csi agents: alex llamas skyler rabson will mathison mary neja
TRANSCRIPT
Evidence Evaluation from the A. West Crime Scene
Evidence Evaluationfrom the S.W.A.M Crime SceneCSI Agents: Alex LlamasSkyler RabsonWill MathisonMary Neja
Physical PropertiesA characteristic of matter that is either observable (qualitative) or measurable (quantitative).Examples: WeightColorHardnessSmellTemperatureDensityChemical PropertiesA characteristic of a substance that describes its ability to participate in chemical reactions.Examples:FlammabilityColor ChangeTemperature ChangeFizzing and Bubbling
Metal Evidence EvaluationMetal 1 2.7cm long
Metal 24.4cm long Metal Evidence Evaluation
Identity of Metal 1 is : Aluminum Supporting Evidence: Aluminum is a lighter color than Metal 2Aluminum is softer than Metal 2Aluminum is a Non Magnetic metal
Resources: Georgia Holt Science and Technology Physical Science Text Book
Metal Evidence Evaluation
Identity of metal 2 is steelSupporting evidence:Steel is harder than aluminumSteel is magnetic aluminum is not magnetic
Resources: Georgia Holt Science and Technology Physical Science Text Book
Liquid Evidence EvaluationThere were three possible liquids, and each one reacted differently when it came in contact with a flame. Water Rubbing Alcohol
Vinegar
Liquid Evidence EvaluationMystery Liquid: alcoholSupporting evidence: The liquid is flammable
The liquid had the same odor as the alcoholResources: prior experiments and the Holt Science and Technology Physical Science Text Book
Powder Evidence EvaluationThere were four different powders: Baking soda, baking powder, baby powder, and corn starch
Baking powderBaking sodaCorn starchBaby powderMystery powderPowder Evidence EvaluationMystery powder: baking powderSupporting evidence:Reacts with water, vinegar, and iodineBubbled when it came in contact with water and vinegarTurned the iodine black
Resources: Knowledge from prior experiments10Summary of FindingsWe conclude that the Metals found at the SWAM crime scene were: aluminum, & steel
The liquid was: alcohol
The powder was: baking powder