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Chemistry Grade 2-3

States of Matter

Compare solids, liquids, and gases and describe what happens when matter changes state.

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Compare solids, liquids, and gases and describe what happens when matter changes state.

Chemistry - Grade 2-3

Instructions: Answer each question in a complete sentence. Use vocabulary words: solid, liquid, gas, melt, freeze, evaporate, condense.
  1. 1
    An ice cube, a puddle of water, and a cloud of steam.

    Name the three states of matter.

  2. 2
    A solid block keeps its shape beside a bowl.

    Which state of matter keeps its own shape?

  3. 3
    Boiling water in a pot changes into steam.

    What happens to liquid water when it is heated to 100 degrees Celsius?

  4. 4
    An apple, a glass of juice, and an inflated balloon.

    Give one example of a solid, one liquid, and one gas.

  5. 5
    Water in a tray turns into ice cubes.

    What is the process called when a liquid turns into a solid?

  6. 6
    Water droplets form on the outside of a cold glass.

    What is condensation?

  7. 7
    Liquid sits at the bottom of one jar while gas fills another jar.

    How are liquids and gases alike, and how are they different?

  8. 8
    A puddle evaporates in the warm sunshine.

    You leave a puddle outside on a sunny day and it disappears. What happened to the water?

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