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Science and Technology Grade VI

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  • This element is used for working of hot-air balloon.
    Helium
  • The smallest living unit in plants and animals.
    Cells
  • The force that slows down the motion.
    Friction
  • Which gas is known as laughing gas?
    Nitrous oxide
  • A mixture of two metals.
    Alloy
  • A measure of gravitational pull.
    Weight
  • The element that is present in toothpastes and helps in preventing tooth decay.
    Fluoride
  • The process of changing a liquid into a gas.
    Evaporation
  • The smallest particle of a chemical element.
    Atom
  • The process of making food by plants.
    Photosynthesis
  • It means an empty space without air.
    Vacuum
  • This element is present in human bodies and helps in the development of our bodies.
    Chromium
  • The force that keeps us stable on the earth.
    Gravity
  • They are hard, malleable and ductile elements.
    Metal
  • The element is an orangish-pink element which is used in electrical wires and cables.
    Copper
  • This element is used for giving white polish to the ornaments.
    Rhodium
  • The process of changing a liquid into a solid.
    Freezing
  • The process of changing a solid into a liquid.
    Melting
  • It means a push or a pull.
    Force
  • It is commonly Known used acid in food?
    Vinegar
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