6th graders quiz Quiz
Question Number 1
what is vibration?
A. back and forth movement that causes sound
B. sound
C. talking
D. singing
Question Number 2
a whisper measures how many decibels?
A. 45
B. 60
C. 15
D. 120
Question Number 3
the white part of the eye is called the?
A. pupil
B. iris
C. sclera
D. lens
Question Number 4
the outer part of the ear you can see is called the?
A. iris
B. pinna
C. semi-circular canals
D. cochlea