探索科学的奇妙世界：苏州北美第三届科学素养大会精彩回顾

抛体射击游戏

这个活动用Phet在线网站模拟平抛和斜抛运动，吸引了大量同学排队参与。大家用课堂上学到的公式进行计算，瞄准、射击，成功击中目标的同学还赢得了小奖品，快乐与知识双丰收！

Projectile Shooting Game

This activity utilizes the PhET online platform to simulate both horizontal and oblique projectile motions, drawing large crowds of students eager to participate in the fun. Armed with formulas learned in class, they calculate, aim, and shoot, with those successfully hitting their targets rewarded with small prizes. It's a delightful blend of joy and knowledge, a win-win situation for all!

角动量守恒

轮子在空中不倒？这个现象让许多同学瞠目结舌。其实，这背后的秘密就是角动量守恒。在AP物理课上，同学们不仅学到了能量守恒，还了解了动量和角动量守恒的奇妙世界。

Conservation of Angular Momentum

Why does a spinning wheel remain upright in mid-air, leaving many students in awe? The secret lies in the conservation of angular momentum. In their Advanced Placement (AP) Physics classes, students not only delve into the conservation of energy but also uncover the fascinating realm of momentum and angular momentum conservation.

全息成像

物理荣誉课的学生们利用光的反射原理制作了全息成像设备。悬浮在空中的影像让参观的同学们纷纷惊叹：“太酷了！”

Holographic Imaging

Students enrolled in the physics honors course have crafted a holographic imaging device leveraging the principles of light reflection. The floating images they produced elicited gasps of amazement from fellow students who visited their exhibition, exclaiming, "This is so cool!"

VR眼镜

VR眼镜的制作原理是光的透镜原理。现场组织的同学给围观者耐心解释了这其中的原理，即透镜焦点的光平行射出后，人眼接收到的图像会被误认为是远处，从而产生立体感。大家戴上VR眼镜，仿佛进入了另一个世界。

VR Goggles

The working principle behind VR goggles is rooted in the optical lens theory. The organizing students patiently explained to the spectators that when light from the focal point of the lenses emerges in parallel, the image received by the human eye is mistakenly perceived as being distant, thereby creating a sense of depth and immersion. As people put on the VR goggles, they seemed to be transported into an entirely different world.

人造闪电

人造闪电装置通过变压器变压和LC电路的充放电实现了闪电效果。参观的同学们跃跃欲试，用手触摸人造闪电，亲身感受电磁学的魅力。

Artificial Lightning

The artificial lightning device achieves its electrifying effect through the use of a transformer for voltage transformation and the charging and discharging of an LC circuit. Excited visitors couldn't resist the urge to try their hand at touching the artificial lightning, personally experiencing the allure of electromagnetism in a thrilling manner.

黑火蛇实验

黑火蛇的主要成分是碳。糖作为碳水化合物，燃烧产物有水、气体、碳和二氧化碳。小苏打在加热时分解出大量二氧化碳，使燃烧后的碳形成多孔蓬松的黑碳柱，仿佛一条条“火蛇”在爬动。

Black Snake Experiment

The main component of the black snake experiment is carbon. When sugar, a carbohydrate, burns, it produces water, gases, carbon, and carbon dioxide as byproducts. When baking soda is heated, it decomposes rapidly, releasing a large amount of carbon dioxide. This gas forces the carbon residue from the sugar combustion to form porous and fluffy black carbon columns, which resemble writhing "fire snakes." The experiment showcases a fascinating interplay between chemistry and physics, captivating audiences with its unique visual display.

分子料理

分子料理通过“正向球化技术”和“反向球化技术”让食材变得既好吃又好玩。学生们DIY自己的分子料理，体验科学与美食的双重乐趣。

Molecular Gastronomy

Molecular gastronomy combines the art of cooking with the science of food, leveraging techniques such as "spherification" (both positive and reverse) to transform ingredients into both delicious and entertaining culinary creations. Students were given the opportunity to DIY their own molecular dishes, indulging in the dual joys of science and gastronomy as they experimented with unique textures and flavors.

