The Sun Fusion at Work

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Across
  1. 3. Where fusion happens in the Sun.
  2. 4. Force that keeps the Sun’s core compressed.
  3. 5. Main fusion process in stars like the Sun.
  4. 11. Sequence of fusion steps in the Sun.
  5. 13. Antimatter particle emitted during proton–proton fusion.
  6. 14. Formation of new elements in stars.
  7. 15. Light particles produced by fusion reactions.
  8. 17. High-energy photon released from fusion.
  9. 18. Must reach millions of degrees for fusion to occur.
  10. 20. The result of mass being converted according to E=mc².
Down
  1. 1. Positively charged particle that fuses in the Sun.
  2. 2. Einstein’s equation describing mass–energy conversion.
  3. 6. Along with temperature, must be extremely high for fusion.
  4. 7. The lightest element, fuel for the Sun’s core reactions.
  5. 8. The process that powers the Sun by combining hydrogen nuclei.
  6. 9. Energy that holds nuclei together.
  7. 10. Alternative fusion process in hotter stars.
  8. 12. Product of fusion in the Sun.
  9. 16. Nearly massless particle released during fusion.
  10. 19. State of matter inside the Sun.