Across
- 5. a negatively charged atomic particle
- 9. when hydrogen atoms combine to form helium atoms
- 10. causes atoms to move so fast that they collide and fuse in Sun's core
- 11. longest electromagnetic waves, often bigger than a football field
- 12. atom with a different number of protons and electrons
- 15. color on visible spectrum with lowest frequency
- 18. how often wavs pass by per second
- 19. used to organize the periodic table; equal to number of protons
- 20. a positively charged atomic particle
- 21. repeats every 10-12 years with high or low solar activity
- 23. a stream of charged particles from Sun that cans excite Earth's atmosphere
- 25. Earth's ___ protects us from most solar wind but allows some to reach polar regions
- 27. where photon light it emitted from the Sun, also where sunspots are observed
- 29. electromagnetic wave slight longer than visible light
- 30. process where lighter atoms combine to form more massive atoms
- 31. why atoms like hydrogen collide and fuse in core of stars
- 32. photons rise quickly on hot gases towards he surface
- 34. distance between 2 consecutive waves
- 37. electromagnetic wave slightly shorter than visible light
- 40. stars approaching us show their visible spectrum do this
- 41. only electromagnetic wave that human can detect with eyes
- 42. regions on the photosphere where intense solar storms erupt
Down
- 1. the type of images created by studying invisible EM wavelengths
- 2. atomic particle that has both positive and negative charges
- 3. blocks most electromagnetic waves from reaching Earth's surface
- 4. where photons take a slow random walk outwards
- 6. atom that has gained electrons in its cloud
- 7. color of stars emitting higher temperature
- 8. average weight of atom; sum of protons and neutrons
- 13. upper atmosphere where ionized gases escape Sun's gravity to create solar wind
- 14. shortest electromagnetic waves on the spectrum
- 16. the range of wavelengths stars give off from gamma to radio
- 17. lower atmosphere where solar storms are held tightly by Sun's gravity
- 20. atom that has lost electrons ("are you sure?")
- 22. where the Sun undergoes hydrogen fusion
- 24. the study of visible star light emitted; can tell us temperature, composition, and movement
- 26. a packet of radiation including heat, light, and electromagnetic spectrum
- 28. brilliant light display when Earth's atmosphere is excited by solar wind
- 33. harmful electromagnetic waves used in doctors or dentists office
- 35. color on visible spectrum with shortest wavelength
- 36. stars moving away from us show their visible spectrum do this
- 38. color of stars that emit lower temperatures
- 39. most massive part of an atom containing protons and neutrons