Ace your plant science project : great science fair ideas

How do different types of soil affect germination? How do light and dark affect leaves? Can you tell how old a tree is? Young scientists will explore structures, development, and life cycles of plants and interactions of plants with their environment? Readers will learn the answers to these questions and more with the fun life science experiments in this book. Following the scientific method, readers will be able to use many of the science fair project ideas for their own science fair project.

Author Notes

Robert Gardner is an award-winning author of science books for young people. He is a retired high school teacher of physics, chemistry, and physical science. Phyllis J. Perry is the author of more than two dozen books for children and teachers.

Introduction	p. 5
The Scientific Method	p. 6
Science Fairs	p. 8
Safety First	p. 9
Chapter 1 Seeds and Germination	p. 11
1.1 Watching Seeds Germinate	p. 14
1.2 What Factors Affect Germination?	p. 16
1.3 Are Cotyledons Needed for Plant Growth?	p. 18
1.4 How Does Soil Affect Germination?	p. 22
1.5 How Does a Turntable Affect Growing Grass?	p. 23
1.6 Growing a Dandelion Plant From Seed	p. 25
Chapter 2 Leaves	p. 29
2.1 How Does Light Affect Leaves?	p. 30
2.2 Leaves and Veins	p. 31
2.3 Testing Leaves for Starch	p. 34
2.4 Do Plants Produce Carbon Dioxide?	p. 37
2.5 How Does Darkness Affect Plants?	p. 40
2.6 Using Chromatography to Test for Plant Pigments	p. 41
2.7 What Is Transpiration?	p. 43
2.8 What Conditions Affect Transpiration?	p. 46
Chapter 3 Stems, Roots, and Buds	p. 51
3.1 Stems, Gravity, and Light	p. 52
3.2 How Do Stems Transport Substances?	p. 56
3.3 Where Does Growth Occur on a Stem?	p. 59
3.4 Where Does Growth Occur on a Root?	p. 61
3.5 How Does Removing the Tip Affect the Root?	p. 64
3.6 Twigs and Buds	p. 66
Chapter 4 Plant Reproduction	p. 70
4.1 Flower Dissection	p. 74
4.2 Pollen Grains	p. 78
4.3 Seeds of Flowering Plants and Cone-Bearing Plants	p. 80
Chapter 5 Trees?	p. 83
5.1 How Big Is That Tree?	p. 90
5.2 How Old Was That Tree?	p. 95
5.3 How Many Leaves Are on a Tree?	p. 98
5.4 How Much Surface Area Does a Leaf Have?	p. 99
5.5 Trees and Their Locations	p. 100
Further Reading and Internet Addresses	p. 101
Index	p. 102

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