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Table of Contents
NEW JERSEY GRADE 6
lesson 1What Is a Plant? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Inquiry Skill: Predict . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
lesson 2Classifying Plants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Inquiry Skill: Communicate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
lesson 3Plant Structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Inquiry Skill: Observe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
lesson 4Plant Reproduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
lesson 5 Plant Responses and Growth . . . . . . . . . . . . . . . . . . . . . . . . . 44
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Inquiry Skill: Draw Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
lesson 6Plants in Everyday Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Inquiry Skill: Pose Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Study Guide & Review and Assessment . . . . . . . . . . 54 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60• Grains of Evidence • Planting Roots in Outer Space
Labzone
Enter the Lab zone for hands-on inquiry .
Scenario Investigation: Plants in Space
Chapter Lab Investigation: • Directed Inquiry: Investigating Stomata • Open Inquiry: Investigating Stomata
Inquiry Warm-Ups: • What Do Leaves Reveal About Plants? • Will Mosses Absorb Water? • Which Plant Part Is It? • Make the Pollen Stick • Can a Plant Respond To Touch? • Feeding the World
Quick Labs: • Algae and Other Plants • Local Plant Diversity • Masses of Mosses • Examining a Fern • Common Characteristics • The In-Seed Story • Modeling Flowers • Plant Life Cycles • Where Are the Seeds? • Watching Roots Grow • Seasonal Changes • Everyday Plants
Plants The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 How do you know a plant when you see it?
Vocabulary Skill: Greek Word Origins . . . . . . . . . . . . . .4Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Scenario Investigation: Plants in Space
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1
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. . . . . . . . . . . . . .6
Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
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lesson 1Skeletons and Muscles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Inquiry Skill: Infer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
lesson 2The Nervous System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Inquiry Skill: Draw Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
lesson 3Animal Movement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80mathdo the Interpret Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Inquiry Skill: Calculate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
lesson 4Obtaining Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Inquiry Skill: Classify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
lesson 5Animal Reproduction and Fertilization . . . . . . . . . . 94
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94mathdo the Interpret Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Inquiry Skill: Calculate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
lesson 6Development and Growth . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102mathdo the Interpret Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Inquiry Skill: Interpret Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Study Guide & Review and Assessment . . . . . . . . .112 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116• Special Delivery: Seahorse Reproduction • “Feet” of Engineering
Labzone
Enter the Lab zone for hands-on inquiry .
Scenario Investigation: Mealworm Migration
Chapter Lab Investigation: • Directed Inquiry: A Snail’s Pace • Open Inquiry: A Snail’s Pace
Inquiry Warm-Ups: • Will It Bend and Move? • Sending Signals • Hydra Doing? • How Do Snakes Feed? • Making More • “Eggs-amination”
Quick Labs: • Comparing Bone and Cartilage • What Do Muscles Do? • Design a Nervous System • Compare Nervous Systems • Webbing Along • Planarian Feeding Behavior • Comparing Respiratory Systems • Comparing Circulatory Systems • Types of Reproduction • Types of Fertilization “Eggs-tra” Production • Cycles of Life • To Care or Not to Care
Animal Life Processes The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 How do animals move?
Vocabulary Skill: Identify Multiple Meanings . . . . . 64Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65Scenario Investigation: Mealworm Migration
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. . . . . . . . 66
Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
lesson 1Living Things and the Environment . . . . . . . . . . . . . .122
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 Inquiry Skill: Draw Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . 125 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
lesson 2Populations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128mathdo the Draw a Double Bar Graph . . . . . . . . . . . . . . . . . . . . 129
Inquiry Skill: Infer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
lesson 3Interactions Among Living Things . . . . . . . . . . . . . . . .136
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136mathdo the Interpret a Line Graph . . . . . . . . . . . . . . . . . . . . . . . . 142
Inquiry Skill: Classify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Study Guide & Review and Assessment . . . . . . . . .146 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150• Ecologist • Binocular Boot Camp • Bird Radio
Labzone
Enter the Lab zone for hands-on inquiry .
Scenario Investigation: That Can’t Possibly Work!
