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The Student Advisory Board gave the editorial staff and design team feedback on the design of the Student Edition. We thank these students for their hard work and creative suggestions in making the 2005 edition of Glencoe Science student friendly.

Jack Andrews Addison Owen

Reynoldsburg Jr. High School Reynoldsburg, OH

Peter Arnold

Hastings Middle School Upper Arlington, OH

Emily Barbe

Perry Middle School Worthington, OH

Kirsty Bateman

Hilliard Heritage Middle School Hilliard, OH

Andre Brown

Spanish Emersion Academy Columbus, OH

Chris Dundon

Heritage Middle School Westerville, OH

Ryan Manafee

Monroe Middle School Columbus, OH

Addison Owen

Davis Middle School Dublin, OH

Teriana Patrick

Eastmoor Middle School Columbus, OH

Ashley Ruz

Karrer Middle School Dublin, OH

Hilliard Heritage Middle School

The Glencoe middle school science Student Advisory Board taking a timeout at COSI, a science museum in Columbus, Ohio.

Aaron Haupt Photography

Contents

Nature of Science: Conservation and Native Americans—2

Interactions of Life—6

Section 1 Living Earth 8

Section 2 Populations 12

Section 3 Interactions Within Communities 20

Lab Feeding Habits of Planaria 25

Lab: Design Your Own

Population Growth in Fruit Flies 26

The Nonliving Environment—34

Section 1 Abiotic Factors 36

Lab Humus Farm 43

Section 2 Cycles in Nature 44

Section 3 Energy Flow 50

Lab Where does the mass of a plant come from? 54

In each chapter, look for these opportunities for review and assessment:

• Reading Checks

• Caption Questions

• Section Review

• Chapter Study Guide

• Chapter Review

• Standardized Test Practice

• Online practice at booke.msscience.com

Ecosystems—62

Section 1 How Ecosystems

Change 64

Section 2 Biomes 68

Lab Studying a Land

Ecosystem 76

Section 3 Aquatic Ecosystems . . . .77 Lab: Use the Internet Exploring Wetlands . . .84

Lynn M. Stone/DRK Photo

Ecology House Section

Contents

Section 1 Section 2

Section 1 Section 2

Section 3

Section 1

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