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CLASS 9 (HUMANITIES) GENERAL SCIENCE UNIT NO 05

  CLASS: 9 (Humanities)               GENERAL SCIENCE  UNIT #  05 IMPORTANT DEFINITIONS Electrons             Negatively charged atomic particles spinning around the nucleus are called electrons. Energy             The ability to do work is called energy. Fission             The splitting of nucleus of an atom into smaller nuclei is called fission. Fusion             The change of a substance from solid to liquid state is called fusion. OR             The joining together of two atomic nuclei is called fusion. Heat                 The internal energy of a body ...