light and sound by Alden Wang https://padlet.com/alden_wang/9v0kqdb54gd9 en-us 2016-01-19 19:29:22 UTC 2016-04-12 19:05:50 UTC hello@padlet.com http://www.tradefairdates.com/logos/light_and_sound_logo_5378.jpg alden_wang https://padlet.com/alden_wang/9v0kqdb54gd9/wish/96547320 2016-02-22 19:41:47 UTC https://padlet.com/alden_wang/9v0kqdb54gd9/wish/96547320 alden_wang https://padlet.com/alden_wang/9v0kqdb54gd9/wish/98301341 2016-03-01 20:00:22 UTC https://padlet.com/alden_wang/9v0kqdb54gd9/wish/98301341 alden_wang https://padlet.com/alden_wang/9v0kqdb54gd9/wish/98302716 2016-03-01 20:04:36 UTC https://padlet.com/alden_wang/9v0kqdb54gd9/wish/98302716 alden_wang https://padlet.com/alden_wang/9v0kqdb54gd9/wish/98303303 2016-03-01 20:06:28 UTC https://padlet.com/alden_wang/9v0kqdb54gd9/wish/98303303 The three propertys of sound alden_wang https://padlet.com/alden_wang/9v0kqdb54gd9/wish/98303374 are  sound travels sound can be reflected sound can absorbed.]]> 2016-03-01 20:06:46 UTC https://padlet.com/alden_wang/9v0kqdb54gd9/wish/98303374 The three properties of light alden_wang https://padlet.com/alden_wang/9v0kqdb54gd9/wish/104794860 light travels in a strait line.light reflect by glass.light goes everywhere when  was on grass.]]> 2016-04-08 13:21:34 UTC https://padlet.com/alden_wang/9v0kqdb54gd9/wish/104794860 alden_wang https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105345699 2016-04-12 15:18:05 UTC https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105345699 alden_wang https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105346551 2016-04-12 15:19:58 UTC https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105346551 alden_wang https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105346981 2016-04-12 15:21:05 UTC https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105346981 how sounds waves are made alden_wang https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105403315 sound is made when something moves or vibrates.]]> 2016-04-12 18:33:28 UTC https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105403315 light alden_wang https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105405720 A triangular prism dispersing a beam of white light. The longer wavelengths (red) and the shorter wavelengths (blue) get separated.]]> 2016-04-12 18:41:17 UTC https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105405720 alden_wang https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105407068 2016-04-12 18:46:17 UTC https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105407068 alden_wang https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105412091 2016-04-12 19:03:49 UTC https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105412091 intro alden_wang https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105412201 2016-04-12 19:04:13 UTC https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105412201 alden_wang https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105412509 2016-04-12 19:05:27 UTC https://padlet.com/alden_wang/9v0kqdb54gd9/wish/105412509