General Science for Class 7

    Physical and Chemical Changes
    Burning hydrocarbons produce
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    Transportation in Plants
    Xylem is a vessel in plants which takes
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    Atoms Molecules and Ions
    Under STM, atoms can be
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    Atoms and Atom Model
    Steam is used to turn
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    Mixtures
    When salt is mixed into water it becomes
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    Electric Circuits and Currents
    Compared to short thin wire of silver, the long but thin wire would have
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    Atoms Molecules and Ions
    Chemical symbol represents
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    Sound Waves
    The height of a wave is known as
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    Respiration and Food Energy
    The ‘air’ that we breath, turns moist, by
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    Human Transport System
    The general treatment for the pacemaker disease is
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