What Is This Essay

846 WordsJun 22, 20134 Pages
Lab 1 - Exercise 1: Data Interpretation Dissolved oxygen is oxygen that is trapped in a fluid, such as water. Since many living organism requires oxygen to survive, it is a necessary component of water systems such as streams, lakes and rivers in order to support aquatic life. The dissolved oxygen is measured in units of parts per million (ppm). Examine the data in Table 4 showing the amount of dissolved oxygen present and the number of fish observed in the body of water the sample was taken from; finally, answer the questions below. Questions 1. What patterns do you observe based on the information in Table 4? As the Dissolved oxygen increases so does the number of fish that are observed, until the ppm gets up to 14 then the…show more content…
The lines would start by going up until it gets to 12 then would begin to bounce around from increase to decrease. 8. Interpret the data from the graph made in Question 7. The increase of oxygen does not necessarily mean the fish will keep up with it. Too much oxygen can be harmful to the fish so you would need a certain amount per area of fish. A constant flow of oxygen going throughout the water habitat. Lab 1 - Exercise 2: Percentage Error In the questions below, determine the percentage error. Show your work on all problems. 1. A dad holds five coins in his hand. He tells his son that if he can guess the amount of money he is holding within 5% error he can have the money. The son guesses that he is holding 81 cents. The dad opens his hand and displays 90 cents. Did the son guess close enough to receive the money from his father? 0.81 - 0.90 x 100% 0.90 0.09 x100% 0.90 0.1x100% = 0.9% He does get close enough 2. A science teacher tells her class that their final project requires the students to measure a specific variable and determine the velocity of a car with no more than 2.50% error. Jennifer and Johnny work hard and decide the velocity of the car is 34.87 m/s. The teacher informs them that the actual velocity is 34.15 m/s. Will Jennifer and Johnny pass their final project? 34.87 – 34.15 x100% 34.15 34.87 – 34.15 = 0.72