The forensic specialist I am interested in is the forensic chemist. Forensic chemistry is very interesting to me because the chemists can find small details and do precise tests on them.(eg, small blood splatters, ink samples, DNA samples etc) I think that forensic chemistry is the most important type of forensic, although the others are important too. If it wasn't for the chemists there would be no one to do the drug tests, blood analysis and DNA tests. there have been people who were serving time in jail for many years until they came out with a way to test DNA. Many people have been proven innocent as a result of these tests.
Here is a video showing some of what forensic chemists do.
http://www.youtube.com/watch?v=u1lrid2nobMd2nobM
Wednesday, 30 January 2013
Tuesday, 29 January 2013
Thursday, 24 January 2013
H2 yield
H2 yield lab
In this lab we reacted magnesium ribbon with hydrochloric acid, and we tried to capture the hydrogen gas that was produced in the reaction in a graduated cylinder.
What we did is weigh piece of magnesium ribbon and wrap it in copper wire.
Then we got to graduated calendars and put a tube from the bottom of one onto the other one. The one that we added were going to add magnesium to was air tight so no air could escape from it. Next we added 20 ml of HCl water and magnesium to the cylinder.
We quickly caped it off so no gas could escape. As gas built up in the cylinder it slowly forced the water up the tube and into the other cylinder. Once the reaction was finished we wrote down the amount of water in the second cylinder, and that equals the amount of gas produced.
apparatus
2 graduated cylinder
magnesium ribbon
hydrochloric acid
distilled water
plastic tubing
copper wire
malachite lab
malachite lab
In this lab we decomposed copper (II) hydroxide carbonate into copper oxide and water.
We measured out a precise amount of the malachite and calculated the the amount of product we would obtain and calculated the % yield. Then we did the experiment. we started with scooping the malachite into a crucible, then we put the crucible on a hot plate, and we heated the malachite stirring it constantly until it turned from a green to a dark black. The we removed the copper oxide from the crucible and weighed it. The product weighed the same as what we predicted it would weigh. their was a 110% yield.
apparatus.
1 crucible.
1 glass stirring rod.
1 hot plate.
3 grams of malachite.
1 weigh scale.
1 lab scoop.
Wednesday, 23 January 2013
Bible search 12
1) Jesus knew he was going to die.
2) Jesus was thinking about how Judas was going to betray him.
3) He knew that his father had put all things under his power.
4) He got up, put a towel around his waist and washed the disciples feet.
5) He didn't want to put himself above Jesus.
6) Jesus knows that they are sinful.
7) The foot washing is like a renewal of baptism Jesus said "a person who has had a bath heeds to wash his feet".
8) Jesus said "unless i wash you you will have no part in me.
9)?
10) Your attitude should be the same as that of Jesus Christ.
11) Humility is exhibited by foot washing.
12) Jesus predicted his betrayal so that Judas would know that he know.
13) The knowledge of his coming betrayal made him stressed .
14) Jesus said "whoever dips his bread with me is the one who will betray me".
15)The disciples though that Jesus was telling Judas to go get stuff for the supper.
john 20:28
John 20:28
I think that the reason why John 20:28 is important, is because it shows us that there are people who don't have very much faith. They won't believe something unless they can not just see the proof, but touch it as well. I think the reason for Jesus saying "blessed are those who haven't seen me but will believe anyway" is that he is going back to heaven and no one will see him again for a long time. If no one believed in him because they couldn't see him, that would be bad. It means that they couldn't be saved. So he had to say that for the people like Thomas that won't believe that he is alive again until they have touched him.
It gives us an example of how we should be as well as an example of how we shouldn't be.
Tuesday, 8 January 2013
bible search 15. Nicole, Alysia, and will.
1) Jesus requested to be glorified.
2) The first benefit Jesus prays for is That the people can have eternal life, the second benefit is that the people will know God.
3) The human path to eternal life is Jesus.
4) They came to realize that Jesus is God.
5) Jesus didn't pray for the world.
6) Jesus prays that God protects the disciples from the evil one.
7) Jesus prays that the disciples are sanctified.
8)
9) Jesus prays for those who believe in him.
10)
Tuesday, 1 January 2013
bible search 16
1)He led them to the garden.
2) Judas knew Jesus would be in the garden, because Jesus often went there.
3)Jesus knew all things that would come upon him, so he was not surprised when Judas found him.
4)When Jesus said who he was, everyone drew back and fell to the ground.
5) Jesus requested that peter put his sword away.
6) Jesus responded by telling peter to put his sword away, then he healed the man that peter hurt.
7) The officer struck Jesus because he didn't like the way he answered the high priest.
8) Peter told the person who kept the door that he was not one of Jesus disciples.
9)Peter was warming by the fire when someone asked him if he was a disciple of Jesus.
10) The person who recognized peter as being a disciple was related of the one who had his ear cut off, he was a servant as well.
11)If they had gone in they would be defiled.
12)They couldn't kill Jesus unless Pilate said they could.
13) They accused him of being an evildoer.
14)Jesus said my kingdom is not of this world. If my kingdom were of this world, my servants would fight, so that i should not be delivered to the Jews; but now my kingdom is not from here.
15) Jesus is a king who is not of this world.
16) Pilate didn't really have Jesus killed, but out of pressure he allowed the Jews to kill him.
Pilate was tying to stick up for Jesus, but the Jews just wanted to see Jesus dead.
17) He had Jesus scourged, and they put a crown of thorns on him.
18) The Jews said "we have a law, and according to our law he ought to die, because he made himself the son of god".
19) Pilate did not change his mind about Jesus at that point, but he did become scared.
20) We have no king but Caesar.
21) Jesus of Nazareth the king of the Jews.
22) Pilate said "what i have written i have written".
23) Pilate said four times that he could find no fault in Jesus.
24) Jesus last words were" it is finished ".
25) Joseph of Arimathea and Nicodemus.
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