... those intervals respectively. CONTROL VARIABLE: Temperature of room, amounts of fluids (DI H20, H2SO4, KMnSO4, 1.5% H202) cleanliness of lab equipment (beakers, syringes, etc) EXPERIMENTAL VARIABLE: Time CONTROL GROUP: Assay of H2O2 without enzyme catalase EXPERIMENTAL GROUP: Assay of H2O2 with enzyme catalase reacting for periods of 10,30,60,120, and 180 seconds. HYPOTHESIS: If enzyme catalase is included in the ... seconds Baseline 3.3 3.3 3.3 3.3 3.3 Final reading 8.5 11.2 13.7 25 3.7 Initial reading 5.4 8.5 11.2 27.8 1.6 Amount of KMnO4 used (final-initial) 3.1 2.7 2.5 2.2 2.1 Amount...

• Word Count: 854
• Approx Pages: 3
• Grade Level: High School

... After he was done swinging on the swings, noticed something in the send. He picked up the object and saw that it was a white metal. The boy had no ides what it was, he was very curious, so he went to a Fabric Company across the street to see if anybody knew what is was. ... mechanical properties at cryogenic temperatures. The more highly alloyed alpha and near-alpha alloys offer optimum high temperature creep strength and oxidation resistance as well. The boy was surprised but the mom kept on going on the second structure which was Alpha-Beta and how in Alpha-Beta alloys are heat treata...

• Word Count: 817
• Approx Pages: 3
• Grade Level: High School

... diamond. Diamond is the hardest substance known on earth. Although diamonds found in nature are colorless and transparent, wen combined with other elements it's color can range from pastels to black. Diamond is a poor conductor of eat and electricity. Until 1955 the only sources of diamond were found in deposits of volcanic origin. Since the scientists have found ways to make ... the lead in pencils. Graphite is used as a heat resistant material an electricity conductor. It is also used in nuclear reactors as a lubricator. (Kinoshita 119-127) Amorphous carbon is a deep black powder tat ...

• Word Count: 1118
• Approx Pages: 4
• Grade Level: High School

In Kathryn Black's touching memorial, In the Shadow of Polio, she mentions numerous times the use of an iron lung as a life savor for many Bulbar Polio patients. As I continued to read through ... to control their ribcages and diaphragms, the iron lung respirator became a haven of sorts "giving the polio-stricken patients an extension of life, doing the breathing for them. In Black's book, she includes many examples of those who suffered from polio and had survived as a result of the iron lung. For instance, Arnold Beisser, a recent graduate of Stanford University Medical ... his illness (p...

• Word Count: 496
• Approx Pages: 2

... rays? In 1801, Johann Ritter conducted an experiment, to prove there was a light beyond violet. Because photographic paper would turn black faster in blue light rather than red light, he exposed the photographic paper to light beyond violet. The paper turned black which proved the existence of light beyond violet-ultraviolet light. A light beyond the visible spectrum. Ultraviolet rays are the sunlight ... ...

• Word Count: 509
• Approx Pages: 2
• Grade Level: High School

... to break compounds of phosphorus and other elements down to its basic parts to get it in its purest form. There are three main types of phosphorus: white, red, and black. In its purest form it is colorless, odorless, and poisonous. White phosphorus is extremely toxic. One of its most recognizable properties is that it glows in the dark. White phosphorus ... , it is stored in water, as it does not react in water. White phosphorus is also the "representative" of the phosphorus family; all chemical measurements will be based on it. Black phosphorus is brittle, with a metallic appearance. It...

• Word Count: 372
• Approx Pages: 1
• Grade Level: High School

... the Botanic Gardens in 1786. But, his most important achievement was when he was credited for the discovery of Nitrogen. He discovered this as a student working along side of Joseph Black. He used a large experiment in which he placed a mouse in a small portion of air until it died. After that he burned a candle in what was left of the air until ... dioxide. Now the air would no longer support combustion, was unlivable to a mouse, and a candle would not burn in it. He reported his experiment in 1772, and worked along with Black in explaining the results of his experiment using the phlog...

• Word Count: 266
• Approx Pages: 1
• Grade Level: High School

... is the main piece of our global warming puzzle, there are plenty of others. Methane and nitrous oxide, which is produced through both natural and human activities, water vapor, and black carbon are all pieces too. That being said, we all have to do our part, no matter how small because it does make a difference, for instance, like McKibben said: "People ... ...

• Word Count: 787
• Approx Pages: 3
• Grade Level: High School

... room with cigarette smoke, after being a long time smoker, the color of one's nails and fingers can worsen. These colors should be expected to be brown, yellow, gray or even black. One's teeth, like fingers, can also turn these colors. The final effect of smoking is how much money it steals from men and women all over the world. These days ... ...

• Word Count: 687
• Approx Pages: 3
• Grade Level: High School

... containers. We then got a piece of Elodea plant and put it in one of our test tubes. We put 25ml of 3% sodium bicarbonate solution in the test tube. We placed a black rubber stopper, which had a long rod that was bent at a 90-degree angle in the middle. We then waited 3 minutes to see if there were any leaks. After seeing that ... ...

• Word Count: 874
• Approx Pages: 3
• Grade Level: High School

... more expensive than the harmful chemicals that are currently being used. In some countries like Canada and the United States, CFCs are banned but are still being purchased through the black market, which continually keeps destroying this important layer that protect us from deadly ultra violet rays. Many of us do not realize the importance of the ozone layer. If it ... ...

• Word Count: 721
• Approx Pages: 3
• Grade Level: Undergraduate

... cause of global warming. "The actual burning of such forests release methane" (Bernard 71). When trees are burned they release an abundance of methane, which is in all of the black smoke above the forest. The " methane [released] is responsible for about one eighth" (Bernard 71) of the global warming process. This one eighth doesn't seem like it is much, but ... ...

• Word Count: 747
• Approx Pages: 3
• Grade Level: High School

... the digestive track. When the X-ray is taken, the intestines and other organs appear white. The X-ray picture shows clearly the shape of the intestines and other organs outlined against a black background. In the industrial applications, Barium is used mostly for glass and rubber making. The Barium Carbonate( BaCO3) is used to make glass stronger and as a rat poison. Chrome yellow ... ...

• Word Count: 556
• Approx Pages: 2
• Grade Level: High School

... water's edge, I come across a seashell no bigger than a golf ball. I pick it up to examine it. It is full of sand and I wipe it off on my shirt. It is black and green with white spots on it, lime or something, which makes it cold and slick to the touch. But when I turn it around, then I can see the obvious beauty ... ...

• Word Count: 618
• Approx Pages: 2
• Grade Level: High School

... water's edge, I come across a seashell no bigger than a golf ball. I pick it up to examine it. It is full of sand and I wipe it off on my shirt. It is black and green with white spots on it, lime or something, which makes it cold and slick to the touch. But when I turn it around, then I can see the obvious beauty ... ...

• Word Count: 618
• Approx Pages: 2
• Grade Level: High School