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Life Cycles of Stars (Grade K-8) - Page 16

Solutions

STAR LIFE ANSWER KEY - LEVEL 1

  1. Gravity pulls hydrogen gas together to form a cloud. (4)

  2. Nuclear fusion occurs which causes the star to glow. (2)

  3. A main sequence star, which can live for millions or even billions of years, forms. (7)

  4. A red giant forms when the star's hydrogen level drops. (6)

  5. Iron, which acts as an energy sponge, forms within the star. (5)

  6. A supernova occurs. (1)

  7. If it is a massive star, a neutron star forms. If it is a super massive star, a black hole forms. (3)



NEBULAR NONSENSE ANSWER KEY - LEVEL 1

puzzle solution



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