Scarlet Fever What is scarlet fever? Scarlet fever is an uncommon infection caused by a type of bacteria called Streptococcus progenies. The disease most commonly presents in children or adults with a ‘strep throat’ infection or tonsillitis‚ followed by the development of a skin rash. Most children will fully recover within a week or so. Deaths from scarlet fever are now extremely rare. How is scarlet fever spread? The bacterium is found in the nose and/or throat of an infected person and
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cylinder‚ water‚ rubbing alcohol and hand soap. A pipette was used to place consistent drops of liquid into a 10 ml graduated cylinder until it was filled to the 10 ml mark. The level was measured at the meniscus‚ bottom of the curve‚ of the liquid and the amount of drops was recorded. Dividing the volume (10 ml) by the amount of drops yields the volume of a single drop. This procedure was completed three times with three separate liquids; water‚ water with detergent and rubbing alcohol. Data from
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2. Equipment was assembled as shown in diagram. (See figure 1.1 on page 2) 3. Welder’s goggles were used to protect the eyes when the magnesium was burning. 4. An 8cm long strip of magnesium was stripped of possible oxidation with a piece of sandpaper or steel wool. A piece of dry paper towel was used to remove any possible residue. 5. Based on the observation table the mass of the crucible with lid was recorded. A piece of magnesium was placed into the crucible with a lid and that mass was recorded
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| |backache)‚ headache‚ shivers‚ loss of appetite‚ nausea or |The first sign of the rash is red blotches‚ which turn into a | |vomiting. |fine pink-red rash that feels like sandpaper to touch and looks | |The second phase is the ‘toxic’ phase where about 15% are |like sunburn. | |affected. The patient rapidly develops jaundice and complains of|It may start in one place
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Procedure Materials Apparatus Reagents Beakers (250-mL) Safety Goggles Copper (II) Sulfate Wash Bottle Lab Apron 2 Iron Nail Stirring Rod Plastic Gloves 1M Hydrochloric Acid Crucible Tongs Sandpaper or Emery Cloth Distilled Water Centigram Balance Face Shield Drying Oven 1. Find the mass of a clean‚ empty‚ dry 250-mL beaker. Record the mass to the nearest 0.01 g. 2. Add approximately 8 g of copper (II) sulfate crystals to the beaker
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Liberty University’s Standard Instructions ** TEACH IT‚ PRACTICE IT‚ TEST IT! ** Lesson Plan #__: __________ |Teacher Candidate: xxx |Course: xxx | |LESSON PREPARATION [before the lesson] | |Topic: 5 Senses |Concept: Smell
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1. Colour Fastness to Light This method is intended for accessing the resistance of the colour of textiles to the action of daylight. Principle: A specimen of the textile is exposed to the light from a Xenon arc lamp under prescribed conditions‚ along with eight dyed wool standards. The fastness is assessed by compared the fading of the textile with that of the standards. Apparatus and Materials: - Blue standards - Humidity Test Control Fabric - Light fastness test apparatus containing
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Friction Friction Abstract Students learn the principles of friction by demonstrating the effect weight‚ angle and gravity on the speed of movement of objects. of Equipment 1. Friction Boards 2. Weights 3. Velcro Ball Game 4. Drill 5. ¾” Dowels 6. Rope 7. 3 x 8’ Flat Board 8. Styrofoam Boards 9. Bucket 10. Beer Glass 11. Decorations for Tortoise 12. Hairspray 13. Bennie Beads 14. Velcro 15. Hand Held Lenses 16. Drill Board Grade Level This activity is suitable for Middle and High School
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will stay on the lathe and not shake loose. After everything on the lathe was ready to go‚ we turned the lathe on and used the round nose to round the whole piece of wood into a cylinder. Once we had the wood down to the correct diameter‚ we took sandpaper and sanded down the wood while it was spinning on the lathe to get rid of the any ridges so that it was round and smooth. Now that the spindle was rounded off and smooth‚ we started on making the beads. Before we made the beads‚ we first had to use
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nearly its entirety. Another demonstration of creative thinking is with a company like 3M. Dick Drew‚ an inventor for 3M at one time‚ was working on perfecting his masking tape. When told to stop by his management and return to improving wet-dry sandpaper‚ he ignored his boss and continued on. (Michalko‚ 2007)Through Dick Drew’s ingenuity and due diligence‚ he believed in what he could do‚ and as a result 3M emerged from a near failed company to one of the greatest success stories in economic history
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