any change in width and weight. Question Does water affect the weight and appearance of wood over periods of time? Hypothesis I believe Red Oak will have the most change in weight in saltwater and the most change in appearance will be Pine in saltwater. Materials 1/3 8ft of Red oak 1/3 8ft of Yellow Pine 1/3 8ft of Treated Yellow Pine 1/3 8ft of Cedar 4 ice cream buckets w/ lids Circular Saw Triple beam balance Ruler Rainwater Beach water Procedures 1. Get cedar‚ red oak‚ yellow
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Finding the best quality paper towel Question: Which paper towel has the highest quality overall? Background: Past tests of the highest quality paper towel showed that Bounty was the best choice for a kitchen paper towel. Although it wasn’t the most absorbent‚ which was Brawny‚ it was rather strong in both durability and absorbency. (consumerreports.org) Industrial and 7th generation are most commonly used in public places such as; School bathrooms‚ public restrooms and public sinks
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blood was placed on a slide and numbered it slide #1. Slide #1: 1. With the wooden applicator stick‚ dip the end into the blood and place a tiny drop onto slide #1 and put cover slip over it. Slide#2 1. Place 1 drop of 0.9% NaCl with the drop of blood (use the filter paper to absorb excess liquid). 2. Add a cover-slip and use filter paper to absorb extra liquid (if necessary). 3. Observe cells under 40X then IOOX and then high power (400X). 4. The sheep blood in an isotonic solution Slide#3
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Microbiology Lab Quiz #2 Study Guide Exercise 9 -- The Gram Stain Compare and contrast simple and differential staining techniques. Simple Staining Simple staining is useful in determining the basic morphology of an organism. Simple staining involves only one reagent i.e. crystal violet‚ basic fuchsin‚ or methylene blue. Simple dyes used to stain bacteria have a positive charge cationic (+)‚ therefore‚ they are attracted to the bacteria that are usually negatively charged anionic (-) Depends
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155M Fork 19.8cm 198mm .198M Water Temperature C° Temperature F° Temperature K Hot from tap 38 C° 100.4 F° 311K Boiling 93 C° 199.4 F° 366K Boiling 5 minutes 95 C° 203.0 F° 368K Cold from tap 15 C° 59 F° 288K Ice water 1 minute 8 C° 46.4 F° 281K Ice water 5 minutes 5 C° 41.0 F° 278K Object Estimated mass (g) Actual mass (g) Actual mass (Kg) Mechanical pencil 4g 5.55g .00555kg 3 pennies 9g 8.7g .0087 kg 1 quarter 6g-7g 5.75g .00575 kg 2 quarters‚ 3 dimes 13g 18.3g .0183
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Air Quality Essay – paragraph 2 and 3(body) By Edwin Lin‚ The air quality is deteriorated by humans heavily using fossil fuels to power up automobiles‚ generate electricity‚ and used for many other purposes. Unfortunately‚ fossil fuels are nonrenewable resources‚ and the burning of the fossil fuels releases the pollutants into the air‚ and forms a mixture of fumes with the air. It is called smog. Smog can block the radiant beams of energy from the Sun from entering and exiting the Earth’s atmosphere
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VARIOUS LAB TEST ON CEMENT: Checking of materials is an essential part of civil engineering as the life of structure is dependent on the quality of material used. Following are the tests to be conducted to judge the quality of cement. 1. Fineness 2. Soundness 3. Consistency 4. Initial and Final Setting Time of Cement FINENESS OF CEMENT: We need to determine the fineness of cement by dry sieving as per IS: 4031 (Part 1) – 1996.The principle of this is that we determine the proportion of cement
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PART A 1. Buying a new PC. Low Yat Plaza in Jalan Bukit Bintang is a well-known place for computer sales. Assume that you want to buy a new PC for your personal use. Your task is to: i. Make a list of your hardware and software requirements‚ be as specific as possible. (For software‚ you must at least choose 1 type of operating system and 3 application programs.) HARDWARE * CPU (Central Processing Unit): responsible for handling all instructions it receives from hardware components
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Section 1- Quality of Care STANDARD 1. Safeguarding and Child Protection Children are safeguarded through systems and practices that are consistent with the Regional Child Protection Policies and Procedures. Safeguarding children is afforded the highest priority. To meet Standard1 : “A designated child protection officer must be available at all times during the hours of service provision for contact and consultation with staff
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Water Analysis Lab Report Purpose: In this lab we will be testing a number of water samples. These water samples come from various water sources. Each of these water samples will undergo four different tests. The four tests include a pH test‚ a conductivity test‚ a total and phenolphthalein and alkalinity test‚ and a total hardness test. This lab requires comprehension of lab material and techniques learned in prior labs (Kippenhan‚ 2012). Procedure: Each
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