Sep 16, 2013 ... Introduction to Chemistry. 1.1 The Scope of Chemistry. 1.2 Chemistry and You.
1.3 Thinking Like a Scientist. 1.4 Problem Solving in Chemistry.
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1.2 Chemistry and You > Why Study Chemistry?
Why Study Chemistry?
Chapter 1 Introduction to Chemistry
What are three general reasons to study chemistry?
1.1 The Scope of Chemistry
1.2 Chemistry and You 1.3 Thinking Like a Scientist 1.4 Problem Solving in Chemistry
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1.2 Chemistry and You > Why Study Chemistry?
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1.2 Chemistry and You > Why Study Chemistry?
Explaining the Natural World Chemistry can help you understand how things work. For example:
Chemistry can be useful in: • explaining the natural world; • preparing people for career opportunities; and • producing informed citizens.
• why cut apples turn brown upon exposure to air. • why the texture of eggs changes from runny to firm as eggs are boiled. • why water expands as it freezes. • why sugar dissolves faster in hot water than in cold water. • why yeast makes bread dough rise.
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1.2 Chemistry and You > Why Study Chemistry?
Preparing for a Career
Preparing for a Career
Chemists contribute to society in many ways. You do not need to have the word chemist in your job title to benefit from understanding chemistry.
Chemists contribute to society in many ways. You do not need to have the word chemist in your job title to benefit from understanding chemistry.
• Reporters
• Turf managers
• Lawyers • Sick person
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9/16/13
1.2 Chemistry and You > Why Study Chemistry?
1.2 Chemistry and You > Why Study Chemistry?
Preparing for a Career
Being an Informed Citizen
Chemists contribute to society in many ways. You do not need to have the word chemist in your job title to benefit from understanding chemistry.
• knowledge of chemistry and other sciences can help you: • evaluate data; • arrive at an informed opinion; and
• A firefighter
• take appropriate action.
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1.2 Chemistry and You > Chemistry, Technology, and Society
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1.2 Chemistry and You >
Interpret Graphs
Waste produced (thousands of tons)
15,000
• Technology is the means by which a society provides its members with needs and desires.
12,500 10,000 7500 5000 2500 0
1960
1970
1980
1990
2000
2007
Year
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1.2 Chemistry and You > Chemistry, Technology, and Society
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1.2 Chemistry and You > Chemistry, Technology, and Society
Energy
Medicine and Biotechnology
There are only two ways to meet the rising global demand for energy—
Chemistry supplies the medicines, materials, and technology that doctors use to treat their patients.
conserve it
• Materials to repair or replace body parts.
produce more of it
• Hip joints
Chemistry plays an essential role in both of these options.
• Arteries
hybrid car batteries solar panels 11
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1.2 Chemistry and You > Chemistry, Technology, and Society
Energy Hybrid Car batteries Medicine and Biotechnology Insulin production Universe/Space Study Mars rovers Life on other planets
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