Light and Sound

Name: ______________________   Date: ____________

Write the missing letters on the lines to finish each word.

1.
b r
That part of the central nervous system that includes all the higher nervous centers
2.
t i h t
A poker hand with 5 consecutive cards
3.
e f l c o
The phenomenon of a propagating wave being thrown back from a surface
4.
e r t i n
The change in direction of a propagating wave when passing from one medium to another
5.
h o
A reply that repeats what has just been said
6.
v a u
An empty area or space
7.
c o u
Any material used for its color
8.
i n w
An arc of colored light in the sky caused by refraction of the sun's rays by rain
9.
b o r b
To take up mentally
10.
w v e l t
The distance between two points in the same phase in consecutive cycles of a wave
11.
i h
The property of sound that varies with variation in the frequency of vibration
12.
l o u e
The magnitude of sound
13.
f u n y
The number of occurrences within a given time period