Material Transformation Science Experiment | 线上科学课堂，居家玩转小实验

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Written by Danielle

In their Science classes, Year 5 have been learning the unit: Materials and the students have been investigating solids, liquids and gases. The students took part in different experiments when they were offline and they have also taken part in experiments online such as slow evaporation and testing solubility.

在科学课上，五年级学生一直在学习单元：材料，学生们一直在研究固体、液体和气体。这些学生在线下课时参加了不同的实验，他们也参加了在线实验，如挥发和测试溶解度。

In order to help them remember the technical Science vocabulary from this unit, the students created videos of them showing how to do the Science experiments. By teaching others it helps them to have a deeper understanding of what they"re learning and it can help them to remember what they"ve learnt. It also encourages them to practice their English speaking skills and presenting skills too whilst we are offline. As you can see from the video, the students have done an amazing job and they"re all presenting in their second - or even their third language!

为了帮助他们记住本单元的技术科学词汇，学生们制作了展示如何进行科学实验的视频。通过教别人，他们可以更深入地了解他们正在学习的内容，并记住所学的内容。这也鼓励他们在线下练习英语口语和演讲技巧。正如你从视频中看到的，学生们做得非常出色，他们都在用第二种甚至第三种语言演讲！

Other students can benefit from their videos by watching and learning how they can do fun Science activities at home with their siblings or parents using minimal equipment. Whilst we are offline, the students are unable to take part in some of the practical activities that they might usually do at school, but this is a way for them to take part in practical activities where they can learn lots and be away from screens. You can do all of the experiments by using things that you have around the house - but students should please make sure they ask for parental permission and help to clean up any mess afterwards.

其他学生可以通过观看和学习如何在家中与兄弟姐妹或父母一起使用最少的设备进行有趣的科学活动，从而从他们的视频中受益。当我们进行线上课时，学生无法参加他们通常在学校进行的一些实践活动。这个活动他们参加实践的一种方式，他们可以在实践活动中学到很多东西，远离屏幕。你可以用家里的东西做实验，但学生们应该确保他们得到家长的允许，并在之后帮助清理乱糟糟的东西。

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Thank you to the supportive parents and siblings of the students in Year 5 for helping them organise the materials and film their Science experiments.

Amazing work, Year 5! You should continue to be proud of yourselves for your hard work online and your brilliant presenting skills and explanations! Keep it up!

感谢支持五年级学生的父母和兄弟姐妹们，帮助他们整理材料并拍摄他们的科学实验。

五年级的作品太棒了！你们应该继续为自己在网课的努力以及你出色的演讲技巧感到骄傲！坚持下去！

This activity links to the following Cambridge learning objectives.

该活动与以下剑桥学习目标相联系。

5Cp.02Know the main properties of water (limited to boiling point, melting point, expands when it solidifies, and its ability to dissolve a range of substances) and know that water acts differently from many other substances.

了解水的主要性质（限于沸点、熔点、凝固时膨胀以及溶解一系列物质的能力），并了解水的作用与许多其他物质不同。

5Cp.01Know that the ability of a solid to dissolve and the ability of a liquid to act as a solvent are properties of the solid and liquid.

知道固体的溶解能力和液体作为溶剂的能力是固体和液体的性质。

5Cc.03Investigate and describe the process of dissolving and relate it to mixing.

调查并描述溶解过程，并将其与混合联系在一起。

5Cc.02Understand that dissolving is a reversible process and investigate how to separate the solvent and solute after a solution is formed.

了解溶解是一个可逆的过程，并研究如何在溶液形成后分离溶剂和溶质。

5TWSp.03Make predictions, referring to relevant scientific knowledge and understanding within familiar and unfamiliar contexts.

在熟悉和不熟悉的背景下，参考相关的科学知识和理解进行预测。

5TWSc.06Carry out practical work safely.

安全开展实际作业。

5TWSp.01Ask scientific questions and select appropriate scientific enquiries to use.

提出科学问题并选择适当的科学查询。

5TWSa.03Make a conclusion from results informed by scientific understanding.

根据科学理解得出结论。