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