Solids, Liquids, Gas
6 months ago
wilson2114science
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10 QuestionsShow answers
  • Question 1
    30 seconds
    Q.

    What is a solid?

    answer choices

    particles that are tightly compacted

    particles that are not tightly compacted

  • Question 2
    30 seconds
    Q.

    what is a liquid?

    answer choices

    a substance that flows freely but is of constant volume

    a substance or matter in a state in which it will expand freely

    firm and stable in shape

  • Question 3
    30 seconds
    Q.

    what is a gas?

    answer choices

    a substance or matter in a state in which it will expand freely to fill the whole of a container

    the basic unit of a chemical element

    an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

  • Question 4
    30 seconds
    Q.

    How would you describe the way molecules move when the molecules are solid?

    answer choices

    the molecules are moving in place.

    the molecules are moving around each other.

    the molecules are moving away from each other.

    the molecules are not moving

  • Question 5
    30 seconds
    Q.

    Molecules are always moving no matter what phase they are in: solid, liquid, gas.

    answer choices

    True

    False

  • Question 6
    30 seconds
    Q. Solid, liquid and gas are examples of?
    answer choices
    phases
    temperature
    scale
    refute
  • Question 7
    30 seconds
    Q.

    A phase change can be observed at the molecular scale and can be explained at the macro-scale.

    answer choices

    True

    False

  • Question 8
    30 seconds
    Q.

    What happens to molecules when the temperature drops or lowers?

    answer choices

    The molecules get closer together

    The molecules start moving faster.

    The molecules stop moving.

    The molecules become smaller.

  • Question 9
    30 seconds
    Q. When a substance melts, the kinetic energy _____________.
    answer choices
    decreases
    stays the same
    increases
    decreases then increases
  • Question 10
    30 seconds
    Q. What takes place when a solid changes to a liquid?
    answer choices
    condensation
    freezing
    melting
    evaporation
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