Page 2 - 新思维科学活动用书9 样章
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Contents
Contents
How to use this book 3
1 Photosynthesis and the carbon cycle 4
1.1 Photosynthesis 4
1.2 More about photosynthesis 11
1.3 The carbon cycle 19
1.4 Climate change 22
2 Properties of materials 26
2.1 Atomic structure and the Periodic Table 26
2.2 Trends in groups within the Periodic Table 30
2.3 Why elements react to form compounds 36
2.4 Simple and giant structures 41
3 Forces and energy 46
3.1 Density 46
3.2 Heat and temperature 50
3.3 Conservation of energy 54
3.4 Moving from hot to cold 59
3.5 Ways of transferring thermal energy 62
3.6 Cooling by evaporation 65
4 Maintaining life 70
4.1 Plants and water 70
4.2 Transpiration 76
4.3 Excretion in humans 80
4.4 Keeping a fetus healthy 81
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