Chapter Lab Investigation:
• Directed Inquiry: World in a Bottle • Open Inquiry: World in a Bottle
Inquiry Warm-Ups: • What’s in the Scene? • Populations • Can You Hide a Butterfly? • How Communities Change
Quick Labs: • Organisms and Their Habitats • Organizing an Ecosystem • Growing and Shrinking • Elbow Room • Adaptations for Survival • Competition and Predation • Type of Symbiosis
Populations and Communities The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 How do living things affect one another?
Vocabulary Skill: Latin Word Origins . . . . . . . . . . . . . 118Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1119Scenario Investigation: That Can’t Possibly Work! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
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Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
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lesson 1Energy Flow in Ecosystems . . . . . . . . . . . . . . . . . . . . . . . . . .160
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 Inquiry Skill: Classify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
mathdo the Calculate Energy Availability . . . . . . . . . . . . . . . . . 167
lesson 2Cycles of Matter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .170
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Inquiry Skill: Infer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
lesson 3Biomes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .176
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179mathdo the Interpret a Line Graph . . . . . . . . . . . . . . . . . . . . . . . . 180
Inquiry Skill: Draw Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . 180
lesson 4Aquatic Ecosystems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .182
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187 Inquiry Skill: Communicate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Study Guide & Review and Assessment . . . . . . . . .188 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192• A Lake Can’t Last Forever • Trees: Environmental Factories
Labzone
Enter the Lab zone for hands-on inquiry .
STEM Activity: River Works
Chapter Lab Investigation:
• Directed Inquiry: Ecosystem Food Chains • Open Inquiry: Ecosystem Food Chains
Inquiry Warm-Ups: • Where Did Your Dinner Come From? • Are You Part of a Cycle? • How Much Rain Is That? • Where Does It Live?
Quick Labs: • Observing Decomposition • Consequences of Human Activity • Following Water • Carbon and Oxygen Blues • Playing Nitrogen Cycle Roles • Inferring Forest Climates • Dissolved Oxygen
Ecosystems and Biomes The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 How do energy and matter move through
ecosystems?
Vocabulary Skill: Prefixes . . . . . . . . . . . . . . . . . . . . . . . . 154Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155STEM Activity: River Works
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. . . . . . . . . . . . . . . . . . . . . . . . 156
Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
lesson 1The Nature of Force . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 Inquiry Skill: Make Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
lesson 2Friction and Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210 Inquiry Skill: Design Experiments . . . . . . . . . . . . . . . . . . . . . . . . 214
lesson 3Newton’s Laws of Motion . . . . . . . . . . . . . . . . . . . . . . . . . . . .218
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218 Inquiry Skill: Infer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
mathdo the Calculate Acceleration . . . . . . . . . . . . . . . . . . . . . . . . 221 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
lesson 4Momentum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .226
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226 Inquiry Skill: Calculate . . . . . . . . . . . . . . . . . . . . . . . . .227, 228, 229
lesson 5Free Fall and Circular Motion . . . . . . . . . . . . . . . . . . . . . . .230
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 Inquiry Skill: Create Data Tables . . . . . . . . . . . . . . . . . . . . . . . . . 231
Study Guide & Review and Assessment . . . . . . . . .234 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .238• Safety Restraints • Forceful Fluids
Labzone
Forces The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194 How do objects react to forces?
Vocabulary Skill: Latin Word Origins . . . . . . . . . . . . . 196Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197STEM Activity: Sail Away . . . . . . . . . . . . . . . . . . . . . . . . . . . 198Scenario Investigation: Please Drop In . . . . . . . . . . . . . 202
CHAPTER
5
Enter the Lab zone for hands-on inquiry .
STEM Activity: Sail Away
Chapter Lab Investigation: • Directed Inquiry: Sticky Sneakers • Open Inquiry: Sticky Sneakers
Inquiry Warm-Ups: • Is the Force With You? • Observing Friction • What Changes Motion? • How Pushy Is a Straw? • What Makes an Object Move in a Circle? • Why Redesign?
Quick Labs: • What Is Force? • Modeling Unbalanced Forces • Calculating • Around and Around • Newton’s Second Law • Interpreting Illustrations • Colliding Cars • Which Lands First? • Orbiting Earth • Using Scientific Thinking • How Close Is It?
