Team 1
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Team 2
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Teams
Name
Score
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heart
Other team wins 10 points!
Oops!
×
seesaw
Swap points!
Okay!
×
gift
Win 25 points!
Okay!
×
banana
Go to last place!
Oops!
15
×
What is the range of sounds that human can hear?
Human can hear sounds from 20 to 20,000 Hz.
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15
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What do we use to measure the volume of sound?
We use decibels (dB).
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15
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What volume is the best for human’s ears?
50 dB
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15
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How loud is the sound of a jet engine?
140 dB
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15
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What is the range of sounds that dolphins can hear?
Human can hear sounds from 75 to 200,000 Hz.
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monster
Reset all scores!
Oops!
×
gold
Win 50 points!
Okay!
×
rocket
Go to first place!
Okay!
×
lifesaver
Give 25 points!
Oops!
25
×
What unit do we use to measure the movement of sound?
We use hertz (Hz) to measure the movement of sound.
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15
×
How loud is the sound of a rock concert?
115 dB
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15
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It’s too small. I can’t hear it.Can you ___________, please?
Can you turn the volume up, please?
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15
×
It’s too loud! Can you ___________, please?
Can you turn the volume down, please?
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15
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Why your parents tell you to turn the volume down when you are listening to loud music?
Because listening to loud music can hurt your ears.
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thief
Give points!
5
10
15
20
25
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fairy
Take points!
5
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25
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fairy
Take points!
5
10
15
20
25
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baam
Lose 25 points!
Oops!
15
×
What do you wonder?
...
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