Investigatory Project

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011. The effect of sound on plants [Exp] 021. Plants in different environments (light intensity, color) [Exp] 031. The effect of nicotine, air, yeast on mold growth [Exp] 041. Factors affecting the strength of hair [Exp] 042. Factors affecting the growth of bacteria [Exp] 043. Factors affecting the growth of molds or yeast [Exp] 051. Experiment with Hydroponics (Use seedlings started from seed with three types of soil and different rates of fertilizer) [Exp] 071. The effectiveness of Antiseptics and soaps on household bacteria [Exp] 091. Comparing types of artificial light on plant growth [Exp] 101. Conditions necessary for the life of a brine shrimp [Exp] 121. Producing mutations in bacteria 122. Producing mutations in…show more content…
Can eggs withstand a greater force from one direction than from others? [Exp] 12. How strong are nylon fishing lines? [Exp] 13. How strong are plastic wraps? [Exp] 14. Which homemade airplane design flies best? [Exp*] 15. What factors affect the bounce of a dropped ball? [Exp] 16. How do compression and tension make things strong? 17. How strong is a toothpick? 18. Which type of lawn sprinkler works best? 19. Which type\size of light bulb produces the most light? 20. How can the strength of light be measured?- the effect on degradable materials 21. Which materials can be charged with static electricity? (Quick) 22. Which battery lasts the longest?- How can power be increased? [Exp] 23. What affects light reflection?- refraction and diffraction of light? 24. Spectrum and color production- prisms 25. How is sound produced? What affects the pitch of sound?- What affects the volume of sound? - How would you measure the velocity of sound? 26. Electric Motors- principles and factors effecting their efficiency 27. Electric Circuits- factors affecting voltage, amperage, resistance 28. Magnets and electromagnets- What affects the strength of an electromagnet? [Exp*] 29. Buzzers and bells and alarms (electromagnets). 30. Magnet Levitation- Experiment gravity defying effects of magnetism and build a Magnetic Levitating Train 31. Radios [Exp*] 32. Internal Combustion engines 34.

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