Monday, March 9, 2009
Abby Post #2
Air-Dry Clay Height Before Experiment Height After Experiment
Blue 3 cm 1.5 cm
Green 3 cm 1.2 cm
Pink 3 cm .6 cm
Brown 3 cm 2.5 cm
And here are my pics:
The first of a color of clay is the begging of the hour and the second picture of that sertain kind is the end of the hour! In my previous post i put the recipes in case anyonjhe is intersested!
How Conductivity Effects Different Baking Pans 2
Catapults Versus Trebuchets
Yesterday I began my experiment. I had finished building the catapults on thursday. I placed my catapult and my trebuchet next to each other in an open area. I shot ball one, three times from each weapon, and measured the distances. Then, I fired ball two, which was lighter, three times from each weapon, and measured the distances. I concluded, it was just as I had hypothesized. The catapults throws were much farther than the trebuchets, about two times farther. So my experiment was allot of fun and a great success. I know now that based on a range a catapult would be more fit for battle than a trebuchet.
How Conductivity Effects Different Baking Pans
Long, Tedious and a Pain in the You-Know-Where (or TJ's Hurricane Experiment)
A great picture of a rain trial that was a complete accident: it was taken from a behind the back position
The end result of the second storm surge trial
The first rain trial's result.
A wind trial set up. The Legos are merely indicators of wind speed, etc.
The video I was talking about (It is edited)
A really bad Star Wars joke (Sorry George Lucas). The R stands for rain.
Sunday, March 8, 2009
the Effects of Acid
Observations for 86% cocoa third trial
This trial was the last. As always the chocolate squares had to be broken into pieces and put on the stove, and the stove turned on. After a little bit, the chocolate bits began to melt. 86% cocoa was noticeably slower than 60% cocoa and little slower than 72% cocoa. Even after pushing the chocolate down with the candy thermometer, the chocolate melting rate was still slow. Finally, it melted. The 86% trials took longer than the 60 and 72% cocoa trials. This was because there is more fat in a bar of chocolate with a greater amount of cocoa, meaning that it will take longer to melt.
Observations for 72% cocoa on 2nd trial
Now I'm onto 72% cocoa trials. The first thing the chocolate did soon after turning on the stove, although not as fast as 60% cocoa, was the chocolate on the bottom and the sides began to melt. The pile of chocolate began to shrink and no longer looked like it was about to spill over. Once the melting process got to this point I poked the chocolate with the thermometer and the rest of the remaining chocolate melted quickly. After the chocolate was melted in the place of the chocolate pieces was melted chocolate and it was viable for temperature taking.
Saturday, March 7, 2009
Observing for 60% cocoa
This was the third trial for 60% cocoa of Ghirardelli chocolate. After breaking up the chocolate and putting it on the stove, the chocolate melted rather quickly. At first the bottom had the shiny quality, then you could see the sides and bottom were melting rapidly and the pile of chocolate began to shrink. After slightly pushing down on the chocolate with the candy thermometer it soon melted and I was able to take the temperature.
Friday, March 6, 2009
Kayleigh - Part 2
I have burned all 11 types of fabrics and watching the fabrics burn in the dark was fun. Each fabric burned in a totally different way, some fast, others slow. My favorite was jute because the way it is weaved it lit up in a cool pattern and it burned for the longest time. Polyester was interesting because it melted and it looked really sticky, like hot glue. Probably the worst smell out of all of them was denim which smelled like rancid chemicals.
Most of the fabrics did match what was on the burn chart and I was able to correctly identify what some were. It was difficult to actually tell if they were melting or burning depending if they are engulfed in flames. (i tried to put a video but it took too long.
Wednesday, March 4, 2009
Christian Experiment part two
This is the second post for my project. After executing the more accurate procedure results made much more sense. Instead of taking the time for the water to boil i took the temperature at which it reached when it was boiling. For the freezing i made sure the salt crystals were dissolved in the water before i put them in the freezer. My two hypothesis were correct, iodized salt-water solution requires the highest temperature to boil, and halite salt delays the time in which water freezes.I could have made my experiment more acurate by finding a way in which to determine what was boiling and what was not. Enjoy the pictures below.