DNA提取

使用简单的厨房用品（洗洁精和食盐）破坏草莓细胞膜结构并稳定其DNA结构，再利用DNA不溶于酒精的特点，使DNA在酒精中沉淀并成功提取。看着白色的DNA缓缓出现，大家都兴奋不已。

DNA Extraction

With simple kitchen ingredients like dish soap and salt, students were able to disrupt the cell membrane of strawberries and stabilize their DNA. By exploiting the property that DNA is insoluble in alcohol, they precipitated the DNA out of solution, allowing it to be successfully extracted. As the white strands of DNA gradually emerged, excitement filled the air as everyone marveled at the wonders of biology and the power of everyday items.

天然调色板

吉利丁粉是一种从动物骨骼中提取的蛋白质，具有凝固作用。它不仅能轻松控制颜色，还可以在上面绘制各种图案，增加纹理。吉利丁粉在食品行业也有广泛应用，比如制作甜点时可以让它们更美观、更有创意。

Natural Palette

Gelatin powder, a protein extracted from animal bones, possesses remarkable coagulating properties that make it a versatile tool in the culinary arts. Beyond its functional role, gelatin powder also excels as a natural coloring agent and canvas for artistic expression. It allows for precise color control and serves as a surface on which intricate patterns and textures can be skillfully crafted. In the food industry, gelatin powder finds widespread application, enhancing the aesthetic appeal and creativity of desserts, making them not only delicious but also visually stunning.

血型测定

通过抗原-抗体特异性识别原理，采集指尖血分别滴加到抗A和抗B单克隆抗体中，肉眼观察是否凝集两秒即可判断血型。现场测了32位同学的血型，许多同学都是第一次知道自己的血型呢！

Blood Type Determination

Leveraging the principle of antigen-antibody specific recognition, blood type determination was conducted by collecting a small amount of blood from the fingertip and separately adding it to anti-A and anti-B monoclonal antibodies. By simply observing whether agglutination occurs within two seconds, one can accurately determine one's blood type. During the event, 32 students had their blood types tested, with many discovering their blood type for the very first time! It was a fascinating and educational experience that sparked curiosity and interest in the field of biology.

自制酸奶

七年级的同学们利用生物课上的知识自制了酸奶。乳酸菌利用牛奶进行厌氧发酵生成乳酸，从而形成酸奶。发酵后的酸奶不仅营养丰富，而且更易于人体吸收。自制酸奶在现场大受欢迎！

Homemade Yogurt

Students from the seventh grade put their biology lessons into practice by crafting their very own yogurt. Utilizing lactic acid bacteria, they initiated an anaerobic fermentation process in milk, which converted lactose into lactic acid, resulting in the formation of yogurt. The fermented yogurt, not only rich in nutrients but also more easily digestible by the human body, proved to be a hit among the participants. The hands-on experience not only delighted their taste buds but also deepened their understanding of the wonders of microbial fermentation.

这次活动展示了学生们运用科学知识的能力，让每一位参与者都感受到了科学的奇妙与魅力。从令人惊叹的实验现象到动手制作的趣味体验，大家在欢声笑语中收获了满满的知识与惊喜。科学的好奇心就像灯塔一样，照亮了我们前行的道路，指引并激励着我们在科学的世界中不断探索和前行。

This event showcased the students' remarkable ability to apply scientific knowledge, immersing every participant in the wonder and charm of science. From awe-inspiring experimental phenomena to engaging hands-on crafting experiences, laughter and excitement filled the air as everyone reaped a bountiful harvest of knowledge and surprises. The curiosity ignited by science serves as a beacon, illuminating our path forward and inspiring us to continue exploring and advancing within the vast realm of scientific discovery.