Essay Database

… the body that can grow into other types of cells. These cells include red blood cells, which carry oxygen to various parts of the body, white blood cells, which fight off infection in the body, and platelets which help clot blood in the event of a cut.…

… Which consists of mainly magnesium. I have noticed that during the year it corrodes at different rates. I will now devise an experiment to investigate the causes of this problem. The reactions of magnesium with certain elements are detailed below (A)…

… involves burning alcohol in the air. Key science- Chemistry by Eileen Ramsden says that " an alcohol is a series of organic, homologous compounds, with the general formula Cn H2n+1OH". The alcohol reacts with the oxygen in the air to form the products…

… from the Old French "chretien" meaning "Christian". In hopes of escaping persecution, Heretical Christians, regularly fled into iodine-deficient valleys in the Pyrenees in southwest France and as a result, had children with congenital hypothyroidism.…

… chloride and potassium nitrate Background Information Molecular solids (sugar) and ionic solids (salts) both dissolve in water. However, they both dissolve in different ways. The intermolecular forces holding molecules of sugar together are relatively…

… an electrolyte upon the amount of energy that is able to pass through it. Aim: To prove that the concentration of an electrolyte affects the current that can be passed through it Apparatus: Electrodes, Beaker, Lab Pack Measuring Cylinders Wires Materi…

… few years. But how exactly can you define human cloning? Specifically, it is the production of genetically identical organisms via somatic call nuclear transfer. You take an egg, remove its nucleus, which contains the DNA, then you fuse the egg with…

… Name: Hramar ( 7 ) Experiment 7 : Analysis of commercial vitamin C tablet Title: Determination of the vitamin C content (ascorbic acid) of a commercial vitamin C tablet and compare the result with the value specified by…

… surface (open cut) or underground mining techniques, depending on the depth at which the ore body is found. The mined uranium ore is sent to a mill which is usually located close to the mine. At the mill the ore is crushed and ground to a fine…

… four materials is a better insulator to water under the same conditions for 5mins the materials are Bubble wrap, Aluminium foil, Cotton wool and Tissue paper. Prediction: I predict that Bubble wrap or cotton wool will be the best insulators due to…