AVATAR “This is why we're here, because this little gray rock sells for twenty million a kilo.” "They have something we want, they won't let us have it, and that justifies us fighting them to get it, that's how it works." "She says that all energy is only borrowed; at some point you have to return it.” Write a reflection statement in your notebook. Relate these quotes to the idea that Great power demands great responsibility; that a balance of power promotes stability.
List below the Pros and Cons of nuclear power in our society. Group position: Is harnessing the “Power of the Atom” the solution to our environmental crisis? Is it worth the risk? Facilitator Time Keeper Recorder
April 26, 1986 http://library.thinkquest.org/3426/data/introduction/index.html
Nov 21, 2004- Chernobyl Disaster ( Cesium-137) Caused Cancer Cases In Sweden Chernobyl linked to cancer in Europe21 November 2004 08:44 Scientific evidence has emerged for the first time indicating that the fall-out from the Chernobyl nuclear disaster in 1986 may have raised cancer rates in western Europe.
http://www.privatehand.com/flash/elements.html Atoms and Elements
In the element key for Carbon, 6 is the atomic number (number of protons) C is the symbol 12.011 is the atomic mass (average mass of all the isotopes) Isotope (different forms of the same element) The isotopes of carbon can have mass numbers of 12, 13, or 14 (looking at the atomic mass – which do you think occurs most frequently in nature?)
ATOMIC MASS/WEIGHT and MASS NUMBER Isotopes Atomic Mass: 12.0107 amu URANIUM: U238.02u U-235 U-238 Key Isotopes nuclide 12C 13C 14C atomic mass 12.000 13.003 14.003 natural abundance 98.90% 1.10% trace half-life stable stable 5730 yrs
U-235, when bombarded by neutrons, fissions or splits into two smaller nuclei and releases energy and starts a nuclear chain reaction.