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lesson 1Electric Charge and Static Electricity . . . . . . . . . . .244
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 Inquiry Skill: Draw Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . 246
lesson 2Electric Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .248
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248 Inquiry Skill: Classify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
lesson 3Electric Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .254
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256mathdo the Calculate Resistance and Voltage . . . . . . . . . . . . 257
Inquiry Skill: Make Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
lesson 4Electric Power and Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . .262
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262 Inquiry Skill: Calculate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
mathdo the Calculate Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Study Guide & Review and Assessment . . . . . . . . .264 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267• Something for Nothing • Going Green
Labzone
Enter the Lab zone for hands-on inquiry .
Scenario Investigation: My House is Wired!
Chapter Lab Investigation: • Directed Inquiry: Build a Flashlight • Open Inquiry: Build a Flashlight
Inquiry Warm-Ups: • Can You Move a Can Without Touching It? • How Can Current Be Measured? • Do the Lights Keep Shining? • How Can You Make a Bulb Burn More Brightly?
Quick Labs: • Drawing Conclusions • Sparks Are Flying • Producing Electric Current • Conductors and Insulators • Modeling Potential Difference • Ohm’s Law • Calculating Electric Power and Energy Use • Electric Shock and Short Circuit Safety
Electricity The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240 How does an electric circuit work?
Vocabulary Skill: Latin Word Origins . . . . . . . . . . . . . 241Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Scenario Investigation: My House is Wired!
CHAPTER
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lesson 1What Is Magnetism? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .274
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274 Inquiry Skill: Infer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
lesson 2Magnetic Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .278
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278 Inquiry Skill: Observe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
mathdo the Analyze Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
lesson 3Electromagnetic Force . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .284
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284 Inquiry Skill: Predict . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
lesson 4Electricity, Magnetism, and Motion . . . . . . . . . . . . . .290
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290 Inquiry Skill: Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
mathdo the Interpret Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
lesson 5Electricity From Magnetism . . . . . . . . . . . . . . . . . . . . . . . . .296
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 Inquiry Skill: Make Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
mathdo the Calculate Ratios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
Study Guide & Review and Assessment . . . . . . . . .304 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .308• Magnetic Pictures • A Shocking Message!
Labzone
Enter the Lab zone for hands-on inquiry .
Scenario Investigation: Is the North Pole Really the South Pole?
Chapter Lab Investigation: • Directed Inquiry: Detecting Fake Coins • Open Inquiry: Detecting Fake Coins
Inquiry Warm-Ups: • Natural Magnets • Predict the Field • Electromagnetism • How Are Electricity, Magnets, and Motion Related? • Electric Current Without a Battery
Quick Labs: • Magnetic Poles • Spinning in Circles • Earth’s Magnetic Field • Electric Current and Magnetism • Magnetic Fields From Electric Current • Electromagnet • Can a Magnet Move a Wire? • How Galvanometers Work • Parts of an Electric Motor • Inducing an Electric Current • How Generators Work • How Transformers Work
Magnetism and Electromagnetism The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268 How are electricity and magnetism related?
Vocabulary Skill: Use Context to Determine Meaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271Scenario Investigation: Is the North PoleReally the South Pole? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
CHAPTER
7
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Table of Contents •
Table of Contents •
Table of Contents •
Table of Contents •
Table of Contents •
Table of Contents
lesson 1 The Air Around You . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .316
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316 Inquiry Skill: Infer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
lesson 2 Air Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .320
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320 Inquiry Skill: Develop Hypotheses . . . . . . . . . . . . . . . . . . . . . . . 322
lesson 3Layers of the Atmosphere . . . . . . . . . . . . . . . . . . . . . . . . . . .324
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324mathdo the Read Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
Inquiry Skill: Interpret Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
lesson 4Energy in Earth’s Atmosphere . . . . . . . . . . . . . . . . . . . . . .328
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328 Inquiry Skill: Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
lesson 5Heat Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .334
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334 Inquiry Skill: Infer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
lesson 6Winds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .338
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338 Inquiry Skill: Draw Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . 340 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Study Guide & Review and Assessment . . . . . . . . .342 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346
Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347
Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .348• The Aura Mission • Up, Up, and Away! • Plugging Into the Jet Stream
Labzone
The Atmosphere The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310 How does the sun’s energy affect
Earth’s atmosphere?
