Chemistry is the study of the composition of matter and the changes that matter undergoes Matter...
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Transcript of Chemistry is the study of the composition of matter and the changes that matter undergoes Matter...
![Page 1: Chemistry is the study of the composition of matter and the changes that matter undergoes Matter is.](https://reader036.fdocuments.in/reader036/viewer/2022062422/56649efa5503460f94c0cd2a/html5/thumbnails/1.jpg)
Chemistry
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Chemistry is the study of the composition of matter and the changes that matter undergoes
Matter is
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The 5 traditional areas of study◦ Organic chemistry – chemicals containing carbon
◦ Inorganic chemistry – chemicals that do not contain carbon
◦ Biochemistry – processes in organisms
◦ Analytical chemistry – composition of matter
◦ Physical chemistry – mechanism, rate and energy when matter undergoes a change
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Pure Chemistry – when a scientist pursues knowledge just to gain the knowledge
Applied Chemistry – when a scientist directs his research toward a goal.
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Chemists aid in conserving, producing and storing energy.
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Chemistry supplies medicine, material and technology for doctors.
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Chemistry plays an important role in agriculture◦ Jellyfish gene in potatoes
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Chemistry identifies pollutants in the air and finds ways to prevent pollution.
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Chemistry stems from alchemy
◦ Alchemist searched for a way to turn other metals into gold
◦ They also searched for the elixir of life
Alchemist developed tools and techniques used in chemistry
From the begining
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Antoine-Laurent Lavoisier (sometimes referred to as the father of chemistry) transformed chemistry from an observation to a measurement science.
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1. State the problem2. Collect information3. Form a hypothesis4. Test hypothesis5. Make observations6. Record and study data7. Draw a conclusion
The Scientific Method
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Theory vs. Law
Theory – well-tested explanation. A theory can be changed if new information arrises
Law – statement that summarizes the results of many observations. Does not explain the relationship
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Parts of an experiment
◦ Manipulated variable – variable you change during experiment (independent variable)
◦ Responding variable – variable that is observed during the experiment (dependent variable)
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Scientist collaborate and communicate often
The more they collaborate the better their outcomes will be.
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Graphs
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Title on graph
Appropriate labels on each axis and units
Graphs