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Ecosystem Science Fair Projects, Using the Scientific Method
Pam Walker
Elaine Wood
出版
Enslow Publishers, Inc.
, 2010-01-16
主題
Juvenile Nonfiction / Science & Nature / Biology
ISBN
1464500819
9781464500817
URL
http://books.google.com.hk/books?id=zRiDDwAAQBAJ&hl=&source=gbs_api
EBook
SAMPLE
註釋
How do cool temperatures affect the activity of a fish? Do earthworms prefer to live in light or darkness? Do weeds interfere with the growth of other plants? Readers will find the answers by doing the fun and simple experiments in this book. Many ideas for science fair projects are also included.