Scientific Method free essay sample

Based on the information in Table 2, it seems that the more dissolved oxygen in the water there is the higher the population of fish is. 2. If the ppm of dissolved oxygen is increased in water then there will be more fish observed. 3. The experimental approach to test this hypothesis would be to have two separate bodies of water, one with a set ppm of dissolved oxygen and another with an increasing amount of dissolved oxygen. 4. The Independent variable is the dissolved oxygen and the dependent variable is the number of fish observed. 5. The control is the fish. The most appropriate graph for this data set would be a line graph because it showcases trends and findings within the trends. 7. 8. As the quality of the water rises with the increase of dissolved oxygen, the fish population, too, surges. Exercise 2 1. Hypothesis- A plant sitting on a window sill will grow faster as opposed to a plant sitting in the middle of the living room on a coffee table. We will write a custom essay sample on Scientific Method or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Null Hypothesis- There is no difference in where a plant is placed, it will grow at the same rate whether it be sitting in the middle of the room or a window sill. My experimental approach would be to place two plants one on the windowsill and the other on the coffee table and measure the growth every week. Independent variable- The placement of the plant. Dependent variable- Growth rate of the plant. Control- The plant. I will collect my data weekly by measuring any noticeable growth in each plant. The best way to present this data would be a line graph. I will analyze the data by looking for any difference in growth between the two plants. 2. No testable observation 3. Hypothesis- Fishing at 7 o’clock in the morning yields more fish than at noon. Null Hypothesis- Fishing earlier in the morning has no bearing on the amount of fish you catch. The experimental approach would be to fish at both times for a week and record the results. Dependent variable- Amount of fish caught. Independent variable- time of day. Control- fish The data will be collected everyday at 7 o’clock and noon by counting the amount of fish caught at each time. The most appropriate graph would be a bar graph. I will analyze the data by looking for a trend in the amount of fish caught in the morning vs at noon. 4. No testable observation 5. Hypothesis- eating healthy and exercising lowers blood pressure. Null Hypothesis- Blood pressure levels are not affected by eating fatty foods or healthy foods and exercise. The experimental approach would be to check blood pressure levels after eating fatty foods and after eating healthy foods and exercising. Dependent variable- Blood pressure levels. Independent variable- fatty/healthy foods and exercising. Control- Sally The data will be collected by testing the blood pressure levels daily after eating fatty foods and healthy exercise. The most appropriate way to present the data would be by a table. The data will be analyzed for any illustrations that indicate a relationship between healthy eating and exercise and lower blood pressure levels. 6. No testable observation 7. No testable observation 8. No testable observation 9. No testable observation 10. Hypothesis- Ice cream melts faster in warm weather vs cold weather. Null Hypothesis- weather has no bearing on ice cream melting. Taking ice cream outside on a warm day and then on a cold to see if warm weather affects the melting of ice cream would be the experimental approach. Dependable variable- Ice cream melting fast or slow. Independent variable- weather. Control- Ice cream Data will be collected when the days are warm and cold. Best graph for this experiment would be a table. I will analyze the date by looking at the time it took to melt the ice cream on a warm day vs a cold day. 11. One way to apply the scientific method to an everyday problem would be to see if gasoline prices are cheaper during the week. Hypothesis- Gas prices are cheaper during the week. Null Hypothesis- The day of the week does not affect gas prices. The experimental approach would be to observe gas prices during the week and the weekend for a month. Dependable variable- Gas price. Independent Variable- day of the week. Control- Regular Gasoline Data would be collected at the nearest gas station. The best graph would be a bar graph I would analyze the gas prices during the week and the end of the week to see any trend that shows that the hypothesis is true. Scientific method free essay sample Do we start thinking of some type of formal process that will answer all our scientific questions or problems. When I was in school many years ago, we were taught that scientists go through a series of steps to find a solution to a problem or find evidence to support or disprove a theory. It all seemed rather cold, and formal. Going back to school, school has taught me that science has undergone significant changes and has moved away from the rigidity of a fixed series of steps in what was formerly called the scientific method. The Scientific Method Geophysicists opposed his suggestion that the continents glide across the ocean floor, asserting that the ocean floor did not contain adequate power to hold the continents and moreover considerable frictional opposition would transpire (Nelson, 2003). In the 1950s and in the 1960s, reports of the Planets magnetic field and in what way it varied across time, a study known as, presented different support that would confirm that the continents do definitely move (Nelson, 2003). We will write a custom essay sample on Scientific method or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The method by which an expert discovers clarification to an occurrence is named the scientific method. Tracing the Scientific Method After the experiment, any findings should be analyzed to decide whether the hypothesis was correct, incorrect, or somewhere in-between. In this experiment, which was reported in the Journal of Agricultural and Food Chemistry (Yamauchi et al, 2010), the researchers sought to find out what relationship, if any, coffee had upon the development of diabetes. Previous studies had indicated that coffee might be of use to ward off the development of diabetes in humans. The scientists behind this experiment wanted to investigate this possibility in a more focused study than had been previously done.: Scientific Research Scientific Method free essay sample Ruben wants to determine if listening to different types of music will have an effect on a persons pulse. His hypothesis states that if a person listens to rap music, their pulse will increase more than if they listen to other types of music. Ruben takes each participants pulse before, during, and after listening to 30 minutes of music. He has his mother listen to rock music, his sister listen to classical music, and his friend listen to rap music. From the data collected, he determined that rap music raises a persons pulse the most. Halls independent variables would be the type of music and his dependent variables are the mom, sister and friend. 2. Something that could change the hypothesis Is If he played specific songs or If he switched the genres for his mom, sister and friend. The changes would be an Improvement because It will test the effects of the type of music the person enjoys more. We will write a custom essay sample on Scientific Method or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page My experiment will be on which type of whistle will the dog react most with? The types of whistle I will use are a sliding whistle, a dog whistle, and a regular whistle.One hypothesis is that the dog will react more to the dog whistle because of its high pitch that irritates the dog, another is that it will run from the sound of the regular whistle because it is too loud. The independent variables are the whistles and the dependent is the dog. I will start with the sliding, then the dog then the regular whistle. Sliding whistle: no reaction Dog whistle: ran away whining Regular whistle: ran away barking In conclusion my hypothesis were correct the dog and regular whistle had the most affect on the dog.