Science Activity Vocab Crossword

2. a material that allows almost al of the light striking it to pass through, and through which objects can be seen clearly.
3. the bouncing of a wave off a surface.
5. a disturbance that transfers energy from one place to another without transferring matter.
8. the transfer of energy from a wave to the medium through which it travels.
9. reflection of light from a rough surface.
11. how you perceive the energy of a sound wave.
15. the number of times the pattern repeats in a given amount of time.
17. a material that allows most of the light that strikes it to pass through, but through which objects appear blurry.
20. a wave in which the disturbance is parallel to the direction the wave travels.
21. the perception of how high or low a sound is; related to the frequency of a sound wave.
22. the maximum extent of the repeating quantity from equilibrium.
23. the unwanted modification of a signal.
24. electromagnetic radiation that you can see.
25. a wave in which the disturbance is perpendicular to the direction the wave travels.

1. the change in direction of a wave as it changes speed in moving from one medium to another.
4. law that states that when a wave is reflected from a surface, the angle of reflection is equal to the angle of incidence.
6. a longitudinal wave that can travel only through matter.
7. the amount of energy that passes through a square meter of space in one second.
10. a material through which light does not pass.
12. a wave that can travel only through matter.
13. the distance between one point on a wave and the nearest point just like it.
14. a material in which a wave travels.
16. energy carried by an electromagnetic wave.
18. the passage of light through a medium.
19. a piece of information that is communicated through using the senses.