Essay Database

that the total energy of an object doesn't change if the object hasn't done work. Procedure: 1. Attach a photo gate to the bottom of the tube that is attached to a vertical metal rod. 2. Attach the photo gate to the computer, and open Mac Motion. …

by the British scientist Sir William Ramsay and Baron John William Strutt Rayleigh. ·Argon constitutes 0.93 percent (%) of the atmosphere. ·Argon's melting point is at -189.3 C ( -302.8 F ) ·Argon's boiling point is at 185.86 C ( -308.55 F ) ·Argon's…

research is morally right; however, using animals for the testing of cosmetics is morally wrong. "Animals need protecting," says Ann Rotsten, the wife of Michael Rotsten. Michael Rotsten is a lawyer in California. For Rotsten, no case or client…

no. 78; at. wt. 195.08; m.p. 1,772°C; b.p. 3,827±100°C; sp. gr. 21.45 at 20°C; valence +2 or +4. Pure platinum is a malleable, ductile, lustrous, silver-white metal with a face-centered cubic crystalline structure. Chemically inactive, it is unaffected…

good for you? Well, I spent a great deal of time pondering over it. Hopefully the research that I've done will help you make healthier decisions on what you drink. I did my research on five different types of drinks. They are: Coca-Cola soda, Tropica…

Hydrocarbons are chemical compounds of hydrogen and carbon; also called an organic compound. Hydrogen and carbon atoms can be combined in virtually countless ways to make a diversity of products. Carbon atoms form the skeleton of the hydrocarbon…

going to investigate the rate of reaction between sodium thiosulphate (thio) and hydrochloric acid. Hydrochloric Acid + Sodium Thiosulphate "" sodium chloride + water + sulphur The reactants are both colourless, but one of the products,…

and respiratory structures are contained within the Thoracic cavity, figure1. The respiratory system's primary function is to supply the blood with oxygen (O2) so that it can deliver O2 to the body. The respiratory system does this through breathing.…

consist of biopolymers (complex carbohydrates, proteins and lipids); large molecules made of monomers (sugars, amino acids and fatty acids/glycerol) linked together by chemical bonds. Bonds are of vital importance in living systems, as they are…

the following energy systems work. Energy systems; introduction Energy systems are cellular levels processes used to produce Adenosine Triphosphate (ATP) figure 1. This is an adenosine molecule linked to three high-energy phosphates that acts…