• Television Picture Invented Camera
    410 words
    We have at least a television in our home. television allows us to hear and see events as soon as they happen. If our grandma's mother or father see TV, they " ll suprised and say 'This is diablo's machine!' . We watch TV at least two hour in a day. HOW WORKS TV When a TV program is broadcast the sound and picture are sent out simultaneously by two different radio systems. The TV camera takes the picture. Camera is the most important part of the camera. The light from the object is allowed to f...
  • Experimental Tube Respiration Rate Temperature
    640 words
    Introduction: Respiration commonly known as the inhalation and exhaling or breathing has a more little known definition. This is the definition that involves the cellular level of eukaryotic cells. Cellular respiration may best be described by the following equation: C 6 h 1206+602-6 CO 2+6 H 20+36 ATP. ATP that is the energy needed for a cell to function as part of cellular respiration. ATP is needed to power the cell processes. If cells are denied energy they will die. The second law of therm...
  • Plasmid Extraction Five Minutes
    407 words
    Introduction Chitobiase, from Vibrio harvey i, is a membrane bound lipoprotein involved in the degradation of chitin. Chitobiase is similar to and may share a common ancestry to the a-chain of human b-hexes-aminidase. Chitobiase is encoded by chb. In this experiment, a restriction map for restriction enzymes Eco R 1, Pst 1 and Hind III using Southern hybridization and restriction analysis of pRSG 192. pRSG 192 is a recombinant plasmid derived from the chb gene and pUC 19, a 2. 7 kb engineered pl...
  • Beet Lab Test Tube
    832 words
    MATERIAL AND METHODS Stability of cell membrane using pHF or the lab experiment for testing the stability of beet cell membranes using pH, many materials were used as follows. Obtaining a beet we punch out cores, using a cork borer. After washing the cores we put each one inside a separate test tube, and added a different pH solution in each one. After 3 minutes in these exposure solutions, we took the beet out with a dissecting needle. Then transferred each beet to a separate test tube contain...
  • Fermentation Test Tube
    739 words
    Planning PROBLEM TO BE INVESTIGATED Yeast enzyme specificity: Specificity of Brewers and Bakers yeast enzymes to different sugars (being monosaccharides) HYPOTHESIS I predict Bakers yeast to have a different enzyme specificity compared to Brewers yeast where more CO 2 is produced at 37 0 C. BACKGROUND KNOWLEDGE Fermentation is the breakdown of sugars by bacteria and yeast using a method of respiration without oxygen (anaerobic respiration). It involves a culture of yeast and a solution of sugar,...
  • Nuclear Reactors Fuel Rods
    610 words
    Nuclear Reactors Using a nuclear reactor is an efficient way to produce large amounts of electricity. Nuclear reactors are used to provide power to a neighboring town or city. In a nuclear reactor, water is heated using nuclear energy to the point that it boils and the steam collects around a collection of spinning blades, called a steam turbine. The pressure from the steam turns these blades, which are connected to a dynamo, or generator. The generator is activated and produces electricity, whi...
  • Test Tube Experimental Water Tubes
    5,658 words
    Materials and Methods The first experiment involved examining the effect of temperature on aerobic respiration of germinated pea seeds. The students testing the effect of temperature, will be divided into two groups. The first group is Student Pair A. They will test the effect of 10 C, 20 C and 30 C temperatures on pea respiration rate. The second group is Student Pair B. They will test the effect of 40 C and 70 C temperatures on pea respiration rate. For both groups, the first procedure calls ...
  • Glass Tube Flow Water Rate
    3,768 words
    Hypothesis This investigation starts by investigating the effect of the length of glass tube on the rate of flow of water out of it. The volume per second of the water flowing out of the tube (rate), is determined by the forces acting. The pressure force pushes the fluid through the pipe against the resistance of the viscous force. Therefore I would expect a longer glass tube to create more force opposing the movement of water and therefore produce a slower rate. In this experiment I expect to f...
  • Test Tube Enzyme Catechol Water
    1,374 words
    Lab Report 1 Principles of Biology 1 (BIOL 100) Fall 2001 Gerard Chretien Living cells perform a multitude of chemical reactions very rapidly because of the participation of enzymes. Enzymes are biological catalysts, compounds that speed up a chemical reaction without being used up or altered in the reaction. The material with which the catalysts reacts, called the substrate, is modified during the reaction to form a new product. But because the enzyme itself emerges from the reaction unchanged ...
  • Test Tube Water Thermometer Wire
    492 words
    Question: What is the solubility curve of KNO 3 Prediction: Draw a sketch to show the shape of the curve you expect for the solubility of a typical solid dissolving in water at different temperatures. Plot solubility on the y-axis and temperature on the x-axis. Materials: Large test tube Balance Stirring wire Two-hole stopper to fit the test tube, with a thermometer inserted into one hole 400 mL beaker graduated cylinder or pipette or burette hot plate or Bunsen burner with ring clamps and wire ...
