认识周期表中的周期和族。可以用两种方式，即族和周期对周期表中的元素进行细分。如何区别呢？又与周期表的发展有何关系？从这个视频了解更多。 请访问我们的网站 www.fuseschool.org，我们所有的视频都按主题和特定的顺序精心编排，并查看我们还提供了什么。评论、喜欢并与其他学习者分享。你可以提问，也可以回答问题，老师会给你回复。 这些视频可以用于翻转课堂模式，也可以作为复习辅助工具。 点击这里查看更多视频：https://alugha.com/FuseSchool Twitter: https://twitter.com/fuseSchool 在FuseSchool平台和应用中获得更深层次的学习体验：www.fuseschool.org。 本开放教育资源是免费的，采用知识共享许可证。署名-非商业性 CC BY-NC ( 查看许可证契约: http://creativecommons.org/licenses/by-nc/4.0/ )。 你可以下载该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。
Plants have developed responses called tropisms. A tropism is a growth in response to a stimulus; so light and water in the plant’s case. There are different types of tropisms: Positive tropisms are when growth is towards the stimulus - so the plant growing towards the light to maximise the stimul
Click here to see more videos: https://alugha.com/FuseSchool CREDITS Animation & Design: Waldi Apollis Narration: Dale Bennett Script: Lucy Billings Look at these baby animals. You will have immediately observed how cute and fluffy they are but you will also have noticed that they are different -
Click here to see more videos: https://alugha.com/FuseSchool Enzymes are really important proteins, that speed up the rates of reactions such as in photosynthesis, respiration and protein synthesis. The enzymes and substrates are always moving, and occasionally they collide at the right speed and
