Page 3 - 新思维科学活动用书2 样章
P. 3
Contents
4 Humans and animals grow 46
4.1 Comparing animals 46
4.2 Growing 50
4.3 Inheriting characteristics 53
4.4 Keeping healthy 55
4.5 Teeth 59
5 Light 61
5.1 Light sources 61
5.2 Darkness 64
5.3 The Sun appears to move! 67
6 Electricity 70
6.1 Where do we use electricity? 70
6.2 Keep safe with electricity 73
6.3 Making circuits 77
Acknowledgements 83
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