CHEMISTRY FAR AND WIDE Section 1.2. Objectives Understand and relate the impact of chemistry (and...
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Transcript of CHEMISTRY FAR AND WIDE Section 1.2. Objectives Understand and relate the impact of chemistry (and...
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CHEMISTRY FAR AND WIDE
Section 1.2
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Objectives• Understand and relate the
impact of chemistry (and chemists) on materials, energy, medicine, agriculture, the environment and the study of the universe
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IntroductionThe first tools were found objects
such as a stone with a sharp edge. In time, people learned to shape these objects to produce better tools
Chemistry plays a key role in the production of new materials
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MAterials• Chemists design materials to fit
specific needs
• There are ways of looking at the world:–Macroscopic–Submicroscopic
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Macroscopic View of Matter
• Large enough to be seen• You can touch, feel, smell, taste
and see
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Submicroscopic View of Matter
• Is a world so small that you cannot see
• You enter the world of atoms
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Energy• Chemists play an essential role in
finding ways to conserve energy, produce energy and store energy
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Conservation:One of the easiest ways to conserve energy is through the use of insulation
Recall: Insulator Material that does not aloud transferring heat and electricity
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Production:Sources to produce energy can be burning coal, petroleum, natural gas, …
What is biodiesel? Where can we use it?
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Storage:Batteries are devices that use chemicals to store energy that will be released as electric current when the batteries are working.Vary in size, power, operation hours, …
Where can we use batteries?
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Medicine and Biotechnology
• Chemistry supplies the medicines, materials and technology that doctors to treat their patients
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Medicine and Biotechnology
• Medicines: antacids, aspirin, … Knowledg of the structure and function of chemicals help a chemist design safe and effective drugs
• Biotechnology: produce chemicals of importance to humans, such as insulin, therapy to treat some diseases, …
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Agriculture
• Chemists help to develope more productive crops and safer, more effective ways to protect crops
• Chemists can help agtroculture by studying soil, protect crops, plague control, …
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The Environment
• Chemists help to identify pollutants and prevent pollution
• Chemists help to identify pollutanst and determinie a treatment to heal the environment, as well as prevent damages.
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The Universe
• To study the universe, chemists gather data from distant places and analyze matter taht is brought back to Earth
• Wtih the help from NASA, chemists study matter from other bodies in the solar system