Science

Galaxies, stars and the solar system

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  • 1. Multiple-choice
    30 seconds
    1 pt

    what element is used in nuclear reactions?

    Hydrogen

    oxygen

    Carbon

    Nitrogen

  • 2. Multiple-choice
    30 seconds
    1 pt

    What is a gas cloud called that will become a star?

    Supernova

    Nebula

    white dwarf

    Red gaint

  • 3. Multiple-choice
    45 seconds
    1 pt

    what is a supernova?

    A type of white dwarf star

    A gas cloud that is the start of a star

    A large explosion when a star is dying

    A red giant star

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