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G7 Chapter 1 & 2

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  • Formula of density
    mass/volume or mass:volume
  •  15
  • Which instrument is most suitable to use to measure the waist of a person ?
    measuring tape
  •  15
  • A measure of the quantity of matter in a body.
    mass
  •  15
  • 1 ton is equal to _______________ kg
    1000
  •  10
  • The distance between two specified points.
    length
  •  15
  • The amount of space an object occupies.
    volume
  •  15
  • What does the hazard symbol mean?
    biohazard: substances that pose a potential danger or risk to human life
  •  25
  • 3 major branches of Science
    Physics, Biology, Chemistry
  •  20
  • Describe the following positive attitudes that we should have when carrying out scientific inquiry: objectivity, perseverance and curiosity.
    Objectivity are based on facts and are free from bias(personal opinion). Perseverance means not to give up.Curiosity is a strong desire to know or learn somethi
  •  25
  • True or false: Science is the study of the natural and physical world
    true
  •  10
  • The _______________ of a materials is the temperature at which it changes in state from a solid to a liquid.
    melting point
  •  15
  • ____________ are the most widely used system of units to the people of the entire world in technical and scientific research to avoid the confusion with the units.
    SI/ Systeme International d' Unites
  •  15
  • 1 ml= ______L
    0.001 L
  •  10
  • What does the hazard symbol irritant mean?
    A substance that may cause irritation to the skin, eyes or inside your body.
  •  25
  • Explain thermal conductivity
    is a measure of its ability to conduct heat
  •  20
  • Explain density.
    the amount of matter per unit volume
  •  25