How high or low a sound is

How loud or soft the sound is

Sound waves travel slowest through a _____

Sound waves travel fastest through a ______

Sound waves move faster when the medium is ______

What is a tool that makes sounds louder called?

Our __________ vibrates when we talk and sing

Human's vocal cord, __________ and thunder are examples of natural sources of sound

Unwanted sound which disrupts one's quality of life is called ___________

Why can't we hear sound in space?

What happens to our hearing if we listen to loud noises all the time?

How can we protect our ears from hearing loss?

Which picture shows loud sound?

Sound of thunder is ....

Which of this thing has soft sound?

Plane has loud sound. Which thing has loud sound as plane?

from the picture above, we know that sounds are made when things or air ___________.

Adam flicked a ruler gently, he heard soft sound. Then, Adam flicked it stronger and he heard louder sound. it means, small vibration produce _______ sounds while large vibration produce ________ sounds

Adam is in his bedroom. He could hear the siren of ambulance on the street because of the following reasons, except...

the loud sound produce higher volume and sound level than a soft sound. we can measure the sound level of a sound using ....

Ziva measured the sound level of four different places. The quietest place was ______. the loudest place was_______.

Adam lives near the highway. What can be done on the highway to keep the traffic noise away?

What is one way to change a pitch of a sound?

to produce sounds, Mary plucked the stings of the guitar. it produce low pitch sound because it has _______, ______, ______ string

we blow this pan flute to produce sounds. the shortest pipe produce _______

tighter drum skin produce high pitch while looser drum skin produce low skin. to proof that we, first, have to ________ the percussion instrument to produce the sound.

look at the picture.

In which medium sound can travel?

look at the picture.

In which medium sound can travel?

Which of the following objects can produce sound by hitting it?

A sound wave looks most like:

Examples of objects that can produce sounds, are picture . . . .

Look at the picture above!

When we sing or talk, the part of the body that vibrates is the designated number . . . .

A loud sound has a higher volume and sound level then a soft sound. Sound levels are measured in the unit . . .

Look at the picture below!

A the picture next to the sound level owned by a live rock music in decibels is . . . .

Sound vibrations travel down the ear canal to the

Sound waves are collected by the outer ear (pinna) , then travel down the ear canal. The sound wave in the ear canal is caused by

Reflection is the bouncing back of a wave after it strikes a barrier. A reflected sound wave is called a(n):

Sound is a form of?

The reason you cannot hear the "Death Star" exploding is because

The range of human hearing is from