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Nuclear Fission:
Splitting the Atom You know that atoms are made up of a nucleus and electrons moving around the nucleus, and the nucleus is made up of protons and neutrons. The principal actor in the fission drama is the uranium atom. The nucleus of the Uranium 238 atom has 92 protons and 146 neutrons. About one atom in 140 atoms of uranium has 143 neutrons in its nucleus. lt is called Uranium 235. It is the Uranium 235 that is mostly used to provide fuel for nuclear furneces. Before the Second World War, two German scientists discovered that if neutrons were shot at the nuclei of Uranium 235, the nuclei split into two and produced other neutrons to repeat the process. This is called nuclear fission.
Define Nerve Cell The basic unit of the nervous system as studied above, is the individual nerve cell - the neuron. The nerve cells operate by generating electrical signals and
Dissecting simple flowers Label each of five cards or pieces of White paper with one of the following words: stamens, pistil, petals,sepals, receptacle . Dissect a flower ca
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What simple machine could you use to lift a heavy rock out of the ground? How would use the machine
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Define The Limbic System The limbic system, like you would realize, is as well referred to as the emotional brain. It is found buried within the cerebrum. This system consists
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