致学生
致老师
1 A Eating for Good Health
1 B Nutritional Facts and Myths
2 A Sea Mammals
2 B A Powerful Killer
3 A What Is a Mineral?
3 B Mohs Scale of Mineral Hardness
4 A Global Warming
4 B Mario J. Molina and the Banning of CFCs
5 A The Renaissance： A Rebirth of Learning
5 B Leonardo da Vinci
6 A What Is a Geneticist?
6 B Rosalind Franklin and the Structure of DNA
7 A The Beauty of Orchids
7 B How to Grow Orchids from Seed
8 A The Science of Golf
8 B The Evolution of the Golf Ball
9 A Animal Classification： Vertebrates and Invertebrates
9 B Cephalopods
10 A The Life Cycle of a Star
10 B The Andromeda Galaxy
11 A Earths Changing Landscape
11 B Trees： Anchors of Earths Crust
12 A How to Avoid Avalanches
12 B Surviving an Avalanche
13 A The Three Phases of Matter
13 B How Does Temperature Influence Matter?
14 A The Beneficial Garter Snake
14 B Snakebites and Antivenin
15 A Avoiding a Water Crisis
15 B Keeping Drinking Water Clean and Safe
16 A The World of Dinosaurs
16 B Paleontologist： Fossil Detective
17 A Poisonous Plants
17 B Poisonous Mushrooms
18 A The Electromagnetic Spectrum
18 B Do Animals See Color?
19 A Isaac Newtons Three Laws of Motion
19 B Laws of Motion at an Amusement Park
20 A Using Technology to Predict Weather
20 B Preparing for Hurricanes
21 A Endangered Species
21 B Mountain Gorillas
22 A Radioactivity
22 B Dr. Chien-Shiung Wu and the Law of Parity
23 A Animals with Links to the Past
23 B Determining the Age of a Fossil
24 A The Remarkable Brain
24 B How Does Memory Work?
25 A Measuring Air Pressure with Barometers
25 B Making a Barometer
附录
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