IProposeWe

Well my proposal for a lab would be to pop a balloon without truly popping it. That is confusing so let me go on with the lab and it will all be explained.
Materials*balloons
*metal skewers or wooden skewers
*petroleum jelly (vaseline)
*a sharp pin*cellophane tape

Safety Precautions
*Point the tip of the skewer away from your face
*Put safety goggles on just in case the balloon pops
Procedure
1.Blow up the balloon but not too full
2.Dip the tip of the skewer into the vaseline and then spread the vaseline along the skewer
3.Gently insert the skewer in a twisting motion at the top of the balloon
4.Keep pushing the skewer all the way through until you can see the tip at the other end.
Explanation
Do you know what happened??? Well to answer that question you look deep into the balloon. Well not in the way a fortune teller looks into her glass sphere. No!!! We look muscularly. So rubber consists of polymers (long molecules linked together), but when they are chemically attached to each other then it is called cross-linking. This allows the balloon to be elastic until the pull is too great, then the polymer would break apart. Anyway, now you know this, the explanation of the skewer being able to go through the balloon is this. Since the middle of the balloon is the most stretched and the top and bottom of the balloon isn't then. This lets the skewers slip through the balloon by pushing the elastic molecules aside and the the cross-link remains so the balloon stays intact. This is a long explanation I know but it is quite interesting. Anyway if you are up for it there is another trick that would be fun. Just keep reading.
Procedure
1.Blow another balloon
2.Put the cellophane tape on the side of the balloon
3.Now slowly put the needle through the tape
Explanation
Wasn't that cool. Well the reason for this is that the tape held the balloon together and wouldn't let the elastic stretch which makes the balloon maintain its form. Which means the tape reinforces the cross-link together.

Webber

Wow. All I can say is wow. I had so much fun with the guest speaker. He was so much fun to work with. I just thought it would be just another lecture but it was the complete opposite. They were unbelievably great to have around. He had so much energy and was very inspirational. I never got bored with what they did. The labs that they did were so much fun and was the opposite from what I expected. My favorite and most funny lab was the one with the marshmallow. This already big marshmallow doubles it's side in the chamber but when the gas is released back in the chamber the marshmallow shrinks double it's size. It was so funny because of the expression Brijesh made. It just made the lab that much more enjoyable. This was a very good boaster for chemistry and makes me want to learn more.

Crushed

We just did a lab where we got to crush cans well we didn't do it with our bare hands but we did crush hands. Let's just say we got to crush cans without any force of our own. We used pressure. Well to be exact we used air pressure. It was really cool. The first time we did it we had no idea what we were doing but we were totally shocked when it happened. The lab consisted of a empty can a hot plate and a little bit of water. So we put a little bit of water in the can and we put that on the hot plate. With that we let it steam out all of the air. When we believe the air is mostly all gone we quickly in one movement put the can into cold water with the openning down. With that the can crushs in on itself. We couldn't fathom it the first time we tried it but once we did it over again twice and three times we kind of got what was happening. We believed that the air inside the can was pushed out from the steam that was coming out. So we we exposed the can to the air pressure in the water we crushed the can. Since there was no air pressure that was pushing against the can from the inside the can would just crush from the pressure from the outside. It was all very fascinating.

BOOM!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I loved what you did with those bubbles. You just lit it on fire and it floated to the ceiling. At frist it would just make more bubbles or something but you made floating fire which was really cool. The first time you did it I was so surprised and shocked. I had no idea what was happening and I just felt heat right in front of my face. It was so cool. The second time I saw everything and it was so cool. Even without the fire the bubles floating up was cool too. I was wondering how that happened but then you lit it on fire and that was just too awesome. I got worried when you said to light the bubbles on your hands on fire and was totally scared when you backed off like that. I knew playing with fire was dangerous but that puts a whole new meaning to it.

Stoichiometry????????????????

I never knew that stoichiometry would be hard. When I first started I had no idea what I was doing until you gave us examples and slowly I got the hang of it. The worksheets are a lot easier than I thought from when I originally saw it the first time. I thought, "Wow! How am I suppose to this?" But now I really get it and I finished most of the packet. I just have worksheet eight to do and the lab is to be on tuesday. I don't get how to encorporate split elements in the equation which is really getting confuzzled. Confuzzled technically means confused, but I like how the word sounds like. Anyway I really understand grams to moles to moles to grams and now it is stuck in my head that I can only think of that that when I look at the packets now. Now I am certain that I willl not forget the formula now. GramsX MolesX MolesY GramsY Gramsx MolesX MolesY GramsY GramsX MolesX MolesY...................................................................................

The Test

The test that we had a couple of weeks ago was kind of hard. I thought I did pretty well and I did study and I know how to do the equations and the other formulas. That is fine but it is the things on the presentations that you give us that gives me trouble because you explain it too fast for the class, and me to understand completely.

Like Disolves Like

"Like Dissolves Like" is like a saying between chemists or people who are learning chemistry. It means that polar dissolves polar and nonpolar dissolves nonpolar. So a polar solvent would dissolve a polar solute. It is the same for nonpolar solvents and solutes. Nonpolar solvents dissolve nonpolar solutes.