Sound Theme Unit
edHelper.com subscribers: Click Here to Build a New Printable Version of this Pre-Made Worksheet with Answers!

Not a subscriber?  Sign up now for the subscriber materials!
  Return to Sound Theme Unit

 

Name _____________________________
Date ___________________
  Sound
12
34
5
6
78
91011
12
131415
1617
1819
20
21

 

WAVELENGTH
INTERFERENCE
REFLECTION
ECHOLOCATION
FREQUENCY
COMPRESSION
DIFFRACTION
DECIBEL
AMPLITUDE
CREST
ECHO
HERTZ
PITCH
EAR
SOUND
VIBRATIONS
AMPLIFIER
LARYNX
LOUDNESS
WAVES
SONICBOOM
SONAR

 

WAVELENGTH
INTERFERENCE
REFLECTION
ECHOLOCATION
FREQUENCY
COMPRESSION
DIFFRACTION
DECIBEL
AMPLITUDE
CREST
ECHO
HERTZ
PITCH
EAR
SOUND
VIBRATIONS
AMPLIFIER
LARYNX
LOUDNESS
WAVES
SONICBOOM
SONAR

Down
2.  The rapid back-and-forth movement of matter.
3.  A machine that sends out sounds waves and uses the waves that are reflected back. This is used to help detect underwater objects.
4.  A structure in humans that contains the vocal cords and vibrates to produce sounds.
7.  The distance between one crest or peak of a sound wave and the next crest or peak.
8.  The bending of waves as they pass through an opening or around the edge of an object.
10.  The pitch of a sound depends on the ____ of the sound wave.
11.  The area where particles or air are pushed closer together as a result of being near something that is vibrating.
12.  The bouncing back or change in direction of a wave after it strikes a barrier or an object. This may also be called an echo.
13.  The loudness of a sound depends on the ____ of the sound wave.
15.  A unit of frequency measured in cycles per second.
16.  A sound that is repeated because the sound wave reflected or bounced back from a distant object.
17.  The unit used to express loudness.
Across
1.  The form in which sound energy moves from one place to another.
3.  A large bang caused by an aircraft flying at or faster than the speed of sound. (2 words)
5.  A machine that converts an electrical signal into a sound wave with an increase in loudness.
6.  A measure of the amount of energy that sound waves carry.
9.  The part of the human body used for hearing.
14.  A measure of the highness or lowness of a sound.
18.  The peak of a sound wave where the greatest air pressure occurs.
19.  Two or more sound waves that overlap.
20.  A form of energy that travels as waves through the air and some solids and liquids.
21.  The process of using reflected sound waves to find objects. Bats, dolphins, and some other animals use this to find food and avoid danger.

 

Answer Key
1W
A
2V
ES
I
3S
ONICBOOM
4L
ORA
N
5A
MPLIFIER
ATY
RI
6L
OUDNESS
OX
N
7W
8D
S
9E
AR
10F
11C
I
V
12R
ROF
13A
14P
ITC
15H
EEEMF
MELFQPR
P
16E
17D
RELURA
L
18C
REST
19I
NTERFERENCE
IHCZGCNST
TOITTCSI
UBHIYIO
DEO
20S
OUND
21E
CHOLOCATIONN