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Science

6th

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Practice- 6.2.2 States of Matter

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  • 1. Multiple Choice
    2 minutes
    1 pt
    A stone and an ice cube are approximately the same size; however, when placed in a glass of water, the stone sinks, and the ice floats. 
    The ice cube has a greater mass than the stone.
    The molecules in the ice cube are more closely packed together.
    The molecules in the stone are more closely packed together.
    The ice cube has a greater density than the stone.
  • 2. Multiple Choice
    2 minutes
    1 pt
    Construct an explanation of the effect of heat energy on the arrangement of particles in states of matter. 
    In a solid, the molecules do not move.
    In a gas, the molecules are constantly in contact with each other.
    In a solid, atoms are closely spaced and may vibrate in position but do not change relative locations.
  • 3. Multiple Choice
    2 minutes
    1 pt
    What happens to the density of a substance when it is heated?
    It floats away.
    Density decreases.
    It bubbles.
    Density increases.
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