Essays Tagged: "organic material"

Decomposition of Organic Material.

Decomposition Lab Experiment"Wasting Away"Decomposition of Organic MaterialABSTRACT:For a period of eight weeks, an experiment was conducted to see how organic ... ose. On September 9, two plastic bags of the same size were filled with exactly the same amounts of organic material, a portion of banana peel, some bread, and some soil. The initial weight of each ba ... s, I realized that bacteria does in fact multiply, and consume more space, but it also consumes the organic material itself. Therefore, I needed to decide which had more weight mass: the bacteria that ...

(4 pages) 36 0 3.0 Apr/2003

Subjects: Science Essays > Biology

The importance of fungi in our world

Fungi have a very important role in nature. Fungi are aslo and break down and feed on decaying organic material or dead organisms. Fungi work along with monerans and protist to decompose the wast ... utrients from the environment and the alga uses them for photosynthesis. In turn, the alga produces organic molecules that the funguses use as food. Lichens can live in very harsh environments due to ...

(3 pages) 44 0 5.0 Mar/2004

Subjects: Science Essays

Discuss: Factors that determine what kind of objects and artifacts survive over long periods of time

gions may preserve normally perishable objects. The heat and the absence of moisture prevent decay. Organic material normally decays in more temperate regions, but some may be preserved in lakes and r ... logged peat bogs and marshes. Very cold climates provide perfect conditions for the preservation of organic material, where the climate acts as a refrigerator. Composition of the soil is also an impor ...

(1 pages) 37 0 3.4 Apr/2004

Subjects: Science Essays > Archaeology

Discuss: Methods by which archaeologists carry out the uncovering or excavation of archaeological sites

ese areas of different soil composition are designated as features and are caused by rodents, fire, organic material that has decayed and human activities. All soil removed is then placed in a sieve, ...

(2 pages) 38 0 3.5 Apr/2004

Subjects: Science Essays > Archaeology

Determination of the Chemical Oxygen Demand (COD) of River Water Samples

IntroductionThe chemical oxygen demand (COD) is a measure of the amount of oxygen consumed by the organic material within a water sample that is oxidized by a strong chemical oxidant, such as potass ... ng chemical oxidant, such as potassium dichromate (K2Cr2O7). Its main use is as an indicator of the organic and inorganic matter within water and effluent discharge giving a quantitative value of wate ...

(10 pages) 36 0 3.0 May/2004

Subjects: Science Essays

Essay on Three things necessary for life to evolve, SETI and CSETI, Earth an isolated planet, and the McDaniel report

ings necessary for life to evolve in the universe are liquid water, an abundant source of heat, and organic material. Liquid water is the main source of replenishment for organisms such as plants and ... rganisms to survive. Heat is also important because it aids in the growth of organisms like plants. Organic material is vital for life to evolve because almost every being has its own diet, and a vari ...

(3 pages) 26 0 4.5 Dec/2004

Subjects: Science Essays > Earth Sciences

Global Warming

nvolved in processes where it is stored as limestone and marble, as gas and oil and coal, and is in organic material in the soil. Not only do these gases make up our atmosphere, but they also keep the ...

(13 pages) 103 0 1.7 May/2006

Subjects: Science Essays > Environmental Science

Global WArming

nvolved in processes where it is stored as limestone and marble, as gas and oil and coal, and is in organic material in the soil. Not only do these gases make up our atmosphere, but they also keep the ...

(13 pages) 425 1 4.6 Nov/2006

Subjects: Science Essays > Environmental Science

Biomass Energy; Biofuels

ctricity generating facilities, 184 were nonutility generators, mostly wood and paper. **Biomass is organic material which has stored sunlight in the form of chemical energy. It is usually thought of ...

(3 pages) 28 0 5.0 Apr/2009

Subjects: Science Essays > Biology

Sedimentary Rocks

us and metamorphic rock). Sedimentary rock is formed by deposition and consolidation of mineral and organic material and from precipitation of minerals from solution. The processes that form sedimenta ... terial can become oversaturated and precipitate. Gypsum is a sedimentary rock formed by this method.OrganicOrganic sedimentary rocks contain materials generated by living organisms, and include carbon ...

(3 pages) 4 0 0.0 Oct/2010

Subjects: Science Essays > Earth Sciences > Geology & Geosciences