小学STEAM 项目：设计并测试纸桥承重能力实验报告 一、单项选择题（共10 题，每题2 分） 1. 在结构设计中，三角形比四边形更稳定主要是因为： A. 三角形边长更短 B. 三角形内角和为180° C. 三角形具有刚性结构特性 D. 三角形更容易绘制 2. 使用普通A4 纸制作承重结构时，通过折叠成瓦楞状能提高强度的 原理是： A. 增加美观度

小学STEAM 挑战：设计并测试纸飞机飞行稳定性实验 一、单项选择题（共10 题，每题2 分） 1. 影响纸飞机飞行距离的主要因素是： A. 纸张颜色 B. 投掷者身高 C. 机翼形状 D. 折叠次数 2. 为测试纸飞机稳定性，应优先改变： A. 投掷力度 B. 机翼面积 C. 测试场地大小 D. 折叠纸张的品牌 3. 下列哪项是控制变量的正确做法？

小学STEAM 项目：设计并测试纸飞机飞行距离挑战赛 一、单项选择题（共10 题，每题2 分） 1. 纸飞机获得升力的主要原理是： A. 重力作用 B. 伯努利效应 C. 静电吸附 D. 磁力排斥 2. 下列哪种纸飞机机翼形状最可能增加飞行距离？ A. 短而宽 B. 长而窄 C. 圆形 D. 方形 3. 投掷纸飞机时，最理想的出手角度是：

年小学科学STEAM 项目：设计并制作一座纸桥挑战赛 一、单项选择题（每题2 分，共20 分） 1. 在纸桥设计中，主要导致桥垮塌的力是什么？ A. 拉力 B. 推力 C. 重力 D. 摩擦力 2. 纸桥的承重能力主要受什么影响？ A. 纸的颜色 B. 纸的厚度 C. 桥的长度 D. 桥的重量 3. STEAM “ 中的E”代表什么？ D. 因为它便宜 6. 纸桥挑战中，承重测试通常测量什么？ A. 桥的长度 B. 桥的重量 C. 桥能承受的重量 D. 桥的颜色 7. 以下哪项不是STEAM 的组成部分？ A. 科学 B. 技术 C. 艺术 D. 语言 8. 折叠纸在纸桥设计中的作用是什么？ A. 增加美观 B. 增加强度 C 承重能力 C. 美观 D. 环保 2. 哪些结构元素能增加纸桥的稳定性？（多选） A. 三角形 B. 圆形 C. 拱形 D. 直线 3. STEAM 项目包括哪些领域？（多选） A. 科学 B. 技术 C. 工程 D. 艺术 E. 数学 4. 纸桥垮塌的可能原因有哪些？（多选） A. 重力过大

小学英语跨学科融合：用英语描述科学实验步骤练习 试卷 一、单项选择题（共10 题，每题2 分） 1. When we heat water, it turns into steam. This process is called: A) freezing B) melting C) evaporation D) condensation 2. Which tiny drops of water that form on a cold surface when warm, moist air touches it? A) Ice B) Steam C) Condensation D) Solution 4. To observe evaporation clearly, we should place water in heating water and seeing steam rise, what happens if you hold a cold plate above the steam? A) The plate gets hotter. B) Water droplets form on the plate. C) The steam disappears instantly.

D. stir 7. "Let the tea ______ before drinking." A. cool B. boil C. spill D. melt 8. Steam means something is very ______. A. cold B. light C. hot D. soft 9. "______ the pizza in the with hot food: ( ) A. Use mitts B. Blow on soup C. Touch steam D. Wait to cool 13. Warning signs for hot things: ( ) A. Steam B. Ice C. Red light D. Bubbles 14. Where can we heat food 分，共10 题） 21. You can touch a hot pan with bare hands. ( ) 22. "Warm" means slightly hot. ( ) 23. Steam is a sign that food is cold. ( ) 24. Reheat means to make food cold again. ( ) 25. Oven mitts protect

boiling water. As the water boiled, the steam made the top of the kettle bounce ____58____ and down. He thought deeply about what was happening, as steam was only water ____59____ seemed to be powerful amount of water. Later he experimented with steam and eventually developed the steam engine. This was ____62____ great success in improving the Newcomen steam engine, ____63____ was commonly used at the the time. Watt’s invention changed the course of human history. Steam engines helped to power factories that started the Industrial Revolution. With this ____64____ (come) new types of jobs and the availability

electricity is merely the second stage in the age of steam, which began a century earlier. "It is curious that no one has put together a history of both the steam and electric revolutions." writes Maury Klein Klein in his book The Power Makers, Steam, Electricity, and the Men Invented Modem America. Klein, a noted historian of technology, spins a narrative so lively that at times it reads like a novel. The Watt perfected "the machine that changed the world". Klein writes, "America did not invent the steam engine, but once they grasped its passwords they put it to more uses than anyone else. " Meanwhile

research experiments. C．To warn against overeating. D．To advise being a mindful eater. D Cooking with steam is of great importance in Chinese cuisine. It's one of the best ways to lock the original flavors steaming is a quick way to cook them without using much oil. Chinese cabbage is a perfect vegetable to steam: crunchy, tender, less fibrous and mildly sweet. The tender cabbage can be steamed directly with 34．What is the right order of making steamed fish according to the passage? Clean the fish. ① Steam the fish. ② Drizzle some sauce. Pour some hot oil onto the fish. ③ ④ Pack the fish with some

Solar panels 7. Which technology helps avoid traffic jams in smart cities? A. AI navigation B. Steam engines C. Manual signals D. Paper maps 8. Electric scooters are popular for: A. Long-distance infrastructure 16. Future transport trends may involve: (Choose three) A. Drone deliveries B. Steam locomotives C. Vertical takeoff vehicles D. Hyperloop networks 17. Benefits of public transport: