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Editore: Zhejiang Education Pub. Date :2007-08-01 version 1, 2000
ISBN 10: 7533871553ISBN 13: 9787533871550
Da: liu xing, Nanjing JiangSu, JS, Cina
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paperback. Condizione: New. Language:Chinese.Pages Number: 65 Publisher: Zhejiang Education Pub. Date :2007-08-01 version 1. Contents: Biology and Environment 1 seed germination experiment (a) (2) seed germination experiment (b) 3 4 observed the growth of mung bean sprouts the worm of choice 5 food chains and food webs 6. do an eco-bottles 7 bottles 8 ecological changes. to maintain the ecological balance of light 1 light and shadow 2 shadow of the sun 3. just how to spread the 4 light reflection 5 light and heat 6. how.