Provides step-by-step instruction on how to research and complete a science project along with forty examples of projects completed by real students with outlines, suggested questions, and a listing of the variables tested There's plenty for you to choose from in this collection of forty terrific science project ideas from real kids, chosen by well-known children's science writer Janice VanCleave. Developing your own science project requires planning, research, and lots of hard work. Acknowledgments. Introduction. Part I: SCIENCE PROJECTS STEP-BY-STEP. Chapter 1: Keep a Log Book. Chapter 2: Select a Category. Chapter 3: Do Topic Research. Chapter 4: Do Project Research. Chapter 5: Find a Project Problem. Chapter 6: Come Up with a Project Hypothesis. Chapter 7: Design a Project Experiment. Chapter 8: Collect Raw Data. Chapter 9: Create Your Project Summaries. Chapter 10: Design Your Project Display. Chapter 11: Prepare an Oral Presentation and Plan for Your Evaluation. Part II: 40 SAMPLE PROJECTS. Project 1: What Effect Does the Physical Form of a Fertilizer Have on Plant Growth? Project 2: What Effect Does Talcum Powder Have as an Insecticide? Project 3: How Effective Are Sun Shadows for Telling Time? Project 4: How Does Earth’s Rotation Affect the Position of the “Man in the Moon”? Project 5: What Effect Does a Glucose Solution Have on the Longevity of Cut Flowers? Project 6: What Effect Does the Color of Light Have on Phototropism? Project 7: What Effect Does the Position of Artificial Light Have on Plant Growth? Project 8: How Does Exposure Time to Microwaves Affect Seed Germination? Project 9: What Effect Does the Size of a Plant’s Leaves Have on the Plant’s Transpiration Rate? Project 10: How Do Seasonal Color Changes in the Environment Affect Camouflage in Animals? Project 11: How Does the Amount of Water in a Gel Affect Its Flexibility? Project 12: What Effect Does the Type of Flour Have on the Ability of Calcium Propionate to Inhibit Bread Mold? Project 13: What Effect Does Light Have on the Rate of Planaria Regeneration? Project 14: What Effect Does Regular Physical Exercise Have on the Lungs’ Vital Capacity? Project 15: What Effect Does Gender Have on the Stroop Test Color Recognition Response Time? Project 16: How Does the Volume of Background Music Affect Short-Term Memory? Project 17: How Does Color Intensity Affect the Perceived Sweetness of Food? Project 18: What Effect Does the Type of Video Game Have on Blood Pressure? Project 19: What Effect Does Surface Area Have on the Evaporation Rate of Water? Project 20: What Effect Does Temperature Have on the Amount of Solute Needed to Prepare a Saturated Solution? Project 21: What Effect Does Surface Texture Have on Growing Crystals? Project 22: What Effect Does Temperature Have on the Thickness of Ketchup? Project 23: What Effect Does the pH of Food Have on Preventing Tarnish on Copper Pots? Project 24: What Effect Does the Concentration of a Mordant Have on the Colorfastness of a Natural Dye? Project 25: How Effective Are Homemade Barometers in Predicting Weather? Project 26: What Effect Does Humidity Have on Condensation Rate? Project 27: How Does Evaporation Affect the Salinity of Ocean Water? Project 28: What Effect Does the Type of Ground Cover Have on the Rate of Soil Erosion? Project 29: How Does the Texture of Paper Affect Its Printing Quality? Project 30: What Type of Container Increases the Shelf Life of Bread? Project 31: How Does the Degree of Stretching Affect the Ability of Plastic Food Wraps to Keep Foods Fresh? Project 32: What Effect Does Triangle Size Have on the Strength of a Truss Bridge? Project 33: How Steady Is the Moon’s Angular Speed from One Day to the Next? Project 34: How Does the Ratio of Two Dyes in a Mixture Affect Its Color? Project 35: How Does a Refrigerant’s Surface Area Affect How Well It Cools? Project 36: What Effect Does Salt Concentration Have on the Specific Heat of an Aqueous Salt Solution? Project 37: What Effect Does the Time of Day Have on Passive Solar Heating? Project 38: How Does the Size of a Vibrating Surface Affect the Pitch of Its Sound? Project 39: How Does Density Affect the Buoyancy of Objects? Project 40: How Does Mass Affect the Period of a Pendulum? Appendix A: 100 Project Ideas. Appendix B: Science Project and Reference Books. Glossary. Index.