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THE ROLE CHEMISTRY HAS IN OUR LIFE

THE ROLE CHEMISTRY HAS IN OUR LIFE. CHEMISTRY’S RELATIONSHIP TO GLOBAL CLIMATE CHANGE. What is chemistry’s role in your life?. Synthetic Material Pharmaceuticals Cosmetics Cleaning Products Industrial Processes. Need pictures of some of these Items in the slide. Climate Change.

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THE ROLE CHEMISTRY HAS IN OUR LIFE

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  1. THE ROLE CHEMISTRY HAS IN OUR LIFE CHEMISTRY’S RELATIONSHIP TO GLOBAL CLIMATE CHANGE

  2. What is chemistry’s role in your life? • Synthetic Material • Pharmaceuticals • Cosmetics • Cleaning Products • Industrial Processes Need pictures of some of these Items in the slide

  3. Climate Change • UV radiation travels from the sun through space and strikes surfaces on the earth • Radiant energy is absorbed and some transferred into thermal energy which radiates back out into space • Some of that heat is trapped in molecules of the atmosphere (CO2, H20, CH4) • These gases increase the temperature of the atmosphere Need a graphic that shows global warming

  4. GREENHOUSE GASES • CO2, H20, CH4, and NO are greenhouse gases • They hold heat because of the flexibility of the bonds in the molecule • Stretching, bending, twisting, rotation, and vibration of bonds allows kinetic energy to be stored • Nitrogen and oxygen has do not have the same flexibility as the green house gases.

  5. THIS IS A SUGGESTION PAGE • I might make the last slide up into two slides and add some graphics. • Show the flexibility of a carbon dioxide, water, or methane bond (1ST SLIDE) • Show how nitrogen and oxygen do not have that flexibility. (2ND SLIDE)

  6. Nutrient Cycles • The exchange of elements from biotic to abiotic reserves in a ecosystem • Those elements that are cycled are water, carbon, nitrogen, phosphorous. • The imbalance of nutrients with these cycles presents problems for the ecosystem • Human activity has made a great impact on these cycles.

  7. NITROGEN CYLCE • Air --- nitrogen gas (NOx) • Soil – nitrates and ammonia • Nitrogen Fixation • Biotic – Proteins and Nucleic Acids • Water – nitrates Need a graphic of the nitrogen cycle

  8. CARBON CYCLE • Lithosphere – historically are the two largest reservoirs for carbon • Lithosphere – carbonates, fossil fuels • Hydrosphere – carbonates and dissolved carbon dioxide gas • Biotic – carbohydrates, proteins, nucleic acids • Air – carbon dioxide and methane Need a graphic of the carbon cycle

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