Chapter 1Introduction to Chemistry

Ms. Wang

Lawndale High School

Matter

• Anything that has mass and occupies space

Chemistry

• Chemistry affects all aspects of life and most natural events

• The study of the composition of matter and the changes that matter undergoes

• There are 5 main areas of study in chemistry

• study of all chemicals containing carbon• Example: Athletes inhale chemicals developed

by organic chemists to control symptoms of asthma

1. Organic Chemistry

2. Inorganic Chemistry

• study of chemicals that generally do not contain carbon

• Example: Explain how a lack of calcium can affect the growth and repair of bones

3. Biochemistry

• study of processes that take place in organisms • Example: Study how the energy used for the

contraction of muscles is produced and stored

4. Analytical Chemistry

• study that focuses on the composition of matter

• Example: develop tests to detect chemicals in the blood

5. Physical Chemistry

• study that deals with the rate of how fast matter undergoes a change

• Example: study factors that affect breathing rates during exercise

Why Study Chemistry?

• Chemistry can be useful in explaining the natural world and preparing people for career opportunities

Why Study Chemistry?

• Chemistry supplies the medicines, materials, and technology that doctors use to treat their patients

Why Study Chemistry?

• Chemists play an essential role in finding ways to conserve, produce, and store energy

Why Study Chemistry?

• Chemists help to develop more effective ways to protect crops

Why Study Chemistry?

• Chemists help to identify pollutants and prevent pollution

The Scientific Method

• A logical, systematic approach to the solution of a scientific problem

Step 1 – Make Observations

• an observation usually leads to a problem or question

Step 2 – Formulate A Hypothesis

•propose an explanation for your observation

Step 3 - Experiment

• a procedure used to test a hypothesis

Step 4 - Analyze

• Record the results of the experiment

Step 5 - Conclusion

• Compare the hypothesis to the experiment’s conclusion

HOMEWORK

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