MASSACHUSETTS GRADE 6 - …assets.pearsonschool.com/asset_mgr/versions/8C533B3BBA20595CD66FEC...• Putting the Puzzle Together • Teen Finds Fossils • Frozen Evidence Lab Enter

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Table of Contents

lesson 1Gravity and Motion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Inquiry Skill: Make Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

lesson 2Introducing the Solar System . . . . . . . . . . . . . . . . . . . . . . . . 14

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14mathdo the Converting Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Inquiry Skill: Calculate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

lesson 3Phases and Eclipses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Inquiry Skill: Interpret Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

lesson 4Star Systems and Galaxies . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Inquiry Skill: Communicate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Study Guide & Review and Assessment . . . . . . . . . . 36 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40• Mars Rovers • Elliptical, Predictable Orbits

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Enter the Lab zone for hands-on inquiry .

STEM Activity: Life on Mars

Chapter Lab Investigation:

• Directed Inquiry: Speeding Around the Sun • Open Inquiry: Speeding Around the Sun

Inquiry Warm-Ups: • What Is at the Center? • How Big Is Earth? • How Can You Safely Observe the Sun? • Ring Around the Sun • How Big Are the Planets? • Collecting Micrometeorites

Quick Labs: • Going Around in Circles • A Loopy Ellipse • Clumping Planets • Layers of the Sun • Viewing Sunspots • Characteristics of the Inner Planets • Greenhouse Effect • Density Mystery • Make a Model of Saturn • Changing Orbits

Earth and the Universe The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Why are objects in the solar system different from

each other?

Vocabulary Skill: Word Origins . . . . . . . . . . . . . . . . . . . . .4Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5STEM Activity: Life on Mars . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Go online for engaging videos, interactivities, and virtual labs.

MASSACHUSETTS GRADE 6

Table of Contents •





Table of Contents

lesson 1 Fossils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Inquiry Skill: Make Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

lesson 2 The Relative Age of Rocks . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Inquiry Skill: Communicate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

lesson 3 Radioactive Dating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Inquiry Skill: Classify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

lesson 4 The Geologic Time Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Inquiry Skill: Make Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

lesson 5 Early Earth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Inquiry Skill: Communicate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

lesson 6 Eras of Earth’s History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Inquiry Skill: Classify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Study Guide & Review and Assessment . . . . . . . . . . 92 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98• Putting the Puzzle Together • Teen Finds Fossils • Frozen Evidence

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Scenario Investigation: Goodbye, Columbus

A Trip Through Geologic Time The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 How do scientists study Earth’s past?

Vocabulary Skill: Prefixes . . . . . . . . . . . . . . . . . . . . . . . . . 44Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Scenario Investigation: Goodbye, Columbus . . . . . . . . . 46

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Chapter Lab Investigation: • Directed Inquiry: Exploring Geologic Time Through Core Samples • Open Inquiry: Exploring Geologic Time Through Core Samples

Inquiry Warm-Ups: • What’s In a Rock? • Which Layer Is the Oldest? • How Long Till It’s Gone? • This Is Your Life! • How Could Planet Earth Form in Space? • Dividing History

Quick Labs: • Sweet Fossils • Modeling Trace Fossils • Modeling the Fossil Record • How Did It Form? • The Dating Game • How Old Is It? • Going Back in Time • Learning From Fossils • Graphing the Fossil Record • Modeling an Asteroid Impact • Cenozoic Timeline


lesson 1Drifting Continents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Inquiry Skill: Infer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

lesson 2Sea-Floor Spreading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Inquiry Skill: Develop Hypotheses . . . . . . . . . . . . . . . . . . . . . . . 115

lesson 3The Theory of Plate Tectonics . . . . . . . . . . . . . . . . . . . . . .116

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 mathdo the Calculate the Rate of Plate Movement . . . . . . . . 116

Inquiry Skill: Calculate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Study Guide & Review and Assessment . . . . . . . . .120 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124• Alvin 2.0: An Extreme Makeover • An Ocean Is Born

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Scenario Investigation: Flight 7084 to Barcelona

Chapter Lab Investigation:

• Directed Inquiry: Modeling Sea-Floor Spreading • Open Inquiry: Modeling Sea-Floor Spreading

Inquiry Warm-Ups: • How Are Earth’s Continents Linked Together? • What Is the Effect of a Change in Density? • Plate Interactions

Quick Labs: • Moving the Continents • Mid-Ocean Ridges • Reversing Poles • Mantle Convection Currents

Plate Tectonics The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 How do moving plates change Earth’s crust?

