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Science Fair Ideas for Physical Science

Are you a Physical Science student looking for a Science Fair topic? Here is a list of projects that may inspire your own questions:

  • How many folds (& what shape) will make a paper airplane go the furthest?
  • Which fruits give off the most energy?
  • Which metal (jewelry) tarnishes faster?
  • How does the type of container affect the rate of heating/cooling of its contents?
  • What are the effects of temperature on viscosity of oil?
  • Which types of plants and vegetables make the best dye?
  • What is the best method, other than heat, to melt ice?
  • How different substances and compounds dissolve in different liquids and what they dissolve in best
  • Which antacid works best?
  • What's the best solvent for separating out the elements of purple, red, and green markers, or of instant drink mix?
  • Which substances create rust on different metals?
  • What is the difference between sliding and static friction?
  • Does the color of a house or roof have an affect on the solar energy reflected or absorbed?
  • What is the pH of different types of water?
  • How fast do different fabrics burn?
  • What affects does salt have on the melting and boiling point of water?
  • Do white candles burn faster than color candles? Why or why not?
  • How does temperature affect the speed of a reaction?
  • How fast will ice melt on different surfaces?
  • How can surface tension of water be affected by soap?
  • How long will it take for a kettle boiling to shoot a cork off?
  • How can pulleys be used to most efficiently lift 100 lbs.?
  • Which toothpaste whitens teeth more?
  • How can different substances be separated from a mixture?
  • How do differences in surfaces affect the adhesion of tape?
  • How does the tension in a spring affect the distance and velocity of an object?
  • Can eggs withstand a greater force from one direction than another?
  • Which kinds of materials burn fastest and why?
  • What color light shines the brightest through fog?
  • How does the weight of the ball affect its distance when thrown?
  • Which household substances make the best lubricants?
  • Which brand of battery lasts the longest?
  • What materials conduct static electricity the best?
  • Can magnets be used to levitate a model train?
  • In which liquid does AlkaSeltzer dissolve faster?

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