Across
- 2. The element produced when hydrogen nuclei fuse inside a main-sequence star
- 4. The faint, hot outermost atmosphere of the Sun visible as a white halo during a total solar eclipse
- 5. The type of longwave heat energy re-radiated by Earth's surface
- 10. The central region of the Sun where high temperature and pressure drive nuclear fusion
- 11. A dark, cooler area on the Sun's surface caused by magnetic activity
- 13. A sudden, intense explosion of radiation and energy from near sunspots
- 15. The full range of electromagnetic radiation ordered by wavelength and frequency
- 20. A large, bright loop of glowing gas extending outward from the Sun's surface
- 21. The plastic layer of Earth's upper mantle where convection currents drive plate movement
- 22. Wavelength category of incoming solar radiation like UV and visible light
- 23. The visible surface layer of the Sun that emits most visible light
Down
- 1. Heat transfer in fluids driven by temperature and density differences
- 3. Heat transfer through direct molecular contact, most effective in solids
- 6. The nuclear process that combines light nuclei to form heavier elements and release energy
- 7. The color of visible light with the longest wavelength and lowest energy
- 8. Type of radiation emitted by Earth compared to incoming shortwave solar radiation
- 9. The middle layer of the Sun's atmosphere that glows with a reddish hue
- 11. The roughly eleven-year periodic cycle in which sunspot activity increases and decreases
- 12. The layer of the Sun where energy moves slowly outward through dense plasma via radiation
- 14. The primary fuel element consumed during main-sequence stellar fusion
- 16. The only heat transfer method that can travel through empty space
- 17. The solar layer where hot plasma rises and cooler plasma sinks to transport energy
- 18. The color of visible light with the shortest wavelength and highest energy
- 19. Electromagnetic waves with the shortest wavelength and highest energy