Vocabulary Skill: Use Prefixes . . . . . . . . . . . . . . . . . . . . 102Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Scenario Investigation: Flight 7084 to Barcelona . . . 104


CHAPTER

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Table of Contents

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lesson 1What Is Life? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 Inquiry Skill: Control Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

lesson 2Classifying Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136mathdo the Aristotle and Classification . . . . . . . . . . . . . . . . . . . 137

Inquiry Skill: Observe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

lesson 3Domains and Kingdoms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 Inquiry Skill: Classify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

lesson 4Evolution and Classification . . . . . . . . . . . . . . . . . . . . . . . .150

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Inquiry Skill: Infer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Study Guide & Review and Assessment . . . . . . . . .154 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .158• A Recipe for Success • Are You Going to Eat That?

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Scenario Investigation: Mom’s Car Must Be Alive

Chapter Lab Investigation: • Directed Inquiry: Please Pass the Bread • Open Inquiry: Please Pass the Bread

Inquiry Warm-Ups: • Is It Living or Nonliving? • Can You Organize a Junk Drawer? • What Organism Goes Where? • Observing Similarities

Quick Labs: • React! • Compare Broth Samples • Classifying Seeds • Make a Classification Chart • Living Mysteries • Staining Leaves • Common Ancestors

Introduction to Living Things The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 How are living things alike yet different?

Vocabulary Skill: Greek Word Origins . . . . . . . . . . . 128Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129Scenario Investigation: Mom’s Car Must Be Alive

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Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157Go online for engaging videos, interactivities, and virtual labs.

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lesson 1Discovering Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .166

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166 Inquiry Skill: Measure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

lesson 2Looking Inside Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176 Inquiry Skill: Make Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

lesson 3Chemical Compounds in Cells . . . . . . . . . . . . . . . . . . . . .182

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182mathdo the Read and Interpret a Bar Graph . . . . . . . . . . . . . 186

Inquiry Skill: Draw Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . 186

lesson 4The Cell in Its Environment . . . . . . . . . . . . . . . . . . . . . . . .188

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 Inquiry Skill: Predict . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

Study Guide & Review and Assessment . . . . . . . .194 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196

Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .198• Electron Eyes • The Genographic Project

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Scenario Investigation: The Cell Game

Chapter Lab Investigation: • Directed Inquiry: Design and Build a Microscope • Open Inquiry: Design and Build a Microscope

Inquiry Warm-Ups: • What Can You See? • How Large Are Cells? • Detecting Starch • Diffusion in Action

Quick Labs: • Comparing Cells • Observing Cells • Gelatin Cell Model • Tissues, Organs, Systems • What Is a Compound? • What’s That Taste? • Effect of Concentration on Diffusion

Introduction to Cells The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 What are cells made of?

Vocabulary Skill: Prefixes . . . . . . . . . . . . . . . . . . . . . . . . 162Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163Scenario Investigation: The Cell Game

CHAPTER

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Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197







Table of Contents

lesson 1Body Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 Inquiry Skill: Make Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210

lesson 2System Interactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .216

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217 Inquiry Skill: Develop Hypotheses . . . . . . . . . . . . . . . . . . . . . . . 220

lesson 3Homeostasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .226

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227 Inquiry Skill: Communicate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

lesson 4The Skeletal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .236


lesson 5The Muscular System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .242

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243 Inquiry Skill: Infer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248

lesson 6The Skin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .252

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258 Inquiry Skill: Observe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Study Guide & Review and Assessment . . . . . . . . .262 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264

Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .266• On Pins and Needles • From One Cell—Many

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Scenario Investigation: Working Together Is the Key

Chapter Lab Investigation: • Directed Inquiry: A Look Beneath the Skin • Open Inquiry: A Look Beneath the Skin

Inquiry Warm-Ups: • How Is Your Body Organized? • How Does Your Body Respond? • Out of Balance • Hard as a Rock? • How Do Muscles Work? • What Can You Observe About Skin?

