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Eureka Child Background Presentation

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Transcript: You need billions of atoms to get useful heat. A neutron strikes a nucleus and makes it split. As it splits, it shoots out more neutrons and some gamma radiation. These neutrons hit more nuclei, and so on. This is called fission. Power From Atoms Everything is made from about 100 elements, which are all made up of atoms, even you and me. Atoms are much too small to see with an ordinary microscope. They contain protons, neutrons and a nucleus. Some atoms are unstable and give out tiny particles and gamma waves when they decay, called nuclear radiation. These atoms are radioactive. Nuclear Power 1789, Uranium discovered by Martin Klaproth December 1938, Otto Hahn discovered nuclear fission During WWII, scientists in America, Britain and Russia developed weapons using nuclear fission December 1951, the first nuclear reactor produced electricity in Idaho, USA - designed by Argonne National Laboratory Eureka (Nuclear Power) What Is An Atom? Cost a lot to build because of the safety requirements. Highly dangerous There may be unknown risks Uranium sources are just as finite as other fuel sources, such as coal, natural gas, etc Uranium is also expensive to mine, refine and transport Waste lasts 200 – 500 thousand years Inside the Reactor Less carbon dioxide (and other greenhouse gases) released into the atmosphere than coal-power. Low operating costs Generates lots more energy more quickly than other technologies such as solar power. Development Pros Uranium dioxide fuel pellets are sealed inside cans which are stacked in sleeves which are sealed inside cases. 8 cases make up each fuel rod. The fuel rods are placed in the reactor core (concrete), with graphite control rods which, when lowered, slow down the reaction by getting in the way of the neutrons. Cons

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