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Science: review 3rd grade

  •  English    28     Public
    science, planets, water, history
  •   Study   Slideshow
  • The solar system is in the ____________________ galaxy.
    Milky Way
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  • Which is the smallest planet?
    Mercury
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  • Name the three layers of the Earth
    Atmosphere, hydrosphere and geosphere
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  • Name the two movements of the Earth
    Rotation and revolution
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  • What does revolution movement cause?
    Seasons
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  • What does rotation movement cause?
    Day and night
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  • What´s the name of the imaginary line that divides the Earth into Northern and Southern Hemispheres?
    Equator
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  • What´s the name of the imaginary line that divides the Earth into Eastern and Western Hemispheres?
    Greenwich Meridian
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  • Which is the main gas in the atmosphere?
    Nitrogen
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  • Which is the nearest layer of the atmosphere?
    Troposphere
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  • Which are the three states of water?
    Solid, liquid and gas
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  • Change of state of water: from solid to liquid is called___________________.
    Melting
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  • Change of state of water: from liquid to solid is called___________________.
    Freezing
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  • Change of state of water: from liquid to gas is called___________________.
    Evaporation
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  • Change of state of water: from gas to liquid is called___________________.
    Condensation
  •  15
  • How do we call a group of islands?
    Archipelago
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