Introduction What Is Science? The Sciences Life Science Earth Science Physical Science Meet a Scientist The 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 Practice Pages PART 1 PLANTS Part 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 Practice Pages 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 Practice Pages Part Review Experiment: Do Plants Grow toward the Light? PART 2 ANIMALS Part 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 Practice Pages Lesson 2 Before You Read Vocabulary Science Skills Science Reading Strategy: Key Sciences Using Visuals: Pie Charts Kinds of Animals Fish Amphibians Reptiles Birds Mammals Leaders in Science: Jane Goodall Review and Practice Practice Pages Part Review Experiment: What Traits Do Animals Share? Glossary Index