Class 7 science Practice Tests
Class 7 Science Online Tests
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MCQ 1: In conductors, electrons can flow because their
MCQ 2: Poor conductor of electricity is
MCQ 3: Ions are charged particles. They are formed when an atom
MCQ 4: The materials that allow the electrons to flow through them is known as
MCQ 5: An example in which light emitting diodes are used, is
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