Science Essays

Energy is one of the most important sources for economic growth for any developing country. It has many forms like natural gas, hydra energy, power energy, water and thermal etc. Todays most developed countries like UK, China, Malaysia, etc. are successful because they are managing their resources in a sensible …

A photograph is an image made by a photo-chemical reaction which records the impression of light on a surface coated with silver atoms. The reaction is possible due to the light-sensitive properties of silver halide crystals. Equation form for silver halides: Ag + + e – Ag Species produced include: …

A fossilfuel power station is a type of power station that burns fossil fuels such as coal,natural gas or petroleum (oil) to produce electricity. Central station fossilfuel power plants are designed on a large scale for continuous operation. In many countries, such plants provide most of the electrical energy used. …

The goal of the experiment is to determine the percentage of Mn in an unknown metal sample by means of colorimetric analysis. First stock solution of KMnO4 with known concentration was diluted and then carried to spectrometer for analysis. The peak with highest absorbance was taken as λmax. Then the …

The equilibrium constant for the solubility equilibrium between an ionic solid and its ions is called solubility constant [1] , Ksp of the solute. For example, the solubility product is defined by MxAy(s) ⇋xM(aq)y++ yA(aq)x- (1) Where M is the metal cation, A is the anion, x and y are …

1.0 Introduction The human body is constantly working to remain healthy and functioning. In order to achieve this, the body needs a constant supply of energy as well as other vital nutrients. This is absorbed from the food we eat through a process called digestion. Digestion takes place in several …

The film viewed recently viewed in class titled “Discovering Ardi” and produced by Discovery Communications shows the breakthrough finding a full skeleton of a new hominid buried deep beneath the group in Ethiopia that links chimpanzees and apes to the modern day homo sapiens. The amazing discovery was lead by …

Pre-Lab 1. If a solid, a gas or a weakly ionizing compound such as H2O formed, then a reaction has occurred. 2. The formation of a solid, the formation of a gas and the formation of a weakly ionizing compound are the driving forces that control a double replacement reaction. …

* Linear Speed – The time rate of motion of a point along its path, or the rate at w/c a point is “approaching” or receding form another point in its path. The 100 meter dash ends at the end of the straight-away. * Angular speed – The time rate …

Early Childhood setting is a learning process of young children where they develop learning skills. In today’s society, technology has played a big factor in the classroom. The role of technology in the classroom is make sure that appropriate materials are used in supporting children to ensure that they are …