Click "Read More" at the end of the article to check out Year 4 Scientific Exploration Exhibition Website

点击最下方"阅读原文"可查看四年级科学主题探究成果展网站.

Or here is the link:

或复制链接:

https://www.hogwartsscientificaobscura.com/

WEBSITE

Students investigated which materials were suitable for covering food surfaces. Their goal was to find materials that would not absorbent or scratch easily and prevent the growth of bacteria. They determined that stainless steel was the most suitable material through predictions, experiments, data, and investigations. They tested various materials such as wood, stainless steel, glass, cardboard, ceramic, and cling film. Experimental tests and statistics were carried out on the above materials, so they concluded that stainless steel was the most suitable material for food surfaces.

学生们寻找适用于覆盖食物表面的材料。他们的目标是寻找不易吸水或不易划损的材料，以预防细菌的滋生。他们对多种材质进行实验测试，如木头、不锈钢、玻璃、纸板、陶瓷、保鲜膜。通过对以上材料进行了实验测试和数据统计，他们得出的结论是不锈钢是最适合用于保护食品表层的材料。

Students were looking for a material for the most suitable insulator, as hot drinks could be served in the tent. Students explored, experimented, tested, and recorded data around the topic, concluding that the card cups acted as the best insulation. The card cup keeps the container at a specific temperature for the longest time, but it only lasts for 20 minutes; if it takes longer than 20 minutes to finish the drink, students suggested using a tin can. Also, paper cups are the best insulators, and paper cups are less likely to be burned than tin cans; tin cans are a good conductor of heat.

为了可以在帐篷中供应热饮，学生需要找出最适合的绝缘体和最保温的材料。学生们由此展开探索、实验测试、记录数据，得出的结论是纸杯具有最好的保温作用。纸杯让容器的温度在最长的时间内保持一定的温度，但是它只能维持20分钟；如果超过20分钟才能喝完，学生建议使用锡罐。同时，纸杯是最优良的绝缘体，纸杯比被锡罐烫伤的可能性要小；锡罐具有较强的导热性。

The students explored which material would be the most suitable for the food containers and, through a series of investigations, found that Brown Card would be the most suitable material. Brown Paper is easy to fold but not easy to shape, so Brown Card was the students' final choice.

学生们在探究哪种材料最适合用作于食物打包盒，通过一系列的探究发现牛皮硬纸是最适合的材料。牛皮纸材质的特性是容易折叠，但不容易变形，因此牛皮硬卡纸是学生们最终的选择。

In Harry Potter, magic wands are a tool used by wizards to perform magic, a long wooden bar with an inner core that can emit powerful and dangerous electrical energy. The students conducted research tests to find the best electrical conductor and insulator material. Ultimately, the students concluded that plastic and metal were the most suitable materials for the wand. They decided that metal was the most suitable material because it is a good conductor of electricity and does not break easily. Plastic is a good material because it is a good insulator, meaning it does not conduct electricity well. Another interesting fact is that it does not melt easily.

在哈利·波特的故事中，魔杖是巫师用于施展魔法的工具，外形是一根长条状的木棍，含内芯，可以释放强大且危险的电能。因此，学生们需要通过调查测试寻找一种最好的电导体材料和良好的电绝缘体。最后，学生的结论是塑料和金属最适合制作魔杖的材料。学生们认为金属是最合适作内芯的材料，因为它是一个很好的电导体，而且不容易损坏。塑料是作魔杖外壳的最佳材料，因为它是一种良好的绝缘体，这意味着它具有较差的导电能力。另一个有趣的事实是，它不会轻易融化。

Students were asked to explore and investigate which material would be the best sound insulator. Through decibel tests and investigations, the foam was the best material for sound insulation. The foam reduces loud volumes by 10 decibels, from 88 to 77 decibels, and the material is soft.

为了制作降噪耳罩，学生们需要寻找最佳的隔音材料。通过分贝测试和调查，发现泡沫是最佳隔音的材料。泡沫可以将巨大的音量降低10分贝，如从88分贝到77分贝，并且泡沫材质柔软，适合佩戴。

Students tested the solubility of breadcrumbs, salt, sugar, cocoa powder, coffee, and flour to find the ingredients with the lowest melting points and those suitable for making them into beverages. Through experimental research and statistics, cocoa powder and coffee were the most suitable beverage ingredients.

学生们对面包屑、盐、糖、可可粉、咖啡、面粉进行了可溶性测试，寻找熔点最低的材料以及适合制作成饮料的材料。通过实验调查与数据统计，可可粉和咖啡是最适合制作成饮料的原材料。