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Summary: Matter

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Read the summary and the most important questions on Matter

  • 2 working in a laboratory safely

    This is a preview. There are 8 more flashcards available for chapter 2
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  • Where is the yellow flame used for?

    when you do not need to use the burner for a little while
  • Where is the colourless flame used for?

    it is generally used for heating a small amount of substance slowly and carefully, eg. small liquid test tube
  • What is the rustling flame?

    flame with a blue centre is used for heating a large amount of a substance to high temperature. 
  • What is deionised water?

    water from which dissolved calcium slats have been removed.
  • How do you conduct an experiment?

    action: you do something
    observation: you see, hear, smell of feel something
    conclusion: now you can ponder these observations and draw a conclusion 
  • Why do you perform experiments?

    -develop practical skill
    - learn how to handle substances with simple tools
    - learn lot about properties of substances
    - easier to remember the results
    teaches you to work systematically and reflect on what you are doing
  • What are models of molecules?

    olecules are so unimaginably small that you will need complex scientific equipment to amke them visible.
  • 3 Substances an their properties

    This is a preview. There are 9 more flashcards available for chapter 3
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  • What is property of matter?

    a property thaqt is typical of a substance
  • What are the melting point and the boiling point of a substance?

    the temperatures at which a substance changes from one state of matter to another.
  • How do we also call the melting point and the boiling point of a substance?

    constants of a substance
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