了解水检测基本知识。用什么方法和技术来检测水？又为什么要进行水测试？从视频中了解更多信息！ 这段视频是 “全民化学” 的一部分，也是 Fuseschool 基金会的化学教育项目，该项目是 Fuseschool 背后的组织。此视频可以在翻转的课堂模型中使用，也可以作为学习辅助工具。 点击这里查看更多视频：https://alugha.com/FuseSchool Twitter：https://twitter.com/fuseSchool 在 FuseSchool 平台和应用程序中获得更深层次的学习体验：www.fuseschool.org 此开放式教育资源在知识共享许可协议下免费使用：署名-非商业性 CC BY-NC（查看许可证契约：http://creativecommons.org/licenses/by-nc/4.0/）。你可以下载视频用于非营利性的教育用途。如果你想修改视频，请联系我们：info@fuseschool.org
Interest is the amount charged by a lender to a borrower. It means that if you borrow some money from a bank, you have to pay back more than the money you borrowed. Equally, if you have a savings account and deposit some money, the bank will pay you interest as a sort of thank you for saving with th
In this video we are going to look at a few different ways in which plant hormones can be used. Plant growth hormones (auxins) can be used as selective weedkillers. The selective weedkillers contain growth hormones, that cause the weeds to grow really quickly. This means the weed is absorbing nutr
Algebraic fractions are simply fractions with algebraic expressions either on the top, bottom or both. We treat them in the same way as we would numerical fractions. In this video we look at how to simplify algebraic fractions, and how to add and subtract them. VISIT us at www.fuseschool.org, wh
