Chapter 1: Introduction To Chemistry

Section 1.1: Chemistry

• What Is Chemistry?• “Chemistry is the study of the composition of

matter-the stuff things are made of-and the changes that matter undergoes.”

• The Five Major Areas of Study• 1: Organic Chemistry- the study of essentially all

substances containing carbon.• 2: Inorganic Chemistry- Substances that do not

contain carbon.• 3: Analytical Chemistry- Composition of

substances• 4: Physical Chemistry- theories and experiments

that describe the behavior of chemicals.• 5: Biochemistry- the study of the chemistry of

living organisms.

Section1.2:Chemistry Far And Wide

• Energy• Chemistry is creating new energy

conservation methods.• Energy-efficient fuels.• Sodium lamps used to light up the roads.• Plants capture the sun’s energy to create food

using photosynthesis.

Section 1.2:Chemistry Far and Wide

• Medicine And Biotechnology• Scientists have the ability to determine the spatial

arrangement of atoms in complex biological molecules such as proteins. Substances such as vitamin C, penicillin, and aspirin are created using this.

Section1.2:Chemistry Far And Wide

• Agriculture • Chemistry is used to develop hardier and more

productive plants.

Section1.2:Chemistry Far And Wide

• The Environment• Chemists work with Environmentalists to solve

problems in the environment with pollutants.• Every year the amount of Carbon Dioxide (CO2) in

the atmosphere increases and global warming gets worse.

• The carbon dioxide acts as an isolator of the earth, light rays travel into the atmosphere, reflect back off the earth but the carbon dioxide keeps red light in, which is also heat energy.

Section1.3:Scientific Method

• Scientific Method- one logical approach to the solution of scientific problems.

S c ien tific M eth od

O b serva tion s H yp o th es is E xp erim en ts Th eory

Section1.3:Scientific Method

• Observation-Using you senses to obtain information directly.

• Hypothesis-proposed explanation or reason for what is observed.

• Experiment-a means to test a hypothesis.• Theory- a broad and extensive tested

explanation of why experiments give certain results. S c ien tific M e th od

O b serva tion s H yp o th es is E xp erim en ts Th eory