科学素养与生活应用·英语30篇（7）

1 How a Light Switch Works 电灯开关如何工作 2 Why Your Phone Gets Hot 为什么手机会发热 3 Recycled Plastic Bottles Become Clothes 回收塑料瓶变成衣服 4 Solar Panels on Rooftops 屋顶上的太阳能板 5 How a Water Filter Cleans Tap Water 净水器如何净化自来水 6 Wind Turbines Make Clean Power 风力涡轮机生产清洁能源 7 Compost Turns Food Waste into Soil 堆肥将厨余垃圾变成土壤 8 LED Lights Use Less Energy LED灯更省电 9 Smart Thermostats Learn Your Habits 智能恒温器学习你的习惯 10 Paper Towels Absorb Spills Quickly 纸巾快速吸干洒出的液体 11 Rain Gauges Measure How Much It Rains 雨量计测量降雨量 12 Bike Helmets Protect Your Head 自行车头盔保护你的头部 13 How Automatic Doors Sense People 自动门如何感知人的靠近 14 Why Traffic Lights Change Colors Automatically 交通灯为何自动变换颜色 15 How Touchscreens Recognize Your Fingers 触摸屏如何识别你的手指 16 Why Escalators Move at Steady Speeds 自动扶梯为何保持匀速运行 17 How Motion Sensors Turn on Outdoor Lights 运动传感器如何触发户外灯亮起 18 Why Elevators Stop at Exact Floor Levels 电梯为何能精准停靠在指定楼层 19 How Automatic Faucets Detect Hands 自动水龙头如何感应双手 20 Why Ice Cubes Float in Water 为什么冰块会浮在水面上 21 How Magnetic Levitation Trains Float 磁悬浮列车如何实现悬浮 22 Why Leaves Change Color in Fall 为什么秋天树叶会变色 23 How Honeybees Make Hexagonal Honeycombs 蜜蜂如何建造六边形蜂巢 24 Why Salt Melts Ice on Roads 为什么盐能融化路面结冰 25 How Self-Driving Cars Detect Road Signs 自动驾驶汽车如何识别交通标志 26 Why Some Plants Close Leaves at Night 为什么有些植物夜间会闭合叶片 27 How Fire Alarms Sense Smoke Particles 烟雾报警器如何感知烟雾微粒 28 Why Ocean Waves Get Bigger Near Shore 为什么海浪靠近岸边会变大 29 How Bees Know Which Flowers Have Nectar 蜜蜂如何知道哪些花朵有花蜜 30 Why Rubber Bands Snap Back After Stretching 为什么橡皮筋拉伸后会弹回原状