Vocabulary Skill: Word Origins . . . . . . . . . . . . . . . . . . 312Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313Scenario Investigation: Mile-High Baseball
CHAPTER
8
Enter the Lab zone for hands-on inquiry .
Scenario Investigation: Mile-High Baseball
Chapter Lab Investigation:
• Directed Inquiry: Heating Earth’s Surface • Open Inquiry: Heating Earth’s Surface
Inquiry Warm-Ups: • How Long Will the Candle Burn? • Does Air Have Mass? • Is Air There? • Does a Plastic Bag Trap Heat? • What Happens When Air Is Heated? • Does the Wind Turn?
Quick Labs: • Breathe In, Breathe Out • What Is the Source of Earth’s Energy? • Properties of Air • Soda Bottle Barometer • Effects of Altitude on the Atmosphere • Layers of the Atmosphere • Calculating Temperature Changes • How Does the Sun’s Energy Reach Earth? • Measuring Temperature • Temperature and Height • Build a Wind Vane • Modeling Global Wind Belts
. . . . . . . . 314
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Go online for engaging videos, interactivities, and virtual labs.
lesson 1Water in the Atmosphere . . . . . . . . . . . . . . . . . . . . . . . . . . . .356
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356 Inquiry Skill: Interpret Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359
mathdo the Calculate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359
lesson 2Clouds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .360
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360 Inquiry Skill: Predict . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
lesson 3Precipitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .366
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366 Inquiry Skill: Calculate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367
lesson 4Air Masses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .368
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368 Inquiry Skill: Classify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
lesson 5Storms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .374
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374 Inquiry Skill: Infer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381
lesson 6Predicting the Weather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .382
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382 Inquiry Skill: Predict . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387
Study Guide & Review and Assessment . . . . . . . . .390 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392
Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393
Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .394• The S’COOL Project • Tracking Hurricanes with Latitude
and Longitude
Labzone
Enter the Lab zone for hands-on inquiry .
Scenario Investigation: Predicting the Weather Is No Sport
Chapter Lab Investigation: • Directed Inquiry: Reading a Weather Map • Open Inquiry: Reading a Weather Map
Inquiry Warm-Ups: • Where Did the Water Go? • How Does Fog Form? • How Can You Make Hail? • How Do Fluids of Different Densities Move? • Can You Make a Tornado? • Predicting Weather
Quick Labs: • Water in the Air • Measuring to Find the Dew Point • How Clouds Form • Identifying Clouds • Types of Precipitation • Floods and Droughts • Tracking Air Masses • Weather Fronts • Cyclones and Anticyclones • Where Do Hurricanes Come From? • Storm Safety • Modeling Weather Satellites
Weather The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350 How do meteorologists predict the weather?
Vocabulary Skill: Prefixes . . . . . . . . . . . . . . . . . . . . . . . . 352Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353Scenario Investigation: Predicting the Weather Is No Sport
CHAPTER
9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354
Table of Contents •
Table of Contents •
Table of Contents •
Table of Contents •
Table of Contents •
Table of Contents
lesson 1The Sky From Earth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .402
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402 Inquiry Skill: Predict . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 406
lesson 2Earth in Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .408
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408 Inquiry Skill: Infer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411, 412
mathdo the Sample Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 415
lesson 3Gravity and Motion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .416
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416mathdo the Analyzing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419
Inquiry Skill: Draw Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . 419
lesson 4Phases and Eclipses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .420
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420 Inquiry Skill: Make Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 422 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425
lesson 5Tides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .426
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 426 Inquiry Skill: Observe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 429
lesson 6Earth’s Moon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .430
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 430 Inquiry Skill: Develop Hypotheses . . . . . . . . . . . . . . . . . . . . . . . 433
Study Guide & Review and Assessment . . . . . . . . .434 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 434 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 436
Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437
Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .438• Keeping Track of Time • Space Spinoffs
Enter the Lab zone for hands-on inquiry .
Scenario Investigation: Smearing Causes Seasons
Chapter Lab Investigation: • Directed Inquiry: Reasons for the Seasons • Open Inquiry: Reasons for the Seasons
Inquiry Warm-Ups: • Earth’s Sky • What Causes Day and Night? • What Factors Affect Gravity? • How Does the Moon Move? • When Is High Tide? • Why Do Craters Look Different From Each Other?
