undergoes. Applied chemistry is the using chemistry to attain certain goals, in fields like medicine, agriculture, and manufacturing Pure chemistry gathers knowledge for knowledge’s sake Which Comes First? Pure Chemistry Usually comes first, applied later Called technology Or engineering Pure chemistry can explain behavior that has been used without knowing why Steel swords Applied Chemistry Can’t be good or bad Can be good or bad depending on use Branches of Chemistry Analytical Chemistry -studies composition of substances. Organic Chemistry -compounds containing carbon Inorganic Chemistry -substances without carbon Biochemistry- Chemistry of living things Physical Chemistry studies behavior of substances rates and mechanisms of reactions energy transfers Why study Chemistry Explain the natural world Why? Prepare for a career Directly- in a lab Indirectly- problem solving and thinking skills Be an informed citizen Vote Don’t get scammed Applied Chemistry Material Design Plastics Paints Nanotechnology Scale Macroscopic- Big enough to see Microscopic- Too small to see unaided Nanotechnology- manipulating individual atoms and molecules Applied Chemistry Energy Ability to do work Different types can be converted to each other Conservation More efficient conversion Insulation Production –new sources Storage- batteries, fuel cells Applied Chemistry Agriculture Production- fertilizers, soil tests Protection – pesticide, herbicide Medicine Drugs Materials- hips, artificial skin Biotechnology- using organisms as a means of production Applied Chemistry Environment- Pollution Eliminate sources Treatment once polluted Astronomy Remote analysis of stars from their light Analysis of extraterrestrial samples