1. What are the methods that are used by forensic scientists to determine the nature of an unknown substance (like a white powder)?
The methods that are used were while observing unknown powders is with the naked eye, a lens, adding some type of acid and then seeing how the powders react to it. Then seeing what happens when put on a hot plate to see if it burns, changes colors or stays the same. Some other methods they do is adding water, adding sodium carbonate, and adding Lugol's solution.
2. How might this lab be helpful in preparing you for the mission?
The way this lab will be helpful is if we come across and unknown powders we will know how to test them.
Saturday, February 28, 2009
We'll Make You Talk
1. Which type of communication was your strongest?
The strongest communication for me was when we had to draw what the communictor person was telling us to draw. That was hands down the strongest for me. I think that was my strongest because the directions to us were simple yet descriptive which made it easier to draw. Another one i thought was my strongest communication was where I had to type to the on IM how to undo the lock. That was one of my strongest communication skills because I had to give detailed instructions to my partners so they could unlock the lock.
2. Which was the most difficult for each of you?
I believe the communication activity where you could only use motions was the hardest activity. That part took my partners most of the lab because they were not understanding my movements.
3. Which communication types do you think will be the most important for your mission to the space station? Why do you think so?
I thin the most important types of communication is being descriptive and only using motions. I chose these because we might get into a situation where we have to be extremely quite and communicate through hand signals. I chose descriptive instructions because if you don't have detailed instructions it will be hard to complete the mission.
The strongest communication for me was when we had to draw what the communictor person was telling us to draw. That was hands down the strongest for me. I think that was my strongest because the directions to us were simple yet descriptive which made it easier to draw. Another one i thought was my strongest communication was where I had to type to the on IM how to undo the lock. That was one of my strongest communication skills because I had to give detailed instructions to my partners so they could unlock the lock.
2. Which was the most difficult for each of you?
I believe the communication activity where you could only use motions was the hardest activity. That part took my partners most of the lab because they were not understanding my movements.
3. Which communication types do you think will be the most important for your mission to the space station? Why do you think so?
I thin the most important types of communication is being descriptive and only using motions. I chose these because we might get into a situation where we have to be extremely quite and communicate through hand signals. I chose descriptive instructions because if you don't have detailed instructions it will be hard to complete the mission.
Bullet Lab
1. How can the angle of impact of a bullet in a wall be used to determine other critical information about the scene of a crime?
Knowing the angle of the impact of the bullet can let forensic scientist know the height of the shooter. Knowing this information well also help Forensic Scientist determine where the bullet was shot from. But you cant always get accurate measurements. My partner and I used a protractor to try to get accurate measurements, yet we were still off on some.
How might this lab be helpful in preparing you for the mission?
2. The way this lab will be helpful is on our mission we may come across bullet wounds/markings and we will need to figure out where the bullet was shot from and how tall the shooter was. Another way this will help us in our mission is it will teach us to be precise with our measurements etc.
Knowing the angle of the impact of the bullet can let forensic scientist know the height of the shooter. Knowing this information well also help Forensic Scientist determine where the bullet was shot from. But you cant always get accurate measurements. My partner and I used a protractor to try to get accurate measurements, yet we were still off on some.
How might this lab be helpful in preparing you for the mission?
2. The way this lab will be helpful is on our mission we may come across bullet wounds/markings and we will need to figure out where the bullet was shot from and how tall the shooter was. Another way this will help us in our mission is it will teach us to be precise with our measurements etc.
Wednesday, February 4, 2009
Fiber Lab
1. Can you use fiber evidence to identify its source?
Yes you can use fiber evidence to determine its source. When you are trying to determine the the fiber scientist run different tests to see the similarities and differences in the fibers. They test it in a flame to see how it burns. They also look at the color. The magnifying glass really helps you see the similarities and differences in the fibers.
2. How might this lab be helpful in preparing you for the mission?
The way this will help the mission is it is teaching us how to work with fibers that are found at a crime scene. This lab is teaching us how to work with fivers found at a crime scene and test them. :)
Wednesday, January 28, 2009
Urine Lab
1. How can we use a urine sample found at the scene of a crime to provide clues to a criminal trial?
For this lab Kayla and I had to use a centrifuge, hot water and Benedict's solution to find htese answers to different tests. We had to figure out which suspect was the murderer. Because we tested different urine samples were able to match then we could find which sample matches the cellar sample. After doing all of these tests we decided that it was suspect 2, vile C.
2. How might this lab be helpful in preparing you for the mission?
This lab will be helpful in preparing us for the mission because if there are multiple urine samples we wil know how to test them. We will also know hot to compare the different urine samples.
For this lab Kayla and I had to use a centrifuge, hot water and Benedict's solution to find htese answers to different tests. We had to figure out which suspect was the murderer. Because we tested different urine samples were able to match then we could find which sample matches the cellar sample. After doing all of these tests we decided that it was suspect 2, vile C.
2. How might this lab be helpful in preparing you for the mission?
This lab will be helpful in preparing us for the mission because if there are multiple urine samples we wil know how to test them. We will also know hot to compare the different urine samples.
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