8.1 chemical reactions

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Across
  1. 2. The lowest surface part of a wave.
  2. 4. running lengthwise rather than across.
  3. 5. not able to be seen through; not transparent.
  4. 8. measurement of the focusing characteristics of an eye or eyes.
  5. 9. the strength and vitality required for sustained physical or mental activity.
  6. 10. a unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level on a logarithmic scale.
  7. 11. the substance that transfers the energy, or light from one substance to another substance or from one place to another, or from one surface to another
  8. 13. abrupt change in the direction of propagation of a wave that strikes the boundary between different mediums.
  9. 16. allowing light to pass through so that objects behind can be distinctly seen.
  10. 18. The highest surface part of a wave
  11. 19. the rate at which something occurs or is repeated over a particular period of time or in a given sample.
  12. 23. A passage or transfer, as of a disease from one individual to another or of neutral impulses from one neuron to anothe
  13. 24. of motion, observable as the movement of an object or subatomic particle.
Down
  1. 1. the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge
  2. 3. spectrum the range of wavelengths or frequencies over which electromagnetic radiation extends.
  3. 6. the process or action by which one thing absorbs or is absorbed by another.
  4. 7. the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
  5. 12. Pertaining to, governed by, or in accordance with, mechanics, or the laws of motion;
  6. 14. distance traveled per unit of time.
  7. 15. is a dimensionless quantity representing the amount of matter in a particle or object.
  8. 16. allowing light, but not detailed shapes, to pass through; semitransparent.
  9. 17. the SI unit of frequency, equal to one cycle per second.
  10. 20. motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance.
  11. 21. energy energy that has the potential to become another form of energy.
  12. 22. the maximum extent of a vibration or oscillation, measured from the position of equilibrium.