https://padlet.com/henry_liu5/k2n2k7k1afjn en-us 2016-02-22 19:23:32 UTC 2016-04-23 17:34:30 UTC hello@padlet.com henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/96549105 2016-02-22 19:46:54 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/96549105 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/96549968 you make sound waves when you make a sound]]> 2016-02-22 19:49:41 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/96549968 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/97578821 Educational video with animation]]> 2016-02-26 16:10:51 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/97578821 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/98012386  light source is lights that wasn't made by man or women.]]> 2016-02-29 19:51:52 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/98012386 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/98013061 2016-02-29 19:54:17 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/98013061 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/98300106 Sound waves moving

]]> 2016-03-01 19:56:33 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/98300106 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/98301347 Light goes in a straight line. ]]> 2016-03-01 20:00:23 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/98301347 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105340938 if we had no light no one would be able to see and so that we wouldn't know if its day or night and so many accident would happened cause we cant see]]> 2016-04-12 15:04:00 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105340938 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105342613 if we had no sound we cant learn and the teacher would have to do hand language or write words on a paper then after 200 years we would turn back to cave mans]]> 2016-04-12 15:09:32 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105342613 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105409098 2016-04-12 18:54:15 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105409098 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105409442 exiperment]]> 2016-04-12 18:55:28 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105409442 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105409690 what if we had no light?
well,i am going to tell you why?]]> 2016-04-12 18:56:19 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105409690 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105410093 what if there were no sound?
i am going to expain why]]> 2016-04-12 18:57:36 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105410093 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105410891 these are why we need light and sound ]]> 2016-04-12 18:59:57 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105410891 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105411051 2016-04-12 19:00:26 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105411051 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105925761 the moon does not give us light the sun does because when the moon come out the sun is behind the moon so the sun will hit his light at the moon.]]> 2016-04-15 00:50:50 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105925761 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105926611 pencil bend in water because when light touch water it will bend then its not actually bend  maybe your eyes are tricking you.]]> 2016-04-15 01:03:38 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105926611 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105926849 how do you make shadow puppets? well first you gotta have a light source and be in the dark put your hands in front of the  light then you will see a shadow.now what are you waiting? go mke shadow puppets.]]> 2016-04-15 01:06:12 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105926849 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105927609 this comes natural when rain comes and meet sun it will create rainbow.]]> 2016-04-15 01:18:11 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105927609 henry_liu5 https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105928011 in this video you will learn what is sound]]> 2016-04-15 01:23:10 UTC https://padlet.com/henry_liu5/k2n2k7k1afjn/wish/105928011