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How To Grow Venus Fly Traps

... of the trap are 6 to 8 tiny trigger hairs. An insect needs to touch two hairs once or one hair twice in order to spring the trap. The trap will close in less than a second, in ideal conditions, and if an insect is caught, the trap will seal shut and start secreting digestive juices. If the trap closes empty, it will slowly open in about a day. It may take a week to digest a housefly, and when the trap reopens, the shriveled shell of the insect is left behind. A trap may catch and digest up to three insects, after which the leaf turns black. O ...

Number of words: 1055 | Number of pages: 4

Detection Of Biological Molecules

... can always be found in fatty acids. The groups can be separated into two more categories, the polar, hydrophilic, and the nonpolar, hydrophobic. A fatty acid is nonpolar, hence it doesn't mix with water. Molecules of a certain class have similar chemical properties because they have the same functional groups. A chemical test that is sensitive to these groups can be used to identify molecules that are in that class. This lab is broken down into four different sections, the Benedict's test for reducing sugars, the iodine test for the pr ...

Number of words: 1477 | Number of pages: 6

Calories

... century. Mr. Lavoiser observed that chemical reactions gave off heat. He believed that this heat was some form of fluid, much like water, that carried the heat away from the reaction. (Rothman, 69) Antoine was on the right track; he merely got on the wrong train. Benjamin Thompson, also an eighteenth century scientist, observed that while drilling through brass with a dull bit he could produce enormous amounts of heat yet not get very deeply into the brass. This led Mr. Thompson to the conclusion that heat was the product of wor ...

Number of words: 439 | Number of pages: 2

How Humans And Fish Obtain Oxygen

... which is a skin flap in the back of your mouth that closes for food and opens for air. It is used to keep food and other materials from entering your trachea. The air then passes down the trachea which is a long “windpipe” that is lined with constantly moving cilia. These cilia whip back and forth and trap foregin objects and keep them from entering the lungs. The air completes its path down the trachea when it reaches the bronchus which is a speration of the trachea into the two different lungs it is used to carry oxygen to different part ...

Number of words: 779 | Number of pages: 3

The Effect Of Temperture On Air Pressure

... egg will be placed over the opening. PROBLEM: The problem is to determine the effects of air pressure at different temperatures. Since we cannot see air, we will attempt to determine if air exerts a force? HYPOTHESIS: My hypothesis for: 1) the experiment with the pop can is that the can will crush because of a drastic change in temperature. 2) the experiment with the milk jug and the hot water is that the milk jug will remain the same. 3) the experiment with the egg and the bottle is that the egg will not be sucked in the bottle. ...

Number of words: 1262 | Number of pages: 5

The Greenhouse Effect

... Many different things cause the greenhouse effect. The amount of carbon dioxide in the atmosphere is increased by 0.4 percent each year because of the massive consumption of fossil fuels such as oil, coal, and natural gas. Another contributing factor is the the amount of forest logged, every second of the day the area of a football field in trees is cleared by either being logged or burnt. Two other deadly greenhouse gasses which are entering the atmosphere even faster than carbon dioxide are methane and chloroflourocarbons, although t ...

Number of words: 463 | Number of pages: 2

Forest Management

... to maintaining a wide diversity of species would be to manage every acre of the forest the same way. Any change in forest habitat creates “winners” and “losers.” As forests go through natural cycles of growth, death and regeneration, species may inhabit or be absent from a given area partly in response to natural changes in the structure of trees and other forest vegetation(4). The same occurs when forest stands are managed by humans. Unless future credible research indicates otherwise, effort should be mad ...

Number of words: 931 | Number of pages: 4

Hydroponic Gardening

... to the plant by a variety of methods. The light that all plants need in order to perform photosynthesis and to grow will be provided for in most instances by a man made lighting system. Many different varieties of plants can be grown using the hydroponic technique. Some examples are lettuce, herbs and tomatoes, as well as seasonal flowering plant species. The use of hydroponics in gardening as well as large scale crop growth can enable the grower to produce many types of plants out of their normal growing season. Another attraction an ...

Number of words: 4139 | Number of pages: 16

Charles Darwin And Richard Owen

... Owen and Darwin. Richard Owen was born in 1804, and was considered lazy and impudent by teachers. He attended Lancaster Grammar School to pursue a medical career and later entered the University of Edinburgh medical school in 1824. However, due to the lack of quality in teaching, Owen transferred to Barclay School, and it was here that John Barclay, an anti-materialist, greatly influenced Owen. Through Barclay's recommendation of Owen to John Abernathy, President of the Royal College of Surgeons, Owen was granted membership to the ...

Number of words: 3241 | Number of pages: 12

Irrigating Crops With Seawater

... agriculture is when salt-tolerant crops are grown using ocean water for irrigation. Desert areas take up 43% of the surface of the earth and this new agriculture technique can be done in deserts. Hugo Boyko and Elisabeth Boyko first used seawater agriculture after World War II. Many different crops have been tested such as barley and the date palm. The writers of this article however have been testing halophytes, which, is a salt-tolerant plant that can be used for food, forage and oilseed crops. They first gathered several hundred ...

Number of words: 849 | Number of pages: 4

Clean Coal Technologies

... settled to the bottom of the swampy area creating layers of soggy dense material called peat. Sandstone and other sedimentary rocks formed creating pressure that squeezed water from peat. As more layers formed the weight and pressure turned the peat into coal" (Hertz 1) There are many types of coal, including anthracite, bituminous, sub-bituminous, and lignite. Anthracite has the highest carbon content, anywhere from 86 to 98 percent. And produces nearly 15,000 Btu's per pound (British Thermal Unit, is the amount of heat needed to raise the ...

Number of words: 1551 | Number of pages: 6

Insects

... eyes, and antennae; thorax, which operate the jointed legs and /or wings; and abdomen, which has organs for digested food, reproducing, and getting rid of waste products. The major systems in insects are the circulatory, respiratory, nervous, muscular, digestive, and reproductive systems. In the circulatory system, blood is pumped by the heart in a tube to the aorta, the head, and to other organs then enters the ostia openings along the sides of the tube back to the heart. The respiratory systems carries O2 to cells and takes away CO2 f ...

Number of words: 458 | Number of pages: 2

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