I am really loud! I can be heard from far, far away. Scientists get a little worried that I might blow my eardrums. My special little ears are connected to my lungs. Because my ears and lungs are this way, scientists believe that is what helps my ears from getting hurt.
What is a frog?
100
This a word used to explain the high and low sounds we hear.
What is pitch?
100
A bird is chirping in the trees. Imagine if you coud see the waves of vibration. Would they be closer together or far apart?
Close together!
100
List three sounds that you hear in your home that are safe sounds? They are not too loud and they do not hurt your ears! For example, the phone ringing or your dad whistling in the kitchen.
radio, T.V, humming of the fridge, crackling of the fire at the fireplace, sister singing in her room, sound of the dishwasher...
200
There are three main parts of the ear.
What is the outer, middle, and inner parts of the ear.
200
I am huge! I live all the way in Africa. I can hear from extremely long distances. You may think it silly but I actually hear through my feet. Sound vibrations travel up through my feet and up my body and to my ears!
What is a elephant?
200
This key word is about vibrations moving fast and slow. There are vibrations that are close together and some that are far apart. There is a unit of measurement that measures for how many times vibrations move per second!
What is frequency?
200
Decibels are used to measure the loudness or intensity of sounds. Sounds more than 90 decibels could be harmful to the ear. If the sound is more than 120 decibels, it can be very, very painful! If Hailey heard a sound 20 decibels and Logan heard a sound 98 decibels, how many more decibels did Logan hear than Hailey?
What is 78 decibels?
200
What are 2 loud noises that could harm your ears in your home or community? For example, vacumming, train whistle...
jet taking off, sierons of ambulance, rock concert, music turned up too loud , your brother screaming in your ear, ...
300
This part of the ear helps with balance.
What is the cochlea?
300
You can't see my ears, they are hidden. My ears are actually not on top of my head but on the sides of my head. One ear is higher than the other! This helps me so I can hear my prey better.
What is a owl?
300
The unit of frequency.
What is Hertz?
300
The common Mallard duck can hear only up to 8000 Hz, whereas we can hear up to 20 000 Hz. How much more can we hear?
12 000 Hz
300
Someone who is unable to hear sounds.
What is deaf?
400
The ear canal leads to a sheet of skin that is stretched acros the entrance to the middle ear.
What is the ear drum?
400
Out of all my senses, like touch, smell, taste, my sense of hearing works the best! I am a mammal and I spend most of my time underwater.
What is a dolphin?
400
The cochlea is in this part of the ear. It is a coiled tube that holds fluid and nerve endings.
What is the inner ear?
400
Decibels measure how loud a sound is! If a jet is taking off it must be very loud! The loudness of a jet is 140 decibels. How many groups of 10 are in 140?
14 groups!
400
Remember to measure how loud a sound is we use decibels. If safe sound, like a normal conversation is 50 decibels and a sound that could hurt is measure 140 decibels, would the soft sound of rustling leaves be safe or dangerous sound? Then estimate how loud it could be in decibels. It doesn't have to be exactly but it has to make sense.
It would be a safe sound and I would guess about 20 decibels.
500
There are three bones in the ear.
What is the hammer, anvil, and stirrup?
500
I keep my mouth open while I fly to make sounds! This helps me know where my prey is and to know where I am going. When I make a sound, the vibrations go to the objects close around me, the sound reflects off, and then comes back to me. This is called echolocation. Now I know where that tasty moth flew off to! Mmmmm, tasty!
What is a bat?
500
When vibrations are made, I travel through air, liquids, and solids.
What is sound waves?
500
Kyle and Parker decided to go to a Taylor Swift concert!They were so excited! The music in this concert was so loud! The loudness of the music reached up to 110 decibels. If safe hearing is around 60 decibels, than how much quieter should the music be?
50 decibels!
500
If 1000 Hz equals to 1 kHz, than 3000 equals to how many kHz?