'Dead simple' way to see atomic structure

                          The scientist discovered how to pin down the moving molecules under room temperature conditions by accident. They were quite excited to discover the new technique. This new discovery reminds me of how Benjamin Franklin discovers electricity. The scientist Heath and Colleagues thought that anomalies might be water molecules trapped under the grapheme. They soon came to discover that water molecules are everywhere. The scientist then wanted to discover the "shrink wrap" at different humidity levels. They noticed that the structures became more prevalent at higher humidity levels and then discovered that they disappeared under completely dry conditions. Heath said "The grapheme perfectly templates the weakly absorbed water molecules on the surface, and holds them in place, for up to a couple of months at least. They took on how to explain the islands of ice. The scientist discovered that the first layer of water on mica is actually two water molecules thick. This water layer also has the structure of ice. There is many new things we sill are learning about water you just have to keep your eyes open. Listen to the news and even googled these subjects about water molecules because you never know when a scientist will discover something new that may help you understand the atomic.

Water Properties

When my group and I experimented with the properties of water with the lab part B (wax paper) we learned and discovered something interesting. We discovered the drop of water didn't cut in half with a toothpick. It simply just slides across the paper where ever you move the toothpick. Why does this happen you may ask?...

--What is happening? Water is not attracted to wax paper (there is no adhesion between the drop and the wax paper). Each molecule in the water drop is attracted to the other water molecules in the drop. This causes the water to pull itself into a shape with the smallest amount of surface area, a sphere. All the water molecules on the surface of the sphere are 'holding' each other together or creating surface tension.

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We then moved on to the next project or experiment with part A (pennies). At first though it was crazy, like could multiple drops of water stay on a penny? I soon came to discover that YES its very possible even though we didn't get many drops of water we got quite a bit. These are the results we had;

Me: 38 drops

Taylor: 35 drops

James: 30

So now I wonder how can a little penny hold so many drops of water ?! Thats when I decided to find out how science or water properties make this happen...

 

--The reason the water stays on the penny is due to surface tension. The molecules at the surface do not have other like molecules on all sides of them and consequently they cohere more strongly to those directly associated with them on the surface. Surface tension is like a flim that holds the water molecules together.

adhesion: The attractive force between molecules in one phase and different molecules in another phase.

 

Why does ice float?

--Ice simple floats because it is less dense then water. 

 

 

Important key words to know;

*cohesion: The attractive force between similar molecules in the same phase.
*hydrogen bond: A weak to moderate attractive force between a hydrogen atom bonded to oxygen, nitrogen, or fluorine, and an oxygen, nitrogen, or fluorine atom on another molecule.
*hydrophilic: Water-loving; a hydrophilic substance readily dissolves water.
*hydrophobic: Water fearing; a hydrophobic substance does not dissolve in water.
*polar covalent bond: Having an uneven distribution of electron density.
*solvent: A liquid which dissolves another substance without any change in its chemical composition.
*specific heat: The amount of heat needed to raise the temperature of a 1-gram sample of a substance by 1 degree Celsius.
*surface tension: The energy needed to increase the surface area of a liquid by a given amount.
*density: The ratio of a substance's mass to its volume.
*electronegativity: The tendency of an atom in a bond to attract shared bonding electrons.

What's Placebo?

    So what exactly is Placebo? Placebo is a sugar pill that’s it, your probably wondering what this has to do with anything. Yea me too. After doing the study research with the placebo website I discovered the reason for the sugar pill. Well they select a number of patients with some type of disease and give them medicine to cure it. About half and half of the patients get the actual drug while the other half gets a sugar pill. The reason for the sugar pill is so they can receive the data they need. The patients don't know if they are getting the real drug or the sugar pill. The doctors that give them the pill also don't know if they are giving their patient the placebo pill or actual pill. Therefore the patients can't decide what the outcome of the data the people will receive on the drug. They reason why they don't know nor do the doctors is because they can't decide the outcome. They would find out if the pill did actually work on the patient if they actually did receive the real pill not placebo pill. I think this is a good idea because then they know if the results on drug are real.

           When placebo was first introduced to me in Ludwig's class I didn't have any idea what it was going to be about. At first I thought maybe just about a chemical in the body I wasn't very close... was I? I learned a lot about placebo just by doing that project on the internet. It’s interesting how much different each experiment is on each kind of disorders. Learning that placebo was only a pill that was made of sugar was interesting. I thought how this could really have to be important with anything that deals with Science. Then I discovered it was very important to science and that it did help a lot, just a simple sugar pill. It's a smart idea to not let the patient or doctor know what pill it is; the real dug or sugar pill.