Science Literacy Fourth Grade Unit 3 SOUND. sound energywave frequencypitch.
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Transcript of Science Literacy Fourth Grade Unit 3 SOUND. sound energywave frequencypitch.
Science LiteracyFourth Grade Unit 3
SOUND
sound energy wave
frequency pitch
The Story of Sound
Sound Sequence Sound Object Making the Sound
1
2
3
4
5
https://www.youtube.com/watch?v=7-7eekV9gPc
Comic Strip Framing: Example 1
Comic Strip Framing: Example 2
Comic Strip Framing: Example 3
Statement Yes No Why
Sound waves travel faster through air than a brick wall.
It takes only 1/100th of a second for us to hear sound.
Ear drums vibrate like musical drums.
Slow sound waves make low sounds.
Humans can make a wide variety of sounds.
http://www.blinkx.com/ce/EaQkwuTNhzJdzjdx3oF19KYARWFRa3d1VE5oekpkempkeDNvRjE5S1lBRWFRa3d1VE5oekpkemp?id=1731868069
Word Before Reading After Reading Discussion/Examples
Sound waves
Vibration
Molecules
Frequency
Pitch
Sound is a type of energy made by vibrations. When any object vibrates, it causes movement in
molecules of air. These molecules are tiny, so tiny we can’t see them, but they create all of the
sound we hear. These molecules of air bump into other air molecules close to them, which makes
them vibrate too. As the molecules vibrate into each other it causes them to continue bumping into
more air molecules. This movement, called sound waves, keeps going until they run out of energy.
If your ear is within range of the vibrations, you hear the sound.
Picture a stone thrown into a still body of water. The rings of waves expand indefinitely. The same
is true with sound. Irregular repeating sound waves create noise, while regular repeating waves
produce musical notes.
Sound Sequence
Sound Object Making the
Sound
Pitch of Sound
Frequency of Sound
1
2
3
4
5
https://www.youtube.com/watch?v=L0MK7qz13bU
https://www.youtube.com/watch?v=iBktYJsJq-E
Illustration of LOW Frequency
Sounds
Illustration of HIGH Frequency
Sounds
Illustration of how sound travels from person to person
Sounds I hear everyday
Sound