Science

9th -

12thgrade

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Week 1 Recap: Properties of Matter, Substances and Mixtures

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20 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Imagine you are in a science lab. You have four substances in front of you: Aluminium (Al), Carbon Dioxide (CO2), Nitrogen (N), and Sand. Which one of these is a compound?

    Aluminium (Al)

    Carbon Dioxide (CO2)

    Nitrogen (N)

    Sand

  • 2. Multiple Choice
    30 seconds
    1 pt

    How would you know if a solid is a pure substance?

    It will melt at a range of temperatures.

    It will melt at a single temperature.

    It will boil at a range of temperatures.

    It will boil at a single temperature.

  • 3. Multiple Choice
    30 seconds
    1 pt
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    A chemist is working in a lab and creates a model. This model represents a(n) _______________.

    Mixture of Elements

    Mixture of Compounds

    Mixture of Compounds and Molecules

    Mixture of Compounds and Elements

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