THE W. HoUSToN CRIME SCENE
description
Transcript of THE W. HoUSToN CRIME SCENE
![Page 1: THE W. HoUSToN CRIME SCENE](https://reader036.fdocuments.us/reader036/viewer/2022062410/568161c5550346895dd1aa5b/html5/thumbnails/1.jpg)
THE W. HOUSTON CRIME SCENE
AVI M. TED N. NICKY R.JESSICA M.
![Page 2: THE W. HoUSToN CRIME SCENE](https://reader036.fdocuments.us/reader036/viewer/2022062410/568161c5550346895dd1aa5b/html5/thumbnails/2.jpg)
PHYSICAL PROPERTIES
A physical property is a property that can be observed or measured without changing the composition of matter.
Examples: Color Hardness Malleability Viscosity Texture Odor Melting Point Etc.
![Page 3: THE W. HoUSToN CRIME SCENE](https://reader036.fdocuments.us/reader036/viewer/2022062410/568161c5550346895dd1aa5b/html5/thumbnails/3.jpg)
CHEMICAL PROPERTIES
A chemical property shows the ability for a substance to react to other substances.
Examples: Corrosion Oxidation
![Page 4: THE W. HoUSToN CRIME SCENE](https://reader036.fdocuments.us/reader036/viewer/2022062410/568161c5550346895dd1aa5b/html5/thumbnails/4.jpg)
Sample 1
Sample 2
The Metal Samples
![Page 5: THE W. HoUSToN CRIME SCENE](https://reader036.fdocuments.us/reader036/viewer/2022062410/568161c5550346895dd1aa5b/html5/thumbnails/5.jpg)
Sample 1 Evaluation
Identity of sample 1: Aluminum Supporting evidence:
Not magnetic Silver in color Density: 2.7g/mL Doesn’t oxidize quickly Conducts electricity
www.elmhurst.edu/~chm/vchembook/102aluminum.html supports this evidence
![Page 6: THE W. HoUSToN CRIME SCENE](https://reader036.fdocuments.us/reader036/viewer/2022062410/568161c5550346895dd1aa5b/html5/thumbnails/6.jpg)
Sample 2 Evaluation
Identity of sample 2: Steel Supporting Evidence
Magnetic Dark grey color Density= 7.8 g/cm3 Harder (Scratch Test) lower thermal conductivity
http://www.ndted.org/EducationResources/CommunityCollege/Materials/Physical_Chemical/PhysicalProperties.htm
Supports this evidence
![Page 7: THE W. HoUSToN CRIME SCENE](https://reader036.fdocuments.us/reader036/viewer/2022062410/568161c5550346895dd1aa5b/html5/thumbnails/7.jpg)
Mystery Powder Evaluation Identity of the mystery powder:
Baking soda Supporting Evidence
Baking soda had same reactionsBaking Powder
Baking Soda
CornStarch
Baby Powder
Mystery Powder
Water Bubbled
Fizzed Water turned yellow
Repelled water
Bubbled
Vinegar
Fizzed Fizzed Turned vinegar yellow
Repelled vinegar
Fizzed
Iodine Turned black
Absorbed Iodine
Turned black
Turned black
Turned black
![Page 8: THE W. HoUSToN CRIME SCENE](https://reader036.fdocuments.us/reader036/viewer/2022062410/568161c5550346895dd1aa5b/html5/thumbnails/8.jpg)
![Page 9: THE W. HoUSToN CRIME SCENE](https://reader036.fdocuments.us/reader036/viewer/2022062410/568161c5550346895dd1aa5b/html5/thumbnails/9.jpg)
Mystery Liquid
Identity of the mystery liquid: Rubbing Alcohol Supporting Evidence:
Flammable Smell Cold Clear Very high viscosity
![Page 10: THE W. HoUSToN CRIME SCENE](https://reader036.fdocuments.us/reader036/viewer/2022062410/568161c5550346895dd1aa5b/html5/thumbnails/10.jpg)
Water Rubbing Alcohol
Mystery Liquid
![Page 11: THE W. HoUSToN CRIME SCENE](https://reader036.fdocuments.us/reader036/viewer/2022062410/568161c5550346895dd1aa5b/html5/thumbnails/11.jpg)
Conclusion
Metal Sample 1 is Aluminum Metal Sample 2 is Steel The Mystery Powder is Baking
Powder The Mystery Liquid is Rubbing
Alcohol