Josh+S

= = =Assignment Ten: Thee End... :)= Carbohydrates: Carbohydrates are organic molecules in which carbon, hydrogen, and oxygen bond together. your body uses carbs mainly for energy. They also help you protect your muscles and lower your cholesterol. Two examples are glucose and fructose.

Proteins: Proteins are compounds made of amino acids. Proteins regulate body processes, such as water balancing, transporting nutrients, and making muscles contract. they also build and repair body tissue. Two examples are titin and hemoglobin.

Lipids: Lipids are a vast collection of fats, oils, waxes, and fat soluble vitamins. They give the body structure and also gives some energy. Two examples are fats and oils.

Nucleic Acids: Nucleic Acids are macromolecules made from nucleotide chains. They carry genetic information through out the body. Two examples are RNA and DNA. =Assignment Nine: Acids & Bases= A concentrated solution is a solution where no more solvent can dissolve. a dilute solution is a solution where more solvent can still be dissolved. Strong acids will dissociate to almost 100% in water. Weak acid will not dissociate well in water. For examples check email... =Assignment Eight: Equilibrium= Once a chemical system reaches equilibrium the reaction continues to occur. The reactants and products produce the same amount. When you write an equilibrium expression you write: K= [reactants] / [products]. When you write your equilibrium expressions you do not include solids and you write the coefficient as a power. One example is NaCl (s) <--> Na (aq) + Cl (aq). Here is the expression.. K= [Na][Cl]. Another example is  N2H4(g) 2 H2(g) + N2(g) the expression is K= [H2]^2 [N2] / [N2H4]. One more example is CaCl2(s) Ca2+(aq) + 2 Cl-(aq). Expression: K=[Ca^2+][Cl-]^2. = = =Assignment Five: Solubility= When there is an oil spill in the ocean, booms can be used to clean up the oil. The booms collect the oil off of the water. They also set up these booms in front of a habitat that has many animals living there to protect them. Solubility is the property of a solid, liquid, or gaseous chemical substance called solute to dissolve in a liquid solvent to form a homogeneous solution.The rate of dissolution is the rate at which attraction and association of molecules of a solvent with molecules or ions of a solute. Generally, an increase in the temperature of the solution increases the solubility of a solid solute. With liquid and solid solutes, stirring brings fresh portions of the solvent in contact with the solute, thereby increasing the rate of solution. When the total surface area of the solute particles is increased, the solute dissolves more rapidly.

=Assignment Four: Water...= One special characteristic over water is how water stays in its liquid form over a wider range of temperature than most other substances. Water stays in its liquid form from 0 degrees celcius all the way to 100 degrees celcius. Another special property is that water is the only natural substance that can exist at all three states of matter at the temperatures found on earth. Another special property is that the solid form of water(ice) is denser than the liquid form water. Water also has a very high specific heat capacity. This means that a lot of energy is needed to increase its temperature. =Assignment Three: Global Warming= The greenhouse effect is the rise in temperature that the earth experiences because certain gases in the atmosphere trap energy from the sun. Some of the greenhouse gases are carbon dioxide, nitrous oxide, methane, water, and ozone. The molecules of the gases vibrate and stretch in a special way that they capture energy. The Earth emits the right frequencies of IR for these gases to absorb them. The gases then emit the energy back out towards the earths surface which warms up the earth.

"Global warming is too serious for the world any longer to ignore its danger or split into opposing factions on it." Tony Blair, speech, Sept. 27, 2005 "Global warming is indeed a scam, perpetrated by scientists with vested interests, but in need of crash courses in geology, logic and the philosophy of science." Martin Keeley, //BBC News,// Dec. 6, 2004 =Assignment Two: Gas Laws=

One observation i made that involves gas laws is my basketball being flat outside then when i come in after awhile it becomes less flat. The reason this happens is because of the volume-temperature law. When the ball was outside the volume was less because the temperature was lower. When I brought it inside it started to slowly regain some volume because the temperature starts to go up and to maintain the law the volume must go up also.

[|Root Beer explosion] In this video it shows a can of root beer exploding as they heat it up in the microwave. The reason this happens is because of pressure-temperature Law. It states that pressure/temp.= pressure/temp. So when the soda can is at room temperature the pressure is equal on both sides of the can, but when you heat the can up in the microwave the temperature goes up and to maintain the law the pressure must go up to. When the pressure on the inside of the can gets to be greater than that of the outside the can explodes because there is too much pressure in the can.

Another example which i observed is a balloon popping. When you try to squeeze the balloon, the balloon loses some volume which make the pressure increase according to Boyle's Law. The way the balloon pops is when you squeeze it and the pressure becomes to great for the volume its in the balloon will pop and the pressure is released. = = =Assignment One: TED Talks= [|Mathemagic guy]

I chose this talk because math is one of my favorite subjects in school. I also chose this talk because it looked very interesting and reading the preview of the video i did not believe he could do it. In the video Arthur races to beat people with calculators squaring a 3-digit number. He also goes on to square a 7-digit number all in his head and he says out loud what goes on in his head. Another thing he does is guess peoples birthdays. I was truly amazed after i watched this video. First of all that he could beat the calculators with 3-digit square numbers in his head and get it correct. Also that he could square the 7-digit number in his head and get it right also. I was also surprised when he did the one problem out loud how fast his brain and mind can work.