https://padlet.com/kstocz/f30qv6qqtt81 Made with ♥ en-us 2018-03-07 14:17:43 UTC 2023-04-01 20:30:14 UTC hello@padlet.com https://padlet.com/kstocz/f30qv6qqtt81/wish/239151016 - An echo is when a sound wave hits something and bounces back 
-There is tiny bones in our ear
-Sound travels 18 times faster through metal than air
-Noise can cause other objects to vibrate]]> 2018-03-07 14:22:57 UTC https://padlet.com/kstocz/f30qv6qqtt81/wish/239151016 https://padlet.com/kstocz/f30qv6qqtt81/wish/239151124 Sound is vibrations and waves in the air that reach our ears.

When sound waves enter your ear they become smaller.]]> 2018-03-07 14:23:07 UTC https://padlet.com/kstocz/f30qv6qqtt81/wish/239151124 https://padlet.com/kstocz/f30qv6qqtt81/wish/239151143 Sound is tiny vibrations in the air and sound waves make air molecules squeeze together. Sound travels faster through metal than through air.]]> 2018-03-07 14:23:08 UTC https://padlet.com/kstocz/f30qv6qqtt81/wish/239151143 https://padlet.com/kstocz/f30qv6qqtt81/wish/239151196 The new info we learned today from watching Bill was: that hospitals use ultrasounds to see how a baby is doing. We also learned that if you place a tube up to your ear it will take longer for the sound to reach your ear.  ]]> 2018-03-07 14:23:13 UTC https://padlet.com/kstocz/f30qv6qqtt81/wish/239151196 https://padlet.com/kstocz/f30qv6qqtt81/wish/239151267 The way we figure out were sound comes from is how long it takes to reach either ear.
Sound travels 18 times faster though solids than air]]> 2018-03-07 14:23:20 UTC https://padlet.com/kstocz/f30qv6qqtt81/wish/239151267 https://padlet.com/kstocz/f30qv6qqtt81/wish/239151325 sound travels 18 times faster through metal than air, ear bones are shaped like hammers, sound travels through your ear canal and vibrations are sent to the eardrum and then sends vibrations to the brain.]]> 2018-03-07 14:23:24 UTC https://padlet.com/kstocz/f30qv6qqtt81/wish/239151325 https://padlet.com/kstocz/f30qv6qqtt81/wish/239151354 It takes 100th of a second to hear something
To break glass you must produce a pitch and frequency the same as the object. ]]> 2018-03-07 14:23:26 UTC https://padlet.com/kstocz/f30qv6qqtt81/wish/239151354 https://padlet.com/kstocz/f30qv6qqtt81/wish/239151598 You have to match the glasses frequency to break it.
Piano keys have a certain sound because the strings match their frequency.]]> 2018-03-07 14:23:45 UTC https://padlet.com/kstocz/f30qv6qqtt81/wish/239151598 https://padlet.com/kstocz/f30qv6qqtt81/wish/239151937 Did you know that...
Apparently your voice will sound "richer" in the shower because of the solid walls around you. And also, you figure out where sounds come from by sensing the amount of time it takes to get to you in contrast to the other ear.]]> 2018-03-07 14:24:20 UTC https://padlet.com/kstocz/f30qv6qqtt81/wish/239151937 https://padlet.com/kstocz/f30qv6qqtt81/wish/239167235 2018-03-07 14:46:57 UTC https://padlet.com/kstocz/f30qv6qqtt81/wish/239167235 https://padlet.com/kstocz/f30qv6qqtt81/wish/239167354 2018-03-07 14:47:05 UTC https://padlet.com/kstocz/f30qv6qqtt81/wish/239167354