Science

6th

grade

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Life Cycle of Stars

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20 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    A big cloud of dust and gas where all

    stars begin their life cycle is called a

    solar system

    universe

    galaxy

    nebula

  • 2. Multiple Choice
    30 seconds
    1 pt

    Stars are made mostly

    of which two elements?

    Hydrogen and helium

    Hydrogen and oxygen

    Nitrogen and helium

    Nitrogen and oxygen

  • 3. Multiple Choice
    30 seconds
    1 pt

    Which is the stage where a massive star

    explodes and releases a lot of energy?

    Red supergiant

    Supernova

    Black hole

    Main sequence

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