Monday, March 2, 2009
Sasha Andracchio-2nd post on the blog
Sasha Andracchio
Christian-How Does Salt Affect the Boiling & Freezing Points of Water?
Wednesday, February 25, 2009
Pietro's Science Project
I have all of the materials for my project. The only thing I am worried about is if I have enough examples to show the loss in Vitamin C. I am already boiling and steaming the carrots. Also, do you guys think that Vitamin C tablets or Emergen C are the way to go.My project is not going to take me a very long time so if you have any comments, please email me or talk to me in class. I am trying to get ideas from everyone so if you could talk to me, that would be great.
Thanks
Pvmoran
Sunday, February 22, 2009
zoe-the effects of acid on metal
AIR
(all unchanged)
VINEGAR
Brass- On the 3rd day, the water took on a bluish color and day by day the color has gotten darker and more prominent. However, the nails remain unchanged
Iron- On the 2nd day, a red line formed around the edge of the vinegar at the top. Over time, the line has gotten darker and more red. The nails, which when I bought them were a metallic color got to be completely black by the 4th day. There are also many black flakes that have fallen off the nail and have gathered at the bottom.
Stainless Steel- There is a red line much like that on the iron, but more orange in color. The nails, however, remain unchanged.
WATER
Brass- On the 5th day, some small, white precipitates formed, but they are now gone and the nails look unchanged.
Iron- On the 2nd day, the process of corrosion started, but today, the nails are completly coated in a light orange rust. The water has also taken on this color, because the rust color from the corrosion leached into it. The coat of corrosion looks very thick, almost like a fur coat.
Stainless Steel- On the 3rd day, corrosion patches started to form and today the patches are very big and thick. The color, like with the iron, has leached off into the water. There is now a vein like pattern that is going along the bottom of the cup. The color is more re than with the iron.
(i do have pictures but they would not load onto blogger :[)
Saturday, February 21, 2009
Abby Part #1
Hi! Thursday the 18th i made my clay, aka "Play-Doh." I made four different kinds, a really easy and sticky one, an oatmeal one, a really good and regular one and a cinnamon one. Here are the recipies:
Easy and Sticky
2 cups flour
1 cup water
Then knead well...
Oatmeal
1cup flour
1 cup water
2 cups oatmeal
Regular and good
1 cup flour
1 cup water
2 teaspoons cream of tartar
1 teaspoon olive oil
1/4 cup salt
This one has to be stirred over medium heat then kneaded until the foodcoloring (if you put it in) is well mixed in... this one was thought by many to be real store bought play-doh. (this one has the picture of a pot... this is what it looks like before it is kneaded... don't be fooled its not burned!)
You can add food coloring or colored drink mix to any of these and it will change that color!
And the last... (this one can't have food coloring...)
Cinnamon
1 1/2 cup cinnamon
1 cup applesauce
1/3 cup glue
Next i want to try to find out which one is the most sqeeziest... so what im going to do it take two 6 by 6 boards and put the play-doh between them. Then im going to put a weight on them and let it sit there for one hour and which ever one is the thinnest after the hour is the most squeeziest.
This is my sister, my brother and me kneeding the really really really sticky and simple one... my half of the class knows how sticky it is!
This is a really fun project so far and i sugest whoever reads this make some of these recipies or go on to google or yahoo and type in Playdough recipies!
Kayleigh - Part 1
For my project I am testing to see the distinction in burning different fabrics. I am going to burn a total of 11 different fabrics in which I have cut out 4 2x2 squares. I definitely know what type some of the fabrics are, but there are others which I am not so certain. I am using a fabric burn chart found in my research to do 2 things: 1 find out what type of fabric it is and 2 to see how accurate the chart is compared to what actually happens. I plan on burning 2 of the 4 individual fabric squares. The first time is a trial run to get an idea of what happens. The second time will be to write down observations, take pictures, and see if there was a distinct difference between the same burning fabrics.
Monday, February 16, 2009
TJ can't Get the Glue to Stay
A set of sticks
The two kinds of joints
A completed House.
THIS is why you don't build a lot of one side.My Workspace
See you with results soon!