图书介绍
探索科学pdf电子书版本下载
- 李国瑞选注 著
- 出版社: 上海:上海外语教育出版社
- ISBN:7218·123
- 出版时间:1984
- 标注页数:110页
- 文件大小:3MB
- 文件页数:117页
- 主题词:
PDF下载
下载说明
探索科学PDF格式电子书版下载
下载的文件为RAR压缩包。需要使用解压软件进行解压得到PDF格式图书。建议使用BT下载工具Free Download Manager进行下载,简称FDM(免费,没有广告,支持多平台)。本站资源全部打包为BT种子。所以需要使用专业的BT下载软件进行下载。如 BitComet qBittorrent uTorrent等BT下载工具。迅雷目前由于本站不是热门资源。不推荐使用!后期资源热门了。安装了迅雷也可以迅雷进行下载!
(文件页数 要大于 标注页数,上中下等多册电子书除外)
注意:本站所有压缩包均有解压码: 点击下载压缩包解压工具
图书目录
Unit 1 Expeditions for Science 1
Exploring Antarctica 2
A Land of Ice 4
Why Go? 5
Ice and Glaciers 6
Icebergs 8
The Arctic 10
Is There Life? 11
The Changing Earth 12
Expeditions in Review 12
Unit 2 Time and the Stars 15
Rotation of the Earth 16
From West to East 19
Day and Night 21
Noon and Midnight 22
Time and Rotation 22
The Clock in the Sky 24
Revolution of the Earth 26
Time in Review 26
Unit 3 Exploring the Sky 29
Up and Away 30
Lift 30
Drag 34
Thrust 36
The Controliable Parts 38
Helicopters 38
The Jet Airplane 39
Flight in Review 40
Unit 4 Sound and How It Travels 43
Sound Vibrations 44
The Speed of Sound 46
Flying Faster Than Sound 46
Controlling Sound Waves 47
Your Hearing 51
Silent Sounds 53
Unit 5 Electricity and Magnetism 57
What Can Magnets Do ? 58
Electromagnets 62
Electromagnets and Sound 66
How Do Motors Work ? 68
Unit 6 Understanding Heat 75
Temperature 75
Thermometers 77
Molecules in Motion 80
Expansion and Contraction 81
Traveling Heat 83
Conduction 86
Convection 88
Radiation 92
Removing Heat 95
Glossary 99