Quick Labs: • Observing Cells and Tissues • Working Together, Act I • Working Together, Act II • Working to Maintain Balance • The Skeleton • Observing Joints • Soft Bones? • Observing Muscle Tissue • Modeling How Skeletal Muscles Work • Sweaty Skin

Introduction to the Human Body The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 How does your body work?

Vocabulary Skill: Suffixes . . . . . . . . . . . . . . . . . . . . . . . . 202Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203Scenario Investigation: Working TogetherIs the Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204



CHAPTER

6

lesson 1 Describing Matter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .276

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276 Inquiry Skill: Classify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

lesson 2 Classifying Matter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .282


lesson 3 Measuring Matter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .284

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284 Inquiry Skill: Calculate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286

lesson 4 Changes in Matter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .292

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292 Inquiry Skill: Draw Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . 297

mathdo the Analyzing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299



Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .304• Long Ago in a Faraway Land . . . • An Antiuniverse?

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STEM Activity: Crystal Clear

Chapter Lab Investigation: • Directed Inquiry: Making Sense of Density • Open Inquiry: Making Sense of Density

Inquiry Warm-Ups: • How Do You Describe Matter? • What Is a Mixture? • Which Has More Mass? • Is a New Substance Formed?

Quick Labs: • Observing Physical Properties • Modeling Atoms and Molecules • Separating Mixtures • Calculating Volume • What Is a Physical Change? • Demonstrating Tarnishing • Where Was the Energy?

Introduction to Matter The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270 How is matter described?

Vocabulary Skill: Prefixes . . . . . . . . . . . . . . . . . . . . . . . . 272Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273STEM Activity: Crystal Clear . . . . . . . . . . . . . . . . . . . . . . . . 274

CHAPTER

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Table of Contents

lesson 1What Are Waves? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .312

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312 Inquiry Skill: Predict . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316

lesson 2Properties of Waves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .318


mathdo the Calculate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

lesson 3Interactions of Waves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .324

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324 Inquiry Skill: Observe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327



Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .336• Wall of Water • An Operatic Superpower

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Scenario Investigation: Rogue Wave

Chapter Lab Investigation: • Directed Inquiry: Making Waves • Open Inquiry: Making Waves

Inquiry Warm-Ups: • What Are Waves? • What Do Waves Look Like? • How Does a Ball Bounce?

Quick Labs: • What Causes Mechanical Waves? • Three Types of Waves • Properties of Waves • What Affects the Speed of a Wave? • Wave Interference • Standing Waves

Characteristics of Waves The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306 What are the properties of waves?

Vocabulary Skill: Identify Multiple Meanings . . . . 306Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309Scenario Investigation: Rogue Wave . . . . . . . . . . . . . . . 310

CHAPTER

8


lesson 1The Nature of Electromagnetic Waves . . . . . . . . . . .344


lesson 2Waves of the Electromagnetic Spectrum . . . . . . . .348

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348 Inquiry Skill: Communicate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355

lesson 3Wireless Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . .356

Inquiry Skill: Interpret Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357mathdo the Analyzing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357



Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .368• Channel Surfin’ on an Infrared Wave • Puny Power Plants

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Scenario Investigation: Catching the Waves

Chapter Lab Investigation: • Directed Inquiry: Build a Crystal Radio • Open Inquiry: Build a Crystal Radio

Inquiry Warm-Ups: • How Fast Are Electromagnetic Waves? • What Is White Light? • How Can Waves Change?

Quick Labs: • What Is an Electromagnetic Wave Made Of? • Waves or Particles? • Differences Between Waves • Parts of the Electromagnetic Spectrum • How Cell Phones Work • How Does GPS Work?

Electromagnetic Waves The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338 What kinds of waves make up the

electromagnetic spectrum?

