Science choice

2. The bending of waves around a barrier.
3. The ability of two or more waves to combine to form a new wave.
7. a wave that requires a medium through which to travel.
9. A material through which a wave travels.
10. The distance between identical points on two adjacent waves; for example, the distance between two crests or two troughs.
11. waves a wave that appears to stand in one place, even though it is really two waves interfering as they pass through each other.
14. The bending of waves, caused by changing their speed.
15. The highest point of a wave.

1. a wave that moves a medium in a direction parallel to the direction in which the wave travels.
4. the lowest point of a wave.
5. The starting substances in achemical reaction.
6. In a wave,the distance from the rest position of the medium to either the crest or trough.
8. In compressional waves, the dense area of the wave.
12. Occurs when a wave strikes an object and bounces off.
13. The number of wave crests that pass a point during one