Across
- 2. third planet from the sun
- 7. a long high sea wave
- 8. distance between the center
- 9. the highest point
- 11. long distance communication wave
- 13. wave with a wavelength
- 14. visible to the human eye
- 17. the movement of light conceptualized as a wave, defined by such properties as reflection, refraction, and dispersion
- 19. the action of process interfering
- 20. series of sounds by the sound waves
- 24. it measure humans visual
- 25. division into two sharply contrasting
- 29. explosion of lava
- 31. Earth's innermost part
- 32. a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates that move slowly over the underlying mantle.
- 33. a german physicist
- 35. outline or surface that curves inward
- 37. reflective surface
- 38. denstructive plate theory
- 40. a shaft sharpened at the front
- 42. luminous envelope of a star
- 44. greater than wave
- 45. also called dinscrupted theory
- 46. arch of colors formed in the sky
- 47. not able to be seen through
- 48. geolical process
Down
- 1. hot molten liquid rocks
- 3. liquid layer
- 4. beam of light that spread out
- 5. loose sleveless shawl
- 6. greeting or as a signal, sign
- 10. distance between successive crest of a wave
- 12. a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust.
- 15. action process
- 16. slide away the rocks
- 18. light from one celestial body
- 21. center of interest
- 22. phenomenon of light
- 23. rock formations
- 26. emission of light by substance by not been heated
- 27. throwing back a body
- 28. composed of all em waves
- 30. radiation of electromagnetic
- 34. hot molten rocks
- 36. electromagnetic radiation
- 39. emission of energy
- 41. penetrating electromagnetic radiation
- 43. violent shaking of the ground