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A SCIENTIFIC METHOD PROBLEM SOLVING KIT JANUARY 30 2001 BIOLOGY LAB Science and its methods help us to accumulate and evaluate facts and observations that provide explanations about our environment Once a problem is identified scientists can formulate hypotheses and devise experiments that will test it Scientists who are creative will be able to solve problems in many different ways The purpose of this laboratory is to become familiar with the scientific method Procedure Each group used a chemplate Brom Thymol blue indicator and seven different solutions First using the chemplate one drop of Brom Thymol blue indicator was put into cavities one five and nine A drop of unknown solution one was added to cavity one Unknown two was added to cavity five and nothing was added to cavity nine These cavities were then observed for color change Next a drop of Brom Thymol blue indicator was added to cavities two three four and six Solution one was then added to cavity two The previous procedure was then repeated with bottles two three and four to cavities three four and six respectively Chemical factors that may be responsible for the color change were noted Then based on all the information that was gathered a possible hypothesis was written Next the information found on labels for solutions five six and seven were recorded Next the hypothesis was tested by experimentation One drop of Brom Thymol Blue indicator was added to cavities ten eleven and twelve One drop of solution five was added to cavity ten one drop of solution seven to cavity eleven and one drop of solution seven to cavity twelve All the results were then recorded Results Cavity BottleFormulaPredicted ColorColor Change 11unknown 1greensame 52unknown 2purpleorange 2Sol
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