dozens of voltage-carrying wires and circuits. Any one of these can reach out and bite an unwary tech—sometimes with deadly effect. Finally‚ you should appreciate that all PCs and PC components have a finite service life. Where do old monitors‚ batteries‚ and toner cartridges go to die? This chapter covers the important cleaning and maintenance routines that you should follow to keep your system in optimal running condition. These routines take you into the very guts of your PC‚ so to prevent damage
Premium Uninterruptible power supply
WESTFIELD Science-Oriented School and Colleges CERTIFICATION OF THE PROJECT This is to certify that we have read the individual project entitled MAKING ELECTRICITY FROM SALTWATER AND AIR The researcher has successfully completed and defended his Science Project before a panel Recommendation: [ ] Approved [ ] Passed with revision [ ] Redefense Sir Jonathan Paulino Sir Joebert Angeles Member of
Premium Energy development Battery Incandescent light bulb
Brief Summary of Methodologies Then the research methods must(a) outline the design and present a timeline‚ (b) describe participant selection and recruitment‚ (c) explain the procedures for assignment to condition and methods for experimental control‚ (d) describe the independent variable‚ the intervention‚ (e) present the dependent variables or measures‚ (f) discuss data collection and management procedures‚ (g) provide the data analysis strategy‚ including a power analysis‚ if appropriate‚ and (h)
Premium Battery Research Rechargeable battery
* 6 small toothpicks for stirring each powder * 6 white powders: icing sugar‚ cornstarch‚ Aspirin powder‚ baking soda‚ baking powder‚ and the mystery powder * Scoopula * Test solutions in dropper bottles: water‚ universal indicator‚ vinegar‚ and iodine solution
Premium Starch Water Sodium bicarbonate
If you are looking for instructions about building a lemon battery to light an LED‚ see Lemon Battery at Wikibooks. The lemon battery is a simple type of electrical battery that is commonly made for school science projects because it illustrates a battery’s main components. Typically‚ a piece of zinc metal and a piece of copper metal are inserted into a lemon. Everyday objects such as galvanized nails and copper pennies can be used for the zinc and for the copper. A single lemon is usually studied
Premium Battery Zinc Hydrogen
ACIDS USES acetic acid food preservation and preparation‚ when in solution with water it is known as vinegar acetylsalicylic acid pain relief‚ fever relief‚ to reduce inflammation‚ known as aspirin ascorbic acid antioxidant‚ vitamin‚ also called vitamin C Carbonic acid carbonated drinks‚ involved in cave stalactite and stalagmite formation and acid rain Hydrochloric acid digestion as gastric juice in stomach‚ to clean steal in a process known as pickling‚ commonly called muriatic
Premium Sulfuric acid Acid Acid dissociation constant
very good indicator. Acids and alkalis Acids have a sour taste‚ like vinegar (which contains ethanoic acid) and lemons (which contain citric acid). Alkalis are substances that react with acids and neutralise them. Soap and washing powder are alkaline. Acids and alkalis are found in a surprising number of places. Some are edible and are found in foods. Others are very strong and can be harmful‚ such as the acid in car batteries and the alkali in oven cleaners. Our experiment First we had to extract
Premium Base PH Acid
in the lesson. Whenever possible‚ list the product/item and the formula or name of the acid or base. Acids Item Formula/Name of Acid Characteristics that indicate it is an acid 1. battery Sulfuric acid React with metal 2. lemon Citric acid sour 3 milk Lactic acid Produce hydrogen ions when dissolved in water 4.vinegar Acetic acid Stings when in contact with cell membranes 5. orange Citric acid Sour Bases Item Formula/Name of Base Characteristics that indicate it is a base 1. soap Potassium hydroxide
Free Acid Base Sodium hydroxide
bags for the disposal of contaminated materials Scissors and tweezers Syringe‚ medicine cup or spoon Soap or instant hand sanitizer Instant cold packs Antiseptic solution or towelettes Medication: Sanitizing liquid (examples: hydrogen peroxide‚ vinegar‚ hand sanitizer) Antibiotic ointment Petroleum jelly or other lubricant Sterile eyewash‚ such as a saline solution Over-the-counter hydro-cortisone cream
Premium First aid
structure of matter. Essentially‚ chemistry is the science of examining substances and objects to find out what they’re made of and how the react to different conditions. All projects Accelerate Rusting To demonstrate how a chemical reaction from vinegar‚ water‚ and bleach can accelerate the rusting process of steel. Acids And Bases To determine which chemicals are acids and which are bases. Apple Mummy To create a mummified apple by removing the moisture from the apple and preventing bacteria
Premium Water Chemistry Chemical reaction