  • Test Tube Put Flame Hcl
    479 words
    I Purpose: Observe chemical reactions and ID reactants and products of the reactions. Classify the reactions and write balanced Equations. II Theoretical Background: A chemical reaction is a what happens to components that causes a physical change. III Hypothesis: You can determine a chemical rxn by the physical change that takes place. IV (A) Equipment: Burner, wood splints, crucible tongs, micro spatula, test tubes 7, test tube holder, test tube rack, sandpaper, evaporating dish, safety goggl...
  • Zinc And Hydrochloric Acid
    448 words
    Zinc and Hydrochloric-Acid Written By Kahlil ZioneDate: 02/02/05 Abstract: We observed the reaction between zinc and hydrochloric acid and recorded it in a table and learned wether the percentage of zinc is effected by the amounts of both substances added to the solution. Introduction The purpose of this experiment is to determine if the amount of zinc and hydrochloric acid will effect the percentage of the zinc in the out coming solution. We are reacting zinc metal with hydrochloric acid to pro...
  • Grahams Gas Law Kinetic Energy
    1,750 words
    GAS LAWS KINETIC ENERGY/ GRAHAM'S LAW LABChemistryBlock 8 April 20 th, 2005 Purpose: To observe how masses of atoms and molecules affect their rate of diffusion, and explain our observations in terms of mass, velocity, kinetic energy and temperature. Warm-up Question: 1. What is the definition of temperature? Temperature is a measure of the average Kinetic Energy of the particles composing a material. 2. What is the definition of diffusion? Diffusion is a spontaneous spreading of particles unti...
  • Fireworks Tube Make Glue
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    Every year, America celebrates many holidays with fireworks. One of the most popular selections is a Roman Candle. If you want to try to make this at home, common pyrotechnics stores have all the supplies you would need. Just think of the "oohs" and "ahhhh's" when you light off your homemade fireworks at home. First of all, you need a sturdy, good tube. The tube should be cylindrical and should be at least 3/32 of an inch thick. The opening at the top of your tube should have a 5/8 inch opening...
  • Test Tube Substance Litmus Paper
    437 words
    What is in each test-tube? What proof do I have of this? Test-tube A: Test-tube A had water in it. I can base this on the fact that it was a neutral, reacting neither to red or blue litmus paper. Phenolphthalein also did not react to this substance. The pH value was 7, neutral, also adding to the proof that this substance was water, because water is neutral. The substance was clear and odorless, and all of these reactions combined led me to my conclusion of substance A being water. Test-tube B:...
  • Gel Filtration Chromatography Fractionation Range
    374 words
    This lab s topic was Gel Filtration Chromatography. Chromatography is a technique used to separate molecules on the basis of differences in size, shape, mass, charge, solubility and absorption properties. A specific kind of chromatography is gel filtration. This technique separates molecules on the basis of their size. This procedure is performed by passing molecules down a solution containing beads made of a polysaccharide or polyacrylamide gel with semi-uniform pores. All of the beads have th...
  • Communication Antenna Inches Outer
    454 words
    A dipole is a balanced antenna and should not be fed directly with coaxial cable. Doing so would cause the outer conductor of the coaxial line to act as part f the antenna, and a large amount of signal would be radiated or received by he outer conductor. For casual reception his may not matter much, but the directional radiation pattern of the antenna is destroyed and reception / transmission results are no longer predictable. In order to derive a balanced feed for the dipole some sort of a tran...
  • Melting Point Compound Solvent Test
    405 words
    Determination of Melting Points of Benzoic Acid and Benzamide and Composition Diagram of Their Mixtures PURPOSE: The purpose of this experiment is to determine the melting point of benzoic acid and benzamide and make a composition diagram for the mixtures of benzoic acid and benzamide to determine the eutectic point of the mixtures. The melting point of the given unknown will be determined using the melting point apparatus. Pure chemicals such as benzoic acid and benzamide alone have a set melti...
  • Test Tube Equilibrium Potassium Chloride
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    Experiment 36 Disturbing Equilibrium Aim: To observe the effect of a change in conditions on a system at equilibrium and explain the effects observed through Le Ch^atelier's principle. Equipment: 5 medium test tubes 1 test-tube rack 1 100-mL beaker 1 250 mL beaker 1 dropper pipet 1 spatula 1 50-mL graduated cylinder 1 white card, to record Materials: Saturated potassium nitrate solution, KNO 3 0. 1 M Iron (III) chloride, FeCl 3 0. 1 M Potassium thiocyanate, KSCN Potassium chloride crystals, KCl ...
  • Investigating Hard And Soft Water
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    INTRODUCTION: Water that contains calcium and magnesium ions is called "hard water" because calcium and magnesium ions can combine with other ions and compounds to leave a hard scale on the surfaces they touch. Hard water may be a troublesome in household water supplies. Fortunately, there are simple solutions to hard water problems. Hard water can be softened by the removal of metallic ions responsible for the hardness. This is known as water softening. Softened water is desirable in the bathtu...