Energy+Transfer

Decomposition of the Prawn Why it turns orange? Boys and girls, below is a site explaining why prawns and lobsters turn orange when cooked. It can be linked to decomposition... how do you think so? []

Mr Lin

SUMMARY OF ENERGY TRANSFER: In physics and engineering, **energy transformation**, **energy transfer**, **energy conversion** or **power transfer**, is any process of transforming one form of energy into another. Energy of fossil fuels, solar radiation, or nuclear fuels can be converted into other energy forms such as electrical, propulsive, or heating that are more useful to people. Often, machines are used to transform energy. The efficiency of a machine characterizes how well (how efficiently) it can produce a useful output (such as work for example) through such a conversion. Energy transformations are important in the application of the energy concept in various natural sciences including biology, chemistry, geology and cosmology. In chemistry, the term may be used to describe the process of vibrational energy from one molecule (or molecular domain) to another molecule (or molecular domain). Energy may be transformed so that it may be used by other natural processes or machines, or else to provide some service to society (such as heat, light, or motion). For example, an internal combustion engine converts the potential chemical energy in gasoline and oxygen into the propulsive energy that moves a vehicle. A solar cell converts solar radiation into electrical energy that can then be used to light a bulb or power a computer. The generic name for a device which converts energy from one form to another is transducer.

Geng Leong

Some useful (hopefully) links on energy transfer and food webs. http://en.wikipedia.org/wiki/Food_chain http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/F/FoodChains.html http://www.usoe.k12.ut.us/curr/science/sciber00/8th/energy/sciber/chains.htm http://www.vtaide.com/png/foodchains.htm http://www.tburg.k12.ny.us/mcdonald/foodch1.htm

Isaac