Plymire,+Jonah

I believe that the first and second graphic organizers showed a more basic understanding of how matter is classified and broken down into different categories. I thought the first graphic organizer showed a more visual affect how different sources of matter are described in the way the substances reacted. The third graphic organizer seemed to me like it was more specific once it got down to how a compound and element were described. The third graphic organizer gave more examples of how pure substances and mixtures were defined. Although all graphic organizers showed the basics of how matter was categorized, and the different forms of it.

I prefer the third graphic organizer because it was clear and descriptive, and gave examples of pure substances and mixtures broken down. It also caught my eye with the 3-D effect on the display of graphics.

Jonah Plymire

__Separation of Matter__

The most common and familiar techniques of separation that I've experienced was filtration. Almost everything now a days are put through a filtration system to ensure safe production. In the distillation process of separation I've learned that the liquid being separated is a solution, which is very interesting because solutions are chemically combined substances. Today I've tested chromatography by using the separation of pigments with M&M's and Skittles. I observed the brown M&M had an array of colors and pigments in order to create the color brown, which i thought was interesting. %Pr

Jonah: Good post but just FYI solutions are not chemically combined. MW

__Why is Measurement__

If I had to describe a situation dealing with precise measurement I would have to concern football. When I'm running a 31 trap and its third and one and I miss the first down by less than an inch I would be absolutely ticked off. Even if it was a regular season game, I'm here to win baby!! I want every first down, and I want an experienced chain gang. :)

Jonah

Jonah, A little short but funny! MW

__Redefining the Kilogram__

// The kilogram is one of the seven mass measurements in the International Systems of Units. I believe this mass unit is very important to the world because it is the last of the SI measurement. Although there are many prototypes of the original kilogram mass, I think the idea of making multiple prototypes was an inaccurate decision. The reason being concerned with accurate measurements during collaborations with mass measurement accuracy, is extremely important to many studies. The kilogram prototypes aren't the same because now their are various copies representing specific measurements compared to the constants measurements, Avogrado's and Planck's.

Jonah

__Airline Security__

Modern day security has advance so rapidly that absolutely every situation has been experienced. The first time I've ever been on a plane was about four years ago and I was terrified because about four years before my first plane ride a terrorist attack was issued that year. Although once I passed through multiple security gates with many different purposes I felt more secure and confident to fly. One of the security checkpoints detected metal objects and my mom went off once she passed through the metal detector and was searched with nothing on her until they saw that she had dental work done in her mouth. That to me is very impressive because of how sensitive the sensors are, and how deep they can read objects. Since my first airline security inspection four years ago I believe that technologies have advanced even more, making the top airline destinations the safest.

Jonah: Your Article on airport security is very interesting. Although I had flown on planes since I was like 2, after 9-11-01 I didn't want to fly either. I was also terrified. My parents told me about all of the improvements that had been made and how planes are safer now and security is better. Anyway, great article. The only criticizem I could give is that it didn't realate completelty to chemistry and it may have been a bit short. Other than that, great work! :)

Jonah, It does indeed relate to chemistry - through physical properties like density. Be more specific in you posts - check the rubric. 4 stars.

__Mole Day!__ // WOW! I would never of thought that the discovery of molar mass has been such an important symbol for chemistry. I think its very cool that Mole Day starts on the specific month, day, and hours to the corresponding mole mass numbers. Its very interesting how many schools in the United States contribute to this day nationally and take part in celebrating it by actually doing activities with the mole animal! Its pretty cool, and I think our class should capture a mole and bring him in to celebrate mole day. :) But I checked out some of the different links that showed the mole history and how the mole was discovered and interpreted. Also how you can contribute to the foundation and sign up and become a member of the Mole Foundation! I might do that, its so cool! :)

Jonah, I appreciate your enthusiasm about Mole Day but your mention of anything scientific was lacking. 4 stars. MW

Aweeeee :) smile! Have fun ;)

-Furb

__Dust Explosions and Stoichiometry__

I would never think the combustion of sugar and oxygen reactants were materials highly reactant to each other. Sugar is a product every day consumers use in their foods, and you would think if we ate enough sugar and inhaled enough oxygen, our bodies would implode. Although if the sugar is so fine and broken down to a dust texture it would make sense that explosions are possible inferring the sugars dry enough to be sensitive to ignition. Sugar is soluble at large quantities but size matters when ignitions of sugar creates explosions. So little amounts of sugar only react with the oxygen. All of this makes sense, and I think the article was interesting and inspiring.

Jonah, Decent job! MW

__Sulfur Hexafluoride Article__

Sulfur hexafluoride is a gas more dense than air and it can be proven simply by inflating it into a balloon. Its very understandable that less dense gases would move quicker than heavier gases only because their weighted differently. So inflating a balloon with a heavier gas will actually expand the balloon itself and eventually pop after a while. The reason for this makes complete sense because heavier gases have smaller amounts of kinetic energy between each molecule. Each molecule takes more time to pass through an object or space and fill it up or penetrate through so as the sulfur hexafluoride is inside the balloon, oxygen from outside penetrates the balloon faster because it produces more kinetic energy. I thought this article was very interesting and i learned something new and understood gas "laws" better.

__Motion Detectors__

The differentiation of motion detectors all apply to daily life situations. These situations may concern simply the privacy of your home, or the security of an important building for example. Most of these motion detector technologies are familiar to me because of past experiences. Maybe "ding-dong-ditching" while getting caught under the sudden flash of a spotlight or watching Tom Hanks play the act of a "spy" in Mission Impossible. Personally I've become unfamiliar with depths concerning how these motion detectors sense any type of misplacement of objects, or change in the frequency of sound, or the regulation temperature. This fortunately compares to what my class has learned in the past week, with electromagnetic energy becoming regulated to visible frequencies with infrared light. Einstein of course has concluded that if you have an intense enough low-frequency wave you should have equal stability to a less intense high-frequency wave. So to detect humans only within an area vulnerable to detect temperature giving off infrared light the detector must be enclosed to only penetrate through certain visible surfaces. This in fact enhances the ability for a person to choose to keep the detector on when you like rather than feeling cautious if the sensor detects an unfamiliar vibration triggering the system. I think the infrared system is the most advanced, safe and efficient system because it is easily triggered within certain areas. It also is precise for when you want it to be turned on; actually that makes the detection system more beneficial, or eco-nomical. GO GREEN! I created that word if your wondering.

Jonah, Looks good! A bit late though. 4 stars.