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10
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Can you hear an echo if the sound hits the curtains in your house?
No (it is a soft surface)
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10
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Name the three parts of a ear.
Inner, Middle and Outer ear
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10
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Why do bats use echolocation?
To fly at night, and to find objects and food
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10
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What is decibel?
Measurement to calculate volume
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10
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How are human actions affecting dolphins and whales to travel in the oceans and seas?
Too much a disturbance and sound in the oceans and seas causes sea creatures to get confuse and difficult to track echolocation
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10
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In this picture, which sound waves show high pitch?
Blue sound waves
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seesaw
Swap points!
Oops!
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magnet
Take 25 points!
Okay!
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gift
Win 15 points!
Okay!
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baam
Lose 20 points!
Oops!
10
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Which part of our ear vibrates when sound waves reach it?
Eardrums
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10
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Sing in lower than 30 decibels to a friend
--
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10
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What do sea creatures use to travel in the deep ocean?
Echolocation
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10
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Why is this person wearing headphones?
Noise cancellation headphones to protect their ears from the loud sounds on the runway
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10
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What is echo?
A repeated sound caused by the reflection of a soundwave
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monster
Reset all scores!
Oops!
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shark
Other team loses 25 points!
Okay!
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rocket
Go to first place!
Okay!
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lifesaver
Give 15 points!
Oops!
10
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How does earwax help us?
Fights infection and traps dirt to keep the ear clean
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10
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Why can we hear an echo in a large cave and not in your bedroom?
There has to lots of space and surrounded by a hard surface
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baam
Lose 10 points!
Oops!
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seesaw
Swap points!
Okay!
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gift
Win 25 points!
Okay!
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banana
Go to last place!
Oops!
×
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