Science - How do we hear?

Why can't we hear sounds in space?

• There is no air in space to carry sound waves.

• Space is too cold for sound.

• Sound waves are too fast in space.

• Space is too dark for sound.

What is the primary function of the ear?

• To see

• To hear

• To taste

• To smell

The ear helps us to ______.

• see

• hear

• taste

• smell

Which of the following is a part of the ear?

• Heart

• Cochlea

• Lung

• Stomach

The outer part of the ear is called the ______.

• Cochlea

• Pinna

• Eardrum

• Anvil

Which part of the ear is visible from the outside?

• Inner ear

• Middle ear

• Outer ear

• None of the above

The ear is divided into three parts: the outer ear, the middle ear, and the ________.

• Upper ear

• Lower ear

• Inner ear

• Side ear

The _______ is a part of the ear that vibrates when sound waves hit it.

• Cochlea

• Ear drum

• Pinna

• Ear canal

What happens when an object is making a sound?

• It stops vibrating

• It causes nearby things to vibrate

• It becomes silent

• It changes color.

When an alarm clock goes off, the vibrations from the clock's particles cause the air particles around it to ______.

• stop

• vibrate

• disappear

• change color