rest of term 1

    Cards (17)

    • Elements, Compounds & Mixtures

      • Elements
      • Compounds
      • Mixtures
    • Element
      Pure substance that cannot be broken down or made simpler
    • When writing an element, the first letter is capital and any other letters are lowercase
    • Compound
      Two or more elements chemically combined
    • Compound
      • H2O
    • Mixture
      Two or more different substances mingled with each other but not chemically combined
    • Density

      Mass (kg) / Volume (cm³)
    • Density is measured in g/cm³ or kg/m³
    • Solid density is less than liquid density

      An object will float in a liquid
    • Density = Mass / Volume
    • Anything that takes up space and has mass is matter
    • States of matter

      • Solid
      • Liquid
      • Gas
    • Change of state
      1. Melting
      2. Boiling
      3. Condensation
    • Melting point

      Temperature at which a solid changes to a liquid
    • Physical change

      A change you can see and reverse
    • Chemical change

      A change that is difficult to reverse
    • Conservation of mass - stays the same even if state changes
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