Sound
Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
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Check
Across:
1.
kidney stones
4.
unwanted sound
7.
membrane
9.
passage of air in lungs
11.
membrane of ears
Down:
2.
voice box
3.
string
5.
to and fro motion
6.
metal reeds
8.
air column
10.
no. of oscillations per second
OK