Old Man and the Sea essays

Old Man and the Sea essays In Ernest Hemingways Old man and the sea, Santiago, the books main character, is an old fisherman who is unlucky in the past 84 days. Manolin, his young devoted apprentice and friend, was forced to leave the boat by his parents because Santiago hadnt caught anything for so long. So on the 85th day Santiago decides to go much farther than he has ever gone before, and in doing that he catches an 18-foot marlin, and that is when the adventure begins. In this book Santiago demonstrates the best and the worst in a person through his actions in struggle, defeat, and death, endurance under pain, and pride. In this story Santiago demonstrates his actions under struggle, defeat, and death well when he catches the marlin of a lifetime. When Santiago sets sail for farther out than he has ever been before he didnt realize how big of a marlin he had gotten, he hooked him perfectly but then he started to pull the boat. And for three days the marlin pulled the boat, and for three days Santiago hung in there and didnt let go until he had finished. It was so hard for him to stay there while the fish just keep pulling he struggled to stay alert when the fish would suddenly pull forward. And he struggled while he had no cooked food for himself aboard the skiff, he had to eat raw fish that he caught to stay alive. Santiago almost gave up, he thought that the fish was about to defeat him but then the fish jumped and gave him the chance to pull in the rope and let the marlin fill his are sacks. Then he started to swim in circles and finally he speared the fish right through the heart. These a re some examples of how Santiago acted when under struggle, defeat, and death. During this same time Santiago experienced a lot of pain but he endured it the whole time. When his hand cramped up and he couldnt do anything, he had to endure that until it finally un-cramped and he could work with it again. When the ...

Color Change Chemical Volcano Demonstration

Color Change Chemical Volcano Demonstration There are several chemical volcanoes that are suitable for use as a chemistry lab demonstration. This particular volcano is nice because the chemicals are readily available and may be safely disposed after the eruption. The volcano involves a color change of the lava from purple to orange and back to purple. The chemical volcano can be used to illustrate an acid-base reaction and the use of an acid-base indicator. Color Change Volcano Materials goggles, gloves, and a lab coat or apron600 ml beakertub large enough to accomodate the beaker200 ml water50 ml concentrated HCl (hydrochloric acid)100 g sodium bicarbonate (NaHCO3)bromocresol purple indicator (0.5 g bromocresol purple in 50 ml ethanol) Make the Chemical Volcano Erupt In the beaker, dissolve ~10 grams of sodium bicarbonate in 200 ml of water.Set the beaker in the middle of of the tub, preferably inside a fume hood, since strong acid is used for this demonstration.Add around 20 drops of indicator solution. Bromocresol purple indicator will be orange in the ethanol, but will turn purple when added to the basic sodium bicarbonate solution.Add 50 ml concentrated hydrochloric acid to the purple solution. This will cause the eruption in which the simulated lava turns orange and overflows the beaker.Sprinkle some sodium bicarbonate on the now-acidic solution. The color of the lava will return to purple as the solution becomes more basic.Enough sodium bicarbonate will neutralize the hydrochloric acid, but it is best to handle only the tub and not the beaker. When you are finished with the demonstration, wash the solution down the drain with plenty of water. How the Volcano Works changes color the sodium bicarbonate HCO3- H ↔ H2CO3 ↔ H2O CO2