Salt and Its Uses As we know‚ salt is the most useful resource found on earth. In Ancient Rome‚ salt was used as part of the salary to the soldiers. From this‚ we can see that salt was as valuable as gold in the past. In our daily life‚ besides making nutritious food more palatable‚ salt is very useful in making bakery products‚ canned and frozen foods. Salt is a good preservative that retards the growth of micro-organisms to make food storage possible for a long period of timie
Premium Hypertension Potassium Sodium chloride
sample remains frozen. When the temperature reaches 0°C (the melting point of water)‚ the ice begins to melt. Because melting is an endothermic process‚ the heat we add at 0°C is used to convert ice to water and the temperature remains constant until all the ice has melted. Once we reach this point‚ any further addition of heat causes the temperature of the liquid water to increase. You observed a phase change process for ice (solid water) being melted‚ heated and then boiled in class. A graph of the temperature
Premium Thermodynamics Water Heat
campaign of nonviolent protest against the British salt tax in colonial India which began with the Salt March to Dandi on March 12‚ 1930. It was the most significant organized challenge to British authority since the Non-cooperation movement of 1920-22‚ and the Purna Swaraj declaration of independence by the Indian National Congress on December 31‚ 1929. Mahatma Gandhi led the Dandi march from his Sabarmati Ashram to Dandi‚ Gujarat to produce salt without paying the tax‚ with growing numbers of Indians
Premium Indian independence movement Salt Satyagraha Mohandas Karamchand Gandhi
conclusion‚ the experiment was about the effect of soapy water on plants. The hypothesis was‚ “If plant A is given 10 ml of plain tap water every other day for two weeks and plant B is given 10 ml of soapy water (5 ml softsoap and 5 ml plain water) for the same amount of time then‚ plant A will grow at least 3.0 cm taller than plant B.” The Hypothesis was supported. Plant A grew 13.6 cm while Plant B grew only 5.2 cm. The Independent variable was water‚ food‚ plastic cup‚ sunlight and soapy water. The Dependent
Premium Water Water cycle
Salt Pollution As awareness for pollution increases‚ other forms of pollution are defined. Almost everyone knows about toxic waste and carbon dioxide pollution‚ but not many people have heard of salt pollution. Salt pollution has been on the increase since the evolution of the automobile. With more pressure on government agencies to keep the highway clear and safe‚ an increase in the use of salt has developed. It is important to understand why salt is used and how it work as well as the environmental
Premium Water Salt Sodium chloride
The Effect of Cold Water on Goldfishes Research has shown there is a higher respiration rate in goldfishes when placed in cold water. There are many different varieties of fishes that can adjust to different atmospheres but the most common household fish that can is the goldfish. The goldfishes identified as the Carassius auratus was one of original fishes to be domesticated by China a thousand years ago in addition there are more than 100 goldfishes but only 20 are sold today. Common goldfishes
Premium Shark Fish Goldfish
standardized tests? We designed an experiment which would put an answer to this question. The experiment tests the spectrum of standardized test scores of those who ate breakfast versus the scores of those who ate nothing. This experiment would be a single blind study because the scientists would not be biased therefore they would have no reason to alter the test results; it is a purely research type experiment. There would be two groups involved in the experiment- the experimental group‚ which would
Premium Standardized test Experiment Psychometrics
Aim To investigate the effects of increasing salinity on potato cell mass. Background Information This experiment is based upon osmosis. Osmosis can be defined as the net movement of water molecules from a region with high concentration to a region with low concentration. This movement must take place across a partially permeable membrane such as a cell wall‚ which lets smaller molecules such as water through but does not allow bigger molecules to pass through. This process will take place until
Premium Osmosis Concentration Water
ethanol from alcoholic beverages‚ such as vodka‚ involves the process of distillation. Distillation is the separation of volatile substances mixed with nonvolatile substances by boiling the mixture to alter the phase of the volatile substance. The researchers used the simple distillation set up to conduct the experiment. 25 ml of The Bar Vodka was used and 7 ml of distillate was collected before a temperature of 95 degrees Celsius was reached. Collected distillate was then subjected to a flammability
Premium Distillation Boiling point Ethanol
The Boiling Frog Theory on Population Systems thinkers have given us a useful metaphor for a certain kind of human behavior in the phenomenon of the boiled frog. The phenomenon is this. If you drop a frog in a pot of boiling water‚ it will of course frantically try to clamber out. But if you place it gently in a pot of tepid water and turn the heat on low‚ it will float there quite placidly. As the water gradually heats up‚ the frog will sink into a tranquil stupor‚ exactly like one of us in a
Premium Integers Million Roman numerals