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Evidence Evaluation from the S.W.A.M Crime Scene

Evidence Evaluation from the S.W.A.M Crime Scene. CSI Agents: Alex Llamas Skyler Rabson Will Mathison Mary Neja. Physical Properties. A characteristic of matter that is either observable (qualitative) or measurable (quantitative). Examples: Weight Color Hardness Smell Temperature

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Evidence Evaluation from the S.W.A.M Crime Scene

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  1. Evidence Evaluationfrom the S.W.A.M Crime Scene CSI Agents: Alex Llamas Skyler Rabson Will Mathison Mary Neja

  2. Physical Properties A characteristic of matter that is either observable (qualitative) or measurable (quantitative). Examples: Weight Color Hardness Smell Temperature Density

  3. Chemical Properties A characteristic of a substance that describes its ability to participate in chemical reactions. Examples: Flammability Color Change Temperature Change Fizzing and Bubbling

  4. Metal Evidence Evaluation Metal 1 2.7cm long Metal 2 4.4cm long

  5. Metal Evidence Evaluation Identity of Metal 1 is : Aluminum Supporting Evidence: Aluminum is a lighter color than Metal 2 Aluminum is softer than Metal 2 Aluminum is a Non Magnetic metal Resources: Georgia Holt Science and Technology Physical Science Text Book

  6. Metal Evidence Evaluation Identity of metal 2 is steel Supporting evidence: Steel is harder than aluminum Steel is magnetic aluminum is not magnetic Resources: Georgia Holt Science and Technology Physical Science Text Book

  7. Liquid Evidence Evaluation There were three possible liquids, and each one reacted differently when it came in contact with a flame. Water Rubbing Alcohol Vinegar

  8. Liquid Evidence Evaluation Mystery Liquid: alcohol Supporting evidence: • The liquid is flammable • The liquid had the same odor as the alcohol Resources: prior experiments and the Holt Science and Technology Physical Science Text Book

  9. Powder Evidence Evaluation • There were fourdifferent powders: Baking soda, baking powder, baby powder, and corn starch Baking powder Baking soda Corn starch Baby powder Mystery powder

  10. Powder Evidence Evaluation Mystery powder: baking powder Supporting evidence: • Reacts with water, vinegar, and iodine • Bubbled when it came in contact with water and vinegar • Turned the iodine black • Resources: Knowledge from prior experiments

  11. Summary of Findings We conclude that the Metals found at the SWAMcrime scene were: aluminum, & steel The liquid was: alcohol The powder was: baking powder

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