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Pelangi Science_P3_Chapter 4_Materials

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  • What word do we use for when ice turns into a liquid?
    Melt
  • Objects can be made of a …… of materials.
    Combination
  • Pieces of fabric can be assembled to make ….
    Bags / blankets / new clothes
  • Sugar melts when it is …. And changes colour to yellow and then ….
    Heated / brown
  • ….. …. Is metal that has been heated to a very high temperature.
    Molten metal
  • What state of matter is ice?
    Solid
  • Ice can go from a solid to a liquid. TRUE/FALSE (and why)
    TRUE - when ice is heated, it turns into a liquid
  • What happens when we remove heat from liquid water?
    It freezes and Saturns to a solid / ice
  • What is added to a raw prawn to make it change colour and shape?
    Heat
  • What happens when liquid water is heated?
    It turns to a gas / steam
  • Solids have a fixed shape. TRUE / FALSE
    True
  • When liquid chocolate is … it changes to a solid.
    Cooled
  • What happens when a gas is cooled?
    It turns into a liquid / water
  • Is the raw egg yolk a yellow solid or liquid?
    Liquid
  • Sugar is a …..
    Solid
  • Liquids have a fixed shape and can flow. TRUE / FALSE
    FALSE - liquids flow and have no fixed shape
  • What part of a raw egg is a clear liquid?
    Egg white
  • Houses have …. Walls that can be dismantled and turned into walkways.
    Brick
  • Steam is a gas to it …….. fixed shape and colour.
    Has no
  • Some materials can be …… like buttons on a shirt
    Separated
  • Water is a …. at room temperature
    Liquid
  • What happens to an eggs’ yolk and white when heat is added?
    It turns to a solid. The yolk becomes a pale yellow, and the whites become a white solid.
  • When molten metal is …. It changes from bright yellow, to red, to pale gray.
    Cooled
  • When white bread it toasted it ….
    Turns brown and and crispy
  • Molten metal has a fixed shape. TRUE / FALSE
    False, it is like a liquid and has no fixed shape and can flow
  • When a chocolate bar is ….. it becomes liquid chocolate.
    Heated
  • What can happen to materials when they are heated or cooled?
    They can change shape and colour
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