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  • What are inappropriate materials?
    violent materials, gambling materials, sexual materials
  • Match the local dishes with different countries.  1. Sushi    2. Kimchi    3. Curry
    1. Sushi  (Japan)   2. Kimchi  (Korea)   3. Curry ( India)
  • Name the property of air.
    no colour, take up space , no fixed shape
  • How can we save water?
    have short shower instead of baths, wash full loads of clothes
  • What is the relationship between water pressure and depth of water?
    water pressure increases as the depth of water increases.
  • 4/5 of air is _____________.
    Nitrogen
  • How to protect your computer from virus?
    Install anti-virus software
  • How do plants carry out photosynthesis? They take in _______________ and give off __________________.
    carbon dioxide, oxygen
  • Name properties of water ( colour, smell, taste, direction of flow, float on water)
    no colour, no smell, no taste, flow downward, something can float on water
  • How does air pollution affect society?
    affect transport,increase health care spending
  • 1/5 of air is _______________.
    oxygen
  • How can we improve air quality?
    take public transportation, use electric vehicles
  • What may happen due to the plate movement?
    Earthquakes and volcanic eruptions
  • How do human breathe? We breath in ________________ and breathe out ___________________ and _______________________.
    oxygen, cardon dioxide and water vapour
  • What is the function of mass media?
    raise social issues, monitor the government
  • Name two method of water treatment
    Sedimentation and filtration
  • What is the structure of the earth?
    Crust, Mantle, Core
  • What happen if we use internet improperly?
    Internet addition
  • What are the main water sources in Hong Kong?
    rainwater, Dongjiang water
  • What causes air pollution?
    power station, factory, vehicle, vessel, construction work, restaurant
  • Name three state of water
    water (liquid) , ice (solid), water vapour(gas)
  • Can we drink tap water directly?
    No, water may be polluted
  • What are the common theme in traditional Chinese paintings?
    Landscapes, people, flower and birds
  • What is the majority of the earth's surface covered by?
    Oceans
  • How does the chest change when we breathe?
    The chest expands when we breathe in
  • Name one type of mass media
    television, radio. the internet, newspaper, magazine
  • What is the usage of the internet?
    Daily matters, business, entertainment, education, communication
  • What is Intellectual Property Rights?
    original work are the result of creators' hard work
  • Name one source of sewage.
    factory, farm, restaurant, household
  • How we store/ collect the water?
    reservoirs
  • What is the feature of surface tension of water?
    can make some object stay on the water surface
  • Name one type of firefighting equipment.
    fire blanket, fire hose, fire extinguisher
  • How can we make sure that water is safe for drinking?
    boiling water
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