easier to compare your results if the paper is rectangle. So‚ your first task is to cut the coffee filter into a rectangle measuring three cm by nine cm. You will need two of these strips to complete the lab. 2. Using a pencil (do not use a pen)‚ draw a line one cm (1/2 inch) from the edge of one end of one strip of paper. 3. Make four pencil dots (one for each marker you will be examining) along this line‚ about 0.5 cm (1/4 inch) apart. Underneath each dot‚ label the marker that will
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Introduction: In this experiment‚ when vinyl strip and acetate strip is rubbed by tissue‚ it will charge the vinyl strip negatively and acetate strip positively caused by the transfer of electron between the strip and tissue. If molecules have non zero bond dipole‚ because polar molecule must have a non-zero molecular dipole where electron spend more of their time closer to one atomic nucleus than the other and make one end partially positive or negative than the other end. Different charge will
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Thermometers: Understand the options Thermometers come in a variety of styles. Understand the different types of thermometers and how to pick the right thermometer for you.By Mayo Clinic Staff Choosing the thermometer that’s best for your family can be confusing. Here’s what you need to know about the most common thermometers. Digital thermometers Regular digital thermometers‚ which use electronic heat sensors to record body temperature‚ can be used in the rectum‚ mouth or armpit. The most accurate
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Modern-Surface Mining When coal seams are near the surface‚ it may be economical to extract the coal using open cut (also referred to as open cast‚ open pit‚ or strip) mining methods. Open cast coal mining recovers a greater proportion of the coal deposit than underground methods‚ as more of the coal seams in the strata may be exploited. Large Open Cast mines can cover an area of many square kilometers and use very large pieces of equipment. This equipment can include the following: Draglines which
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Chemistry Assignment Name : Lorna Ng Xin Mei Student ID : 1000620 Group Members’ Name: Sim Koshin Chen Chui Ting Bhindia Pooja Rayel Title : Paper Chromatography Photochemical Smog Lecturer’s Name : Ms. Usha Nanthini Table of Content No. | Content | page | 1. | Paper Chromatography | | | 1.1 Definition | | | 1.2 Background | | | 1.3 Rf Values | | | 1.4 Principles of Paper Chromatography | | | 1.5 Procedure
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As a potential teacher you should have the mindset and the ability to see outside of the box and incorporate such things in the classroom that you may not expect. Literacy and math together is a great way to teach students two crucial subjects in one lesson. A common way to do so is to integrate literature by using a trade book at the introduction or conclusion of a mathematical lesson. For example by reading the book "Beep Beep‚ Vroom Vroom!" by Stuart J. Murphy‚ taught in a first grade classroom
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with static electricity. 3. Experimental Setup - The apparatus used in this experiment included: an electroscope chamber with suspended sphere and top cover‚ 2 guide blocks with spheres‚ cotton and wool squares‚ plastic rods‚ and a white vinyl strip. It is crudely drawn below. Figure 1 - Electroscope Setup 4. Procedures Part 1 - Charging a Sphere 1. Began by removing the right side guide block and setting it
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15% of the market share and brought in $60 million in the first six month. The new method of loading cartridge for the MACH3 is much easier; the blade edge’s material is thinner‚ three times stronger than stainless steel‚ and lasts much longer. The strip color-fading feature is great because it alert users when they need to change out the blades‚ which is very helpful; customers won’t have to waste money replacing new blades too soon and avoid having uncomfortable shaving experience due to old blades
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substance. Procedure: 1. Cut 3 strips of coffee filter. Be sure that the strips are much narrower and slightly taller than the drinking glasses. 2. In the center the strips‚ about 3 cm from one end‚ place a dot of the marker to be tested. The dots should be about 0.2 cm in diameter and dark enough to be clearly visible. 3. Place about 2 cm of water in each glass. 4. Tape the unmarked end of each strip to the center of a pencil so that the strip hangs down when the pencil is held horizontally
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three legs even after the electrodes were placed. Immerse the double U-tube in a 4L beaker filled with water up to approximately 2cm below the lateral connecting tubes. Measure the weight of the copper strips. These strips will serve as the cathode and anode of the coulometer. Immersed the strips on a 250ml beaker filled with H2SO4 / 0.5M CuSO4 solution. Connect the coulometer‚ transference vessel and the multimeter in series; connect the power supply with the connection cables. Wait for 60 to 90
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