Measuring cylinder Weighing boat Thermometer 0C Polystyrene cup and lid with hole Risk Assessment: Irritant to skin and eyes – wear gloves and goggles and labcoat Heating/Ignition source may cause violent combustion/explosion – keep away from naked flames Context We can use the results from this experiment to find out the optimum mass of ammonium nitrate for use in cool packs. This reaction is endothermic; we may be able to use this for other cooling purposes in the future. (?)Hypothesis: I predict
Premium
Practice Final Exam Eng-092 Part 1: In this section of the final exam‚ you will be asked questions about Active Reading Strategies. You will need to know the definitions of each one in order to answer the questions on the final exam. As a way of preparing‚ test your knowledge of each strategy by defining or describing each one in the space below. Prediction – making educated guesses; guessing about thoughts‚ events‚ outcomes‚ and conclusions. Predictions are confirmed or denied‚ and the reader
Premium Hamburger Fast food
retrieved. Once the test tube is retrieved‚ a steak for isolation will be completed in order to produce isolated colonies of the organism on an agar plate. The unknown test tube with the bacteria is flame sterilized using a Bunsen burner. Once the bacterium test tube has been flame sterilized‚ a flame sterilized inoculating loop will be used to gather
Premium Bacteria Microbiology Gram staining
INVESTIGATORY PROJECT ABSTRACT: Adding oil to candle wax would soften it. The wax would melt at a lower temperature and the candle would drip more and burn down faster. The flame would also be larger than a flame on a candle with hard wax. Also‚ the flame would produce more soot and there would probably be an odor from whatever was cooked in the oil before it was used in the candle. Results of the tests showed that the candle made from 100 percent paraffin wax had the lowest melting rate‚ lowest
Premium Petroleum Hydrocarbon
One possible source of scientific error that could be present in the experiment is that when placing the aluminum foil onto the center of the pan‚ the flame under foil in centered only at the centered. The unknown substances are placed around the side of the aluminum foil‚ only allowing the flame’s heat to hit the center of the aluminum foil and the area around it. This possible source of error may have affected the outcomes of the experiment because the unknown substances present on the foil may
Premium
For as yet scientifically unknown reasons‚ times occur when an unsuspecting person can just burst into flames and be incinerated. This is referred to in the scientific world as Spontaneous Human Combustion or SHC. There are many documented cases throughout history. The earliest cases go as far back as the early 16th century. Then there are the ones that are as recent as 1998 but have no better explanation of what happen then the ones in the 16th century did. There are truly only two types of
Premium Fire Nuclear weapon Combustion
small faces of the children…Never shall I forget those flames…Never shall I forget the nocturnal silence…Never shall I forget those moments that murdered my God…Never shall I forget those things…Never.” (Wiesel 34)2)”Fire! I see a fire! I see a fire!..Look! Look at this fire! This terrible fire!..Fire! I see a fire!..Look at the fire! Look at the flames!..Look at the fire! Look at the flames!..Jews‚ look! Look at the fire! Look at the flames!” (Wiesel 24-28)3)”Blessed be the Almighty…Blessed be
Premium Elie Wiesel The Holocaust Auschwitz concentration camp
simoniacs; clergymen that sold ecclesiastical preferment and/or offices to members of the Catholic Church in return for money and material goods. In the Third Pouch‚ these men are hung by their feet in pits of darkness while their feet are charred by the flames of fires above them. This punishment reflects Dante’s abhorrence for simoniacs‚ whom he considers to be unethical‚ avaricious‚ and inconsiderate of the souls that they have condemned to Hell. Dante’s description of the punishment that these fraudulent
Premium Inferno Divine Comedy Dante Alighieri
Part One (Flame Test): 1. Create and complete a data table for Part One of the lab. It should include the name of the element (or unknown) examined and the color of the observed flame Solution Name Color description 1 Barium Lime green 2 Calcium Red 3 Sodium Yellow 4 Rubidium Purple 5 6 Potassium Lithium Blue Pink Unknown 1 Sodium Yellow Unknown 2 Potassium Blue 2. Identify each unknown from Part One of the lab and briefly explain why you identified each unknown as you did. Unknown 1 was sodium
Premium Color Green Purple
events in shaping the modern day industry. The LZ-129 Hindenburg‚ a passenger zeppelin (or more commonly referred to as a blimp)‚ tragically crashed on Thursday‚ May 6‚ 1937‚ resulting in 36 casualties. In an instant the Hindenburg was engulfed in flames resulting in people’s lives‚ this disaster is still to this day one of the most influential events in aviation history. The LZ-129 Hindenburg was a German passenger zeppelin manufactured by “Luftschiffbau Zeppelin G.m.b.H.” (Dan Grossman‚ "LZ-129
Premium World War II Al-Qaeda September 11 attacks