disease. Biochemistry 2. Mineral Labs technicians test a coal sample from a new mine site. Analytical Chemistry 3. A research company creates a synthetic motor oil substitute from coal. Organic Chemistry

10. 4. A university lab studies ways to increase the rate of photosynthesis using a catalyst. Physical Chemistry (Biochemistry) 5. Archeologists want to find out the composition of pottery found at a dig site. Analytical Chemistry 6. Researchers look for uses of a newly discovered mineral. Inorganic Chemistry

11. Test Your Understanding…again! For each of the following scenarios, decide if it involved PURE SCIENCE or APPLIED SCIENCE. 1. A drug company works to perfect a new drug to treat pancreatic cancer. Applied Science 2. Astronomers study the gaseous composition of a distant nebula. Pure Science

12. 3. British Petroleum (BP) tests a new gasoline mixture created to boost mileage. Applied Science 4. An anthropologist studies the behavior of a band of gorillas. Pure Science 5. The transportation director of a school district studies the bus routes to determine the most efficient way to get student to and from school. Applied Science

13. Exit Slip 1. Which branch of chemistry would study the harmful effects of cigarette smoke? 2. Pure or Applied science? A cell phone manufacturer works to improve battery life for its newest phone models.