Science Fair Prjojects

Science Fair Project Ideas
Science Fair Project Guides

Project Idea Topics



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Plant Science Fair Project Ideas

  • What is the percentage of water in various fruits and vegetables?
  • Does music affect plant growth?
  • Compare types of artificial light on plant growth.
  • Do different colored lights affect plant growth?
  • What are the best conditions for mushroom productions/growth?
  • What happens to mushrooms grown with no light, or too much light? No moisture, or too much moisture? No fresh air?
  • Do roots of a plant always grow downward?
  • Compare different methods of cooking a potato and the sensory differences.
  • Does adding salt to a plant's water affect its health? How much salt can a plant tolerate before it dies?
  • Can plants grow without soil?
  • What type of soil is in my school yard?
  • How does the spray from mister bottle affect plant growth?
  • Does music affect plant growth?
  • Does a green plant add oxygen to its environment?
  • Compare organic pesticides to commercial pesticides.
  • What percentage of cornseeds in a package will germinate?
  • Does a plant need some darkness to grow?
  • What are the effects of chlorine on plant growth?
  • Do weed killers affect house plants?
  • How do the moon phases affect plant germination?
  • How fast do roots grow?
  • What is the effect of chlorinated water on plant growth?
  • How does the number of seeds produced by different plants compare?
  • Will frozen seeds sprout?
  • Will plants grow better in soil or water?
  • What can be done to increase the decomposing rate of plants?
  • Do plants grow bigger in soil or water?
  • How much weight can a growing plant lift?
  • Does it matter in which direction seeds are planted?
  • Do living plants give off moisture?
  • Can mushrooms be grown hydroponically?
  • Which plants and vegetables make the best dye?
  • Does the type of water affect the growth of plants?
  • Do living plants give off moisture?
  • Do living plants give off oxygen?
  • Does the amount of light affect the growth of plants?
  • Does sugar prolong the life of cut flowers?


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