Science

9th

grade

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PS 2.1 Formative

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10 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Matter that has exactly the same composition.

    pure substance

    mixture

    suspension

    colloid

  • 2. Multiple Choice
    45 seconds
    1 pt

    Which of the following are pure substances?

    elements

    mixtures

    compounds

    solutions

  • 3. Multiple Choice
    30 seconds
    1 pt

    Always contains two or more elements joined in a fixed proportion.

    solution

    element

    compound

    mixture

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