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Sci 6 - Unit 1

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  • An object floats when its mass is ______________
    less than 1
  • What phase is A in?
    solid
  • What phase is B in?
    liquid
  • When you add thermal energy to ice, what happens?
    It melts, becomes liquid
  • What phase is C in?
    gas
  • A form or state that matter can be in, like solid, liquid, or gas. Based on density and particle movement.
    Phase
  • The energy something has because of the movement of its particles. More energy usually means something feels hotter.
    thermal energy
  • What is the formula for density?
    mass / volume
  • Why do atoms bond together?
    to become less reactive, to share electrons, to fill their shells
  • How much mass (stuff) is packed into a certain amount of space.
    Density
  • What is part B?
    neutron
  • The negatively charged particle found in shells is the
    electron
  • What could you add to change A into B or B into C?
    thermal energy / heat!
  • When are atoms reactive?
    1 or 7 atoms in outer shell
  • What is part C?
    proton
  • What is part A?
    electron
  • When is the density of an object with mass 10g and volume 5mL
    2
  • When atoms join together, what is holding them together?
    bonds
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