能源问题:流动,循环和保护


Crosscutting Concept 5: Matter and Energy - Flows, Cycles and Conservation In this video Paul Andersen explains how matter and energy flow and cycle through systems. He starts by explaining how energy and matter input and output will always be conserved. He addresses the many misconceptions surround energy and matter including the belief that food contains energy.

","title":"Matter and Energy","dominant_colors":[{"color":[14,14,14],"weight":0.65673828125},{"color":[124,148,160],"weight":0.146484375},{"color":[168,196,208],"weight":0.057861328125},{"color":[227,239,232],"weight":0.033935546875},{"color":[128,89,74],"weight":0.019775390625}],"url":"https://www.youtube.com/watch?v=U22h55dHIi0","height":360,"thumbnail_width":480,"width":640,"html":"","entropy":4.04220440093,"version":"1.0","type":"video","thumbnail_height":360,"authorName":"bozemanbiology","authorUrl":"http://www.youtube.com/user/bozemanbiology","providerName":"YouTube","providerUrl":"http://www.youtube.com/","thumbnailUrl":"http://i2.ytimg.com/vi/U22h55dHIi0/hqdefault.jpg","resolvedBy":"youtube","resolveObject":"Video","resolved":true}" data-block-type="32" id="block-50b7543e0ed34ee5b757">
" data-provider-name="YouTube">

下一代科学标准横切概念5:
物质和能量 - 流动,周期和保护

在这个视频中,Paul Andersen解释了如何通过系统和能量流动和循环。他通过解释能源和物质的投入和输出将始终节省能力。他解决了围绕环绕能源的许多误解,包括食物含有能量的信念。