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SS3: UNIT 7 FINAL REVIEW

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    Water & Air on Earth
  •   Study   Slideshow
  • Where is air found in the Earth?
    In the atmosphere
    In the air
    In the water
    In space
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  • All living things need _______ and _______ to live.
    water, air
    food, drink
    a mum, a dad
    water, food
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  • What are the 3 states that water is found in?
    Solid, liquid and gas
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  • Most of the water on Earth is ...
    saltwater
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  • What type of water is icecaps?
    Freshwater.
    Saltwater.
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  • What type of water is groundwater?
    Freshwater.
    Saltwater.
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  • What type of water are seas?
    Freshwater
    Saltwater
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  • Reservoirs are....
    natural lakes
    man-made lakes
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  • Reservoirs are used for ...
    releasing
    storing
    throwing garbage/rubbish
    having baths
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  • Can plants grow without air?
    No, they can't.
    Yes, they can.
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  • Atmosphere is the layer of gases that surround the Earth.
    True
    False
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  • What is the difference between lakes and reservoirs?
    Lakes are natural forms of water and reservoirs are man-made.
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  • We can see air. (True or False)
    False
    True
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  • Which gas is about 78% of the Earth's atmosphere?
    Oxygen
    Water Vapour
    Nitrogen
    Carbon Dioxide
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  • Which gas is about 21% of the Earth's atmosphere?
    Carbon Dioxide
    Oxygen
    Water Vapour
    Nitrogen
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  • Air and water have the same characteristics. What are these characteristics??
    They have no smell, no taste and no colour.
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