Vocabulary Skill: Greek Word Origins . . . . . . . . . . . 340Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341Scenario Investigation: Catching the Waves . . . . . . . . 342

CHAPTER

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Table of Contents

lesson 1Light and Color . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .376

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376 Inquiry Skill: Predict . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382

lesson 2Reflection and Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 384


lesson 3Refraction and Lenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390 Inquiry Skill: Interpret Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392

mathdo the Analyzing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394

lesson 4Seeing Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .398

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398 Inquiry Skill: Observe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 399

lesson 5Using Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .402

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402 Inquiry Skill: Infer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403

Study Guide & Review and Assessment . . . . . . 406 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 406 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408

Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .410• Seeing Double • Hiding in Plain Sight

Labzone


STEM Activity: Optical Security

Chapter Lab Investigation: • Directed Inquiry: Changing Colors • Open Inquiry: Changing Colors

Inquiry Warm-Ups: • How Do Colors Mix? • How Does Your Reflection Wink? • How Can You Make an Image Appear? • Can You See Everything With One Eye? • How Does a Pinhole Camera Work?

Quick Labs: • Developing Hypotheses • Observing • Mirror Images • Bent Pencil • Looking at Images • True Colors • What a View!

Light The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370 How does light interact with matter?

Vocabulary Skill: Use Prefixes . . . . . . . . . . . . . . . . . . . . 372Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373STEM Activity: Optical Security

CHAPTER

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. . . . . . . . . . . . . . . . . . . . 374

lesson 1 The Skills of Science . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .418

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418 Inquiry Skill: Interpret Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420

lesson 2 Scientific Thinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .422


lesson 3 Answering Scientific Questions . . . . . . . . . . . . . . . . . . . .430

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 430 Inquiry Skill: Control Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . 433

mathdo the Analyzing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439


Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .444• Sandy Habitats • Healing with Magnetism?

Labzone


Scenario Investigation: This Isn’t Science!

Chapter Lab Investigation: • Directed Inquiry: Changing Pitch • Open Inquiry: Changing Pitch

Inquiry Warm-Ups: • Exploring Science • How to Think Scientifically • Doing Science Is Asking Questions

Quick Labs: • Practicing Science Skills • Exploring Scientific Thinking • Using Scientific Reasoning • Scientific Discovery • Making a Hypothesis • Theory or Not?

What Is Science? The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412 What does it mean to think like a scientist?

Vocabulary Skill: Identify Related Word Forms . . 414Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 415Scenario Investigation: This Isn’t Science!

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Science, Engineering, and Technology Skills Handbook







Table of Contents

lesson 1 Measurement in Science . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .452

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 452mathdo the Calculating Density . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458

Inquiry Skill: Predict . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458

lesson 2 Math in Science . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .462

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 462mathdo the Estimation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463

Inquiry Skill: Calculate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463mathdo the Percent Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 466

lesson 3 Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .470

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470 Inquiry Skill: Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 475

lesson 4 Using Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .476

Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 476 Inquiry Skill: Classify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 478

mathdo the Interpret Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 483 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485

lesson 5 Safety in the Science Laboratory . . . . . . . . . . . . . . . . . .486



Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .496

• Bakelite: Molding the Future • Caffeine Causes Hallucinations

English/Spanish Glossary, Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 498

Labzone


STEM Activity: Out of the Corner of Your Eye

Chapter Lab Investigation: • Directed Inquiry: Super Models • Open Inquiry: Super Models

Inquiry Warm-Ups: • Taking Measurements • Making Models • Picturing Information • Models and Science • Is Science Safe?

Quick Labs: • Measurement Systems • Measuring Volume in Metric • Understanding Significant Figures • Math Tools in Science • Making Graphs • Graphs and Predictions • Systems of Science • Models of Natural Systems • Be Prepared to Be Safe in the Lab. • In Case of an Emergency

The Tools of Science The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 446 What tools do scientists use to understand the

natural world?

Vocabulary Skill: Identify Multiple Meanings . . . . 448Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449STEM Activity: Out of the Corner of Your Eye

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Documents

MASSACHUSETTS GRADE 6 - …assets.pearsonschool.com/asset_mgr/versions/8C533B3BBA20595CD66FEC...• Putting the Puzzle Together • Teen Finds Fossils • Frozen Evidence Lab Enter