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十万个为什么·科学启蒙30篇（2）

共 30 篇 · 文字目录

1 Why Do Ice Cubes Float in Water? 为什么冰块会浮在水面上？
2 How Do Plants Make Their Own Food? 植物如何自己制造食物？
3 What Causes Thunder and Lightning? 雷声和闪电是如何产生的？
4 Why Do We Yawn? 我们为什么会打哈欠？
5 How Do Satellites Stay in Orbit Without Falling? 卫星如何绕地球运行而不坠落？
6 Why Do Some Animals Hibernate? 为什么一些动物会冬眠？
7 What Makes Popcorn Pop? 爆米花为什么会爆开？
8 How Do Touchscreens Actually Work? 触摸屏究竟是如何工作的？
9 Why Is the Sky Blue? 天空为什么是蓝色的？
10 How Do Vaccines Train Your Immune System? 疫苗是如何训练免疫系统的？
11 Why Do We Have Fingerprints? 人类为什么有指纹？
12 What Happens When You Get an Electric Shock? 触电时身体会发生什么？
13 Why Do Bridges Not Collapse Under Heavy Traffic? 为什么桥梁不会在重载车流下坍塌？
14 How Do Fireflies Produce Cold Light? 萤火虫如何发出冷光？
15 Why Do We See Mirages on Hot Roads? 为什么我们在炎热的路面上看到海市蜃楼？
16 How Do GPS Devices Know Your Exact Location? GPS设备如何知道你的精确位置？
17 Why Do Onions Make You Cry When You Cut Them? 为什么切洋葱时会流泪？
18 How Do Submarines Control Their Depth Underwater? 潜艇如何控制水下的深度？
19 Why Do Ice Skates Glide Smoothly on Ice? 为什么冰刀能在冰面上顺畅滑行？
20 How Do Solar Panels Turn Sunlight into Electricity? 太阳能电池板如何把阳光变成电？
21 Why Do Some Animals Hibernate While Others Migrate? 为什么有些动物冬眠，而另一些则迁徙？
22 What Causes the Northern Lights to Dance Across the Sky? 北极光为何在夜空中舞动？
23 How Do Ants Build Such Complex Underground Cities? 蚂蚁如何建造如此复杂的地下城市？
24 Why Does Chewing Gum Stay Chewy Instead of Dissolving Like Candy? 为什么口香糖嚼起来有弹性，不像糖果那样溶解？
25 Why Do Birds Migrate Thousands of Miles Each Year? 为什么鸟类每年要迁徙数千英里？
26 How Do Vaccines Help Your Body Fight Diseases? 疫苗是如何帮助身体抵抗疾病的？
27 Why Do Volcanoes Erupt After Being Quiet for Years? 为什么火山在沉寂多年后会突然喷发？
28 How Do Bees Communicate the Location of Flowers to Their Hive? 蜜蜂如何向蜂巢同伴传递花朵的位置信息？
29 Why Does Sound Travel Faster in Water Than in Air? 为什么声音在水中比在空气中传播得更快？
30 How Do Plants 'Know' When It’s Time to Bloom in Spring? 植物是如何‘知道’春天到了该开花的？