Main Idea
Why is the brain an important part of hearing?
Signals from the ear are sent to the brain to make sense of the sounds you hear.
What does the word "silence" mean as it is used in paragraph 7?
There are no sounds
What happens when your eardrum vibrates fast?
The sound is higher.
What does the illustration teach you?
How ears and hearing work.
Which sentence best states the main idea of the passage?
A. Some noises are loud.
B. Sound waves do not travel in outer space.
C. Sound waves can travel in water.
D. Vibrations create sound waves that allow us to hear noises.
D.
What does "vibration," mean when referring to your vocal cords?
The feeling of tiny, quick, shaking movements.
What do sound waves travel through?
Through air, water and wood
What are nerve hairs important?
They help change sound waves into messages that the brain can understand.
Why did the author most likely write this passage?
To teach people about how hearing works.
What is an "echo?"
Sound waves that bounce back.
Where are there no sounds in outer space?
There is no air and so there is nothing for sound waves to travel through
Where do sound waves travel to?
The eardrum