Saturday, September 26, 2015

Reflective Blog 2

Reflective Blog 2


This week was a week chock full of stuff to reflect on since we did many things like lots of white board meetings and Pogils.  First off on Monday we did a bunch of board meetings on the experiments we did  starting off with the burning steel wool.  My group, except me didn't try to come up with an explanation so they decided to just draw particles on fire instead of any actual reaction (I actually looked this up online and figured it out) and then made me present it because they all agreed that I looked the smartest there fore should present that we had no answer.  But this helped me learn in the way of leadership because then I made sure my group always had an answer and that we didn't talk to much.
Our diagrams of none flaming and flaming particles
We did several of these white board meetings on Monday but none worse than the the first.  Another on we did was the Alka-Seltzers on where everyone got about the same answer about how gas leaked out of the loose lid.  We also talked about the sugar cubes and how we all had almost no change in mass and sometimes everyone just gets the same answers.  My group actually was an outlier on this on because we forgot to but the cap on the scale at first.  We also did the precipitate mass and change and everyone's data was mostly similar to each others with a few being slightly different but made up to human error.
our precipitate diagram showing the particles mixing 
Wednesday we started our day with new seats which I didn't mind and we started our Pogils which as group work meant that we had to actually talk to the people at our group.  Our group reader was Lizzey (I don't know if that's how you spell her name) Bobby our presenter/recorder and Hannah our technician and Me the manger.   Our first Pogil was about how to properly record measurements Lizzey was gone most of the time the rest of us worked very efficiently to finish the pogil and it paid of as we finished time and were able to start the next one the same day.  But  more reflecting, we learned how far out we should estimate and how to estimate. the second one and the harder of the two was the on on sig. figs. and how to identify them.  This one I think was harder because it wasn't a very good explanation of it and some confusing questions, but despite all this my group still worked efficiently and since Lizzey was back we were even more well oiled. We were then asked to put our answers on a white board but since people weren't as fast enough we didn't have enough time to do a whit board meeting for this. After that Lizzey and I were sent to help one of the other groups and we did so successfully and they finished and had learned their mistakes before the bell rang. 

on Friday we did so more learning and review on Sig. Figs. and this was nice to just sit and listen to the teacher explain it because this is one of the ways I learn best in a classroom. We then measured the meniscus of graduated cylinders and had a white board meeting using what we learned from the Pogils to estimate the last digit or two and my group actually got pretty close to your measurements but as you said anyone could be right.

the graduated cylinders we measured






Saturday, September 19, 2015

reflective blog 1

Reflective blog #1

On Monday their isn't much to reflect about as we talked about things we can do electronically i.e. Evernote, Blogspot and Moodle, all things we will be using through out the trimester. On Tuesday we set up blogs on Blogspot and we had to submit a Google form to you but many of us students didn't do so until around Thursday. Also  the website was only allowing around 6 or 7 people then it wouldn't let anymore on. Wednesday is when we started the fun stuff. My group started at station #4 and took the mass of two vials (one from each side) and then made this precipitate (in the bottom picture) this caused no change in mass from the origianal two vials  for our group.
    
















Our next experiment was dissolving sugar in water and surprisingly our groups mass went up after dissolving the sugar, a change in mass that I attribute to error but it is possible that it maybe gained mass. the next station was a similar experiment but with Alka-Setzler tablets dissolving
 in water and it only lost little amount of mass which I think left in the form of gas.







We then did the steel wool experiment where we massed the steel wool and then pulled it apart and massed it again and our results showed that it lost a little mass that was most likely to be because the wool lost little flakes of steel.  And then we did the fun part we got to burn the steel wool and  surprisingly it gained nearly six grams of mass which I have no explanation for. Our final experiment was that we massed some ice in a vial and then we massed it when it had melted and some how it gained nearly seven grams of mass.














Then on Thursday we drew diagrams of the pulled apart steel wool before and after diagrams and put all the class data on a histogram
 and we explained why we got the data that we got with our boards and also what was happening with the particles in the steel wool

On Friday we got out the chrome books and worked on our first blogs a little bit and then Mr. Pasque gave us a tour of Blogger and Evernote. In the week before all of this we did two things.  The first was the pom pom pole. My group came up with the consensus that there were two ropes that were looped to each other and connected the pom poms vertical of each other (sorry about no picture I couldn't find the photos on evernote).  The next thing we did was you natural gas in to an upside down paint can with a hole on the top you lit the gas leaking out as it is lighter than it burned all the way  down  it exploded sky ward. I think this was caused by a vacuum because ait couldn't get in and then all the air rushed in and forcing the bottom out ( again sorry about the lack of a picture).