Contains forty science project ideas from real kids along with clear scientific explanations, tips for developing other projects, and 100 additional ideas for projects.

pt. I. Science projects step-by-step -- 1. Keep a log book -- 2. Select a category -- 3. Do topic research -- 4. Do project research -- 5. Find a project problem -- 6. Come up with a project hypothesis -- 7. Design a project experiment -- 8. Collect raw data -- 9. Create your project summaries -- 10. Design your project display -- 11. Prepare an oral presentation and plan for your evaluation -- pt. 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 man"? -- 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 used 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 reaction 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 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 the 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.