Getting Started: INTRODUCTION
What Is Science?
Meet a Scientist
The Sciences
Life Science
Earth Science
Physical Science
Scientific Method
Asking Questions
Making a Hypothesis
Testing the Hypothesis
Observing
Drawing Conclusions
Safety
Practicing the Scientific Method
Experiment
Science Tools
Visuals
Science Reading Strategies
Preview
Predict
Review and Practice
Apply Science Skills

Unit 1: PLANTS
Unit Concepts
Get Ready
Lesson 1
Before You Read
Vocabulary
Science Skills
Science Reading Strategy: Main Idea and Details
Using Visuals: Diagrams
What Is a Plant?
Parts of a Plant
Roots
Stems
Leaves
Exploring: Plants in Different Places
Flowers
Review and Practice
Lesson 2
Before You Read
Vocabulary
Science Skills
Science Reading Strategy: Compare and Contrast
Using Visuals: Cycle Diagrams
How Plants Work
Photosynthesis
Making New Plants
Leaders in Science: George Washington Carver
The Plant Life Cycle
Review and Practice
Unit Review
Experiment: Do Plants Grow toward the Light?

Unit 2: ANIMALS
Unit Concepts
Get Ready
Lesson 1
Before You Read
Vocabulary
Science Skills
  Science Reading Strategy: Use What You Know
Using Visuals: Photographs
What Is an Animal?
What Animals Need
Exploring: Different Birds, Different Beaks
Animal Adaptations
Review and Practice
Lesson 2
Before You Read
Vocabulary
Science Skills
Science Reading Strategy: Key Sentences
Using Visuals: Pie Charts
Invertebrates and Vertebrates
Fishes
Amphibians
Reptiles
Birds
Mammals
Leaders in Science: Jane Goodall
Review and Practice
Unit Review
Experiment: What Traits Do Animals Share?

 
Unit 3: ROCKS AND MINERALS
Unit Concepts
Get Ready
Lesson 1
Before You Read
Vocabulary
Science Skills
Science Reading Strategy: Ask Questions
Using Visuals: Sectional Diagrams
What Are Rocks and Minerals?
Igneous Rock
Sedimentary Rock
Metamorphic Rock
Exploring: The Rock Cycle
Review and Practice
Lesson 2
Before You Read
Vocabulary
Science Skills
Science Reading Strategy: Cause and Effect
Using Visuals: Photo Sequences
The Earth's Changing Surface
Weathering
Erosion
Earthquakes
Volcanoes
Leaders in Science: David A. Johnston
Review and Practice
Unit Review
Experiment: How Do Rocks Change?

Unit 4: PLANETS AND STARS
Unit Concepts
Get Ready
Lesson 1
Before You Read
Vocabulary
Science Skills
Science Reading Strategy: Reread
Using Visuals: Illustrations
The Solar System
The Inner Planets
The Outer Planets
Asteroids and Comets
Exploring: An Asteroid Changes Earth
Review and Practice
Lesson 2
Before You Read
Vocabulary
Science Skills
Science Reading Strategy: Visualize
Using Visuals: Deep Space Photos
Beyond the Solar System
Constellations
Star Facts
Leaders in Science: Edwin Hubble
Review and Practice
Unit Review
Experiment: How Do You Make a Scale Model?

Unit 5: MATTER
Unit Concepts
Get Ready
Lesson 1
Before You Read
Vocabulary
Science Skills
Science Reading Strategy: Facts and Examples
Using Visuals: Micrographs
What Is Matter?
Properties
Mass
Volume
Exploring: Measurement in History
Density
Review and Practice
Lesson 2
Before You Read
Vocabulary
Science Skills  
Science Reading Strategy: Idea Maps  
Using Visuals: States of Matter Illustrations  
States of Matter  
Solids
Liquids
Gases
Changing States of Matter
Leaders in Science: Anders Celsius
Physical and Chemical Changes
Review and Practice
Unit Review
Experiment: How Can You Observe Density?

Unit 6: SOUND AND LIGHT
Unit Concepts
Get Ready
Lesson 1
Before You Read
Vocabulary
Science Skills
Science Reading Strategy: Act It Out
  Using Visuals: Charts
Sound
Sound Waves
Echoes
Pitch and Frequency
Volume
Exploring: Animals and Frequencies
Sound and Matter
Review and Practice
Lesson 2
Before You Read
Vocabulary
Science Skills
Science Reading Strategy: Draw a Picture
Using Visuals: Wave Diagrams
Light
Reflection
Transparency
Colors of Light
Colors of Objects
Refraction
Prisms
Leaders in Science: Thomas Edison
Review and Practice
Unit Review
Experiment: What Factors Affect Light?
Glossary
Index