Get Essays On Science and Nature

Home « Join Now! « Member Login « Questions « Support «

Enter Topic

» Get Science and Nature Papers

Push/pull Theory

... and show how the pull theory is more viable. The push theory states that positive pressure pushes up from the roots continuously and that force maintains a constant flow of water circulating throughout the plant. This constant pressure that exerts force from the water it takes from the ground, supposedly should provide enough power to continue the circulation and distribution of water efficiently throughout the entire plant. Proof of root pressure is exhibited through a process called guttation. Through guttation, tiny droplets of water are s ...

Number of words: 906 | Number of pages: 4

Ozone

... it could be damaging, especially to humans. When discussing with the ozone layer, one should know the four major atmosphere levels on earth. The troposphere which is between zero and fifteen kilometers in altitude and has tempera- ture ranges from two hundred to two hundred ninety kelvins. The second is the stratosphere which ranges from fifteen to approxi- mately fifty kilometers in altitude and has temperature ranges from two hundred to two hundred fifty kelvins. The third level in the atmosphere is mesosphere. This level ranges fr ...

Number of words: 1112 | Number of pages: 5

Inventions Benefited Society

... and transact businesses more efficiently. For example, employees' health information can also be kept in computers. In the early days, we had used papers and pens to record data that we gathered. As a breakthrough technology today, computers have replaced pens and papers. Many businesses are now relying on computers because their statistics and calculations are more accurate than manual calculations. These machines are enabling us to perform many different tasks in less time and making our lives easier. Computers in telecommunicat ...

Number of words: 463 | Number of pages: 2

Abstract From: Cloning : Where Do We Draw The Line?

... the suffering of infertile couples. After years of research, scientists learned that "in a typical in-vitro procedure, doctors will insert three to five embryos in hopes that, at most, one or two will implant" (Elmer-Dewitt 38). And that "a woman with only one embryo has about a 10% to 20% chance of getting pregnant through in-vitro fertilization. If that embryo could be cloned and turned into three or four, thechances of a successful pregnancy would increase significantly"(Elmer- Dewitt 38). The experiment the scientists performed ...

Number of words: 771 | Number of pages: 3

Chaparral

... 8.4 million acres. That is over eight percent of the state. The isn't really used for commercial puroses, but is the major watershed and erosion protection in mountainous areas. The is composed of several hundred species of plants, most of which are evergreen shrubs belonging to many plant families such as the rose, oak, heath, buckthorn, and sumac. Common shrubs of the are chamise, scrub oak, mountain lilac, manzanita, and sumac. The plants have evolved to withstand long, dry summers and strong autumn Santa Ana winds that create ...

Number of words: 365 | Number of pages: 2

Eye

... on to muscles and glands. The is well protected. It lies within a bony socket of the skull. The lids guard it in front. They blink an average of once every six seconds. This washes the with the salty secretion from the tear, or lachrymal, glands. Each tear gland is about the size and shape of an almond. These glands are located behind the upper lid at the outer corner of the . After passing over the , the liquid from the gland is drained into the nose through the tear duct at the inner corner of the . Heavy laughter or crying causes musc ...

Number of words: 2091 | Number of pages: 8

The Aftermath Of Hurricane Mitch

... left behind by the rampaging river lie hardening in the midday sun. Mud is everywhere. Several feet of it fill city streets, the first and even second floors of buildings, automobiles and anything else that may have fallen victim to the hurricane's epic floodwaters. Workers hack and chip at the mud with shovels and pickaxes, and an endless procession of shopowners scurry between their gutted businesses and the river in a desperate attempt to wash and salvage their goods. A muddy valley runs past the Central Prison, where some of the ...

Number of words: 382 | Number of pages: 2

Global Warming

... media coverage of the role of human activity in the furthering of harmful effects, the majority of the general public does not view as a definite and imminent danger. Robert T. Watson supports this in his comment about society’s failure to recognize the severity of a potential environmental disaster as a result of . It is important that society treat human-induced as a serious global-scale environmental threat. The overwhelming majority of scientific experts believe human-induced climate change is inevitable. The question is not whet ...

Number of words: 2223 | Number of pages: 9

Managing Waste, To Save Our World

... sites by almost 10%. Waste cannot be simply thrown away anymore, now it must be managed. Managing our trash is the "in thing", yet it is hardly convenient. Lets face the facts, sealed toxins "won't affect us for a good twenty years". Although this may be true, there are still many advantages to waste management. Today, more people are in favour of companies who invest in "green products". As a result, companies have removed phosphates, bleaches, and have made their paper products out of recycled papers. At home, families, are saving things ...

Number of words: 205 | Number of pages: 1

Big Bang

... state from which the universe rapidly expanded.1 The was the start of time and space. The matter and radiation of that early stage rapidly expanded and cooled. Several million years later, it condensed into galaxies. The universe has continued to expand, and the galaxies have continued moving away from each other ever since. Today the universe is still expanding, as astronomers have observed. The Steady State model says that the universe does not evolve or change in time. There was no beginning in the past, nor will there be change in the fut ...

Number of words: 1243 | Number of pages: 5

Organic Compounds

... Chemists then learned to synthesize some simple organic compounds directly from inorganic substances! This amazing discovery marked the beginning of modern organic chemist. Today we define organic chemistry as the chemistry of carbon compounds. (pg.579, Smoot, Price, and Smith, Merill Chemistry) The largest group of organic compounds are the hydrocarbons. These compounds are composed only of carbon and hydrogen. Almost all other organic compounds can be considered as derivatives of the hydrocarbons. If the carbon atoms are linked in ...

Number of words: 1100 | Number of pages: 4

Creatine

... performance. Monohydrate is a white, odorless crystalline powder, clear and colorless in solution. With its popularity, you may find at any health or sport product retailer. It sells for roughly $35 a bottle, and is distributed by many manufacturers. serves as an energy reserve in muscle cells. Muscular contraction is powered by the breakdown of ATP (adenosine triphosphate) to ADP (adenosinediphosphate). When all the ATP is broken down, phosphate in the muscle donates a phosphate group to ADP, and further energy reactions c ...

Number of words: 1718 | Number of pages: 7

Pages: 1 ... 71 72 73 74 75 76 77 78 79 80 81 next »

Essay Categories

» Get Science and Nature Papers