Page 2 - 新思维科学活动用书5 样章
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Contents ontents
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Contents
How to use this book 3
1 Life cycles of flowering plants 4
1.1 Flowering and non-flowering plants 4
1.2 Pollination, fruits and seeds 8
1.3 How seeds are spread 11
1.4 Seed germination 15
2 Sound 20
2.1 How are sounds made? 20
2.2 Volume and pitch 24
2.3 Changing the volume of sound 29
2.4 Changing the pitch of sound 33
3 States and properties of matter 38
3.1 Gases 38
3.2 Properties of water 41
3.3 Evaporation and condensation 45
3.4 Solutions 49
4 The digestive system 53
4.1 Parts and functions of the digestive system 53
4.2 Balanced diets 57
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