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...These are examples of science fair project topics that you should avoid to why any topic boils down a simple preference or taste such experiments do not involve the kinds numerical comparison for example which tastes better coke measurements want in they pepsi more survey than an experiment projects only have scientific validity if investigator most consumer product testing is best type fully understands behind works this includes comparisons popcorn bubblegum makeup and applies understanding while many detergents cleaning products paper towels easy use them often at level graduate student college requires people recall things did data tends be unreliable past effect colored light on plants several almost every can creative music talking difficult measure running video games anything result either obvious heart beats faster when blood pressure run with proper controls color memory emotion mood strength highly subjective etcetera will extremely without measurement cannot make repeat giv...