Chapter 2: MatterSection 3: Properties of Matter
Pgs. 54 & 55                           2.4 Energy from Atoms• Nuclear Power   – Most electricity in the US is produced fro...
Nuclear Power Plant                      Typical Nuclear Power                      Plant Design
2 Points of View• Storing Nuclear Waste in Yucca Mountain:   – One major problem with nuclear energy is the waste       • ...
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Chapter 2 section 4 notes 2011 (energy from atoms)

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Chapter 2 section 4 notes 2011 (energy from atoms)

  1. 1. Chapter 2: MatterSection 3: Properties of Matter
  2. 2. Pgs. 54 & 55 2.4 Energy from Atoms• Nuclear Power – Most electricity in the US is produced from burning fossil fuels – Nuclear Power is an alternative to fossil fuels • Nuclear energy is produced from splitting large atoms • FISSION: Splitting of large atoms into smaller atoms – Uranium Fission • Uranium-235 is a fissionable isotope • After refining, it is placed in fuel rods to be used in power plants • The rods are placed in the reactor core • Neutrons are fired at the rods  splitting the atoms • A chain reaction begins • High amounts of heat is released • The heat is used to boil water  producing steam • The Steam turns a turbine connected to a generator = electricity
  3. 3. Nuclear Power Plant Typical Nuclear Power Plant Design
  4. 4. 2 Points of View• Storing Nuclear Waste in Yucca Mountain: – One major problem with nuclear energy is the waste • Nuclear Waste: highly radioactive materials – Can remain radioactive for thousands of years – Must be stored safely • Yucca Mountain, Nevada – Selected as a possible Nuclear Waste disposal site – Reasons for selection: Remote, Very little rain fall, Water table very far below surface, & Land owned by US government• Search for Other locations: – Geologists have theories that water movement is very active in the area (percolation & upwelling) • Potentially could move toxic waste down to water table, or up to the surface – Earthquakes are also a concern (damaging containers)

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