Quick Labs: • Observing the Night Sky • Watching the Skies • Sun Shadows • What’s Doing the Pulling? • Around and Around We Go • Moon Phases • Eclipses • Modeling the Moon’s Pull of Gravity • Moonwatching
Earth, Moon, and Sun The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396 How do Earth, the moon, and the sun interact?
Vocabulary Skill: Identify Multiple Meanings . . . . 398Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 399Scenario Investigation: Smearing Causes Seasons
CHAPTER
10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400
Labzone
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lesson 1Models of the Solar System . . . . . . . . . . . . . . . . . . . . . . . .448
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 448 Inquiry Skill: Make Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450
lesson 2Introducing the Solar System . . . . . . . . . . . . . . . . . . . . . . .452
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 452mathdo the Converting Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453
Inquiry Skill: Calculate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 457 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 457
lesson 3The Sun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .458
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458mathdo the Solar Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 461
Inquiry Skill: Interpret Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 461
lesson 4The Inner Planets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .464
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 464 Inquiry Skill: Communicate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 471
lesson 5The Outer Planets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .472
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 472 Inquiry Skill: Pose Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479
lesson 6Small Solar System Objects . . . . . . . . . . . . . . . . . . . . . . . .480
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480 Inquiry Skill: Classify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484
Study Guide & Review and Assessment . . . . . . . . .486 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 488
Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489
Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .490• Mars Rovers • Elliptical, Predictable Orbits
Labzone
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
The Solar System The Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440 Why are objects in the solar system different from
each other?
Vocabulary Skill: Word Origins . . . . . . . . . . . . . . . . . . 442Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443STEM Activity: Life on Mars
CHAPTER
11
. . . . . . . . . . . . . . . . . . . . . . . . 444
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12
Science, Engineering, and Technology Skills Handbook
Table of Contents •
Table of Contents •
Table of Contents •
Table of Contents •
Table of Contents •
Table of Contents
Science, Engineering, and Technology Skills Handbook
lesson 1 The Skills of Science . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .500
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 Inquiry Skill: Interpret Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504
lesson 2 Scientific Thinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .506
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 506 Inquiry Skill: Infer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 510
lesson 3 Answering Scientific Questions . . . . . . . . . . . . . . . . . . . .514
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 514 Inquiry Skill: Control Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . 517
mathdo the Analyzing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 522 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 523 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 523
Study Guide & Review and Assessment . . . . . . . . .524 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 524 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 526
Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .530• Sandy Habitats • Healing with Magnetism?
Labzone
Enter the Lab zone for hands-on inquiry .
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 492 What does it mean to think like a scientist?
Vocabulary Skill: Identify Related Word Forms . . 494Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495Scenario Investigation: This Isn’t Science!
PART
1
Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 527
. . . . . . . . 496
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Table of Contents •
Table of Contents •
Table of Contents •
Table of Contents •
Table of Contents •
Table of Contents
lesson 1 Measurement in Science . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .538
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 538mathdo the Calculating Density . . . . . . . . . . . . . . . . . . . . . . . . . . . . 544
Inquiry Skill: Predict . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 544
lesson 2 Math in Science . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .556
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 556mathdo the Estimation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 557
Inquiry Skill: Calculate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 557mathdo the Percent Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 560
lesson 3 Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .562
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 562 Inquiry Skill: Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 565
lesson 4 Using Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .566
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 566 Inquiry Skill: Classify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 568
mathdo the Interpret Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 571 Explore the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 571 Answer the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 573
lesson 5 Safety in the Science Laboratory . . . . . . . . . . . . . . . . . .574
Unlock the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 574 Inquiry Skill: Infer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 577
Study Guide & Review and Assessment . . . . . . . . .578 Review the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 578 Apply the Big Question . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 580
Science Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .584
• Bakelite: Molding the Future • Caffeine Causes Hallucinations
English/Spanish Glossary, Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 586
Labzone
Enter the Lab zone for hands-on inquiry .
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 532 What tools do scientists use to understand the
natural world?
Vocabulary Skill: Identify Multiple Meanings . . . . 534Reading Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 535STEM Activity: Out of the Corner of Your Eye
PART
2
. . . . . . . 536
Standardized Test Prep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 581
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