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G7 CH2 - States of matter

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  • Which of these terms matches the two facts? This falls from clouds Rain, snow and hail are forms of this. ______________
    precipitation
  • Which of these terms matches the two facts? When this happens, liquid water changes to water vapour. Water from rivers and the ocean is taken up into the atmosphere. ______________
    evaporation
  • Give the symbol for magnesium : ____________ oxygen : ____________
    Mg and O
  • Give the symbol for hydrogen : ____________ calcium : ____________ and boron : ____________
    H , Ca, and B
  • Marcus place a substance in a beaker. He saw that the substance changed shape and took the shape of a beaker. What was the substance?
    Liquid
  • Which state of matter has the strongest forces between its particles? __________
    solid
  • If you heat water until its temperature reaches 100 degree C, it will boil. Now, all of the water rapidly change to ____________. 100 degree C is the boiling point of water.
    water vapour
  • What is the difference between a mixture and a compound?
    Mixture is not chemically bonded and easily to separate, but the compound is chemically bonded and hard to separate
  • The temperature at which a substance melts and boils are two of its ______________
    properties
  • Name the state of matter that fits this description. Particles are close together in a regular pattern. __________
    solid
  • Name the state of matter that fits this description. Particles do not touch one another. ____________
    gas
  • Which of these terms matches the two facts? This is what happens when water vapour cools down. This is a change from water vapour to a liquid. ______________
    condensation
  • Which of these statements about the Periodic table is correct? the columns are called periods / the columns are called groups
    the columns are called groups
  • Name the state of matter that fits this description. Particles are closely packed but not in a regular pattern. __________
    liquid
  • The temperature at which a solid melts is called the __________________
    melting point
  • If you leave ice in a _________ place it melts and becomes liquid water.
    warm
  • What is the chemical symbols for Potassium?
    K
  • Name the element with the given symbol. Cl : __________ and Si : _____________
    Chlorine and Silicon
  • What state of matter is represented by this diagram?
    Liquid
  • Name the element with the given symbol. C : __________ , Na : _____________ and K : _____________
    Carbon , Sodium and Potassium