Chemistry revision Atoms elements and compounds Atom-the smallest part of an element that can still be recognized as an element Element-a substance made up of only one type of atom. An element cannot be broken down chemically into any simpler substance Nucleus-middle of the atom‚ which contains protons and neutrons Electron-tiny particle‚ which surrounds the nucleus with a negative charge Compound-when two elements react and combine together which contain more than one element. There
Premium Atom
The Compound Light Microscope Commonly binocular (two eyepieces)‚ the compound light microscope‚ combines the power of lenses and light to enlarge the subject being viewed. Typically‚ the eyepiece itself allows for 10X or 15X magnification and when combined with the three or four objective lenses‚ which can be rotated into the field of view‚ produce higher magnification to a maximum of around 1000X generally. The compound light microscope is popular among botanists for studying plant cells‚ in
Premium Microscope Electron microscope
who ever is put in to a leadership position does not motivate their subordinate there is usually a lack in performance. People enjoy working for leaders with good motivational skills. Motivation skills discover what people are capable of doing and how well they can do it‚ plus encourage them to strive to do more while taking pride in what they have done. All leaders have to make decision. Once a leader demonstrate poor decision making skills it is extremely hard to be effective. This leader will
Premium Leadership Conflict Gender role
together Wavelength: the distance between similar points along a wave Compound light microscope: is an optical instrument comprised of more than one lens and uses light to illuminate the object under study Electron microscope: can provide magnifications in the vicinity of 1 to 2 million power Cell: is a fundamental anatomic until in which all life is contained 2. List and describe the features of four different types of compound light microscopes. Bright field Microscope: Field is bright wit
Premium Microscope Optics Telescope
How progressivism is related to curriculum? Progressivism is based largely on the belief that lessons must be relevant to the students in order for them to learn. The curriculum of a progressive school is built around the personal experiences‚ interests‚ and needs of the students. No preference is shown for curriculum materials. A progressive teacher does not rely solely upon textbooks. When he uses a textbook‚ it is usually in a selective way. He does not feel compelled to cover it all. The
Premium Education Progressivism Progressive education
Covalent Compound: Cocaine Cocaine‚ also known as coke‚ is a covalent compound‚ which are molecules that consist of groups of atoms held together by covalent or coordinate bonds. In the United States cocaine is an illegal drug because of the harm it does to a human’s body. It has been used for many years for many different reasons by many different people. Cocaine and it’s leaves‚ which are found on the plant of the Erythroxylen coca (cocaine.org)‚ originated by the South American Indians who have
Premium Cocaine Drug addiction Dopamine
Kate Kirby June 6‚ 2013 Title: Extraction of an Unknown Compound Purpose: The purpose of this experiment was to separate a mixture of two or more unknown compounds and identify them based on their melting point and reactivity with an acid or a base. Compound studied/Reactions: The organic solvent used in this experiment was methyl t-butyl ether (MTBE‚ 2-methoxy-2-methylpropane). The unknown that dissolved in the MTBE‚ but was insoluble in water. MBTE is very volatile and flammable. It was
Free Chemistry Solvent Laboratory glassware
31 7. Findings………………………………………………………………….37 8. Bibliography …………………………………………………………….38 9. Appendices ……………………………………………………………...39 LIST OF FIGURES Figure 1: Time series of the yield of the treasury bills…..………………….………...21 Figure 2: Time series of the Spread of the treasury bills………………….….…….....22 Figure 3: Time series of the yield of the treasury bills and WPI index….……………24 Figure 4: Relation between yield and GDP ………………………………….…….…25 Figure 5: Relation between yield and
Premium Inflation Interest rate Interest
Value added refers to "extra" feature(s) of an item of interest (product‚ service‚ person etc.) that go beyond the standard expectations and provide something "more" while adding little or nothing to its cost.[citation needed] Value-added features give competitive edges to companies with otherwise more expensive products. | | | | Value-added is used in several ways to indicate an enhancement to a product or an entity. By one definition‚ value-added is the difference between the cost of
Premium Value added
DECLARATION OF PECUNIARY INTEREST RE: COMMITTEE MEMBERS What is a Pecuniary Interest? A pecuniary interest is the opportunity‚ directly or indirectly‚ to profit or share in any profit derived from a transaction. According to Tazmania’s information Sheet 2008‚ you have a pecuniary interest when‚ if a matter before council‚ or any other committee‚ is decided in a particular way you will gain‚ lose or save money‚ gain a financial advantage‚ or suffer a financial disadvantage; could be expected
Premium Member of Parliament United Kingdom Parliament of the United Kingdom