'Lab 1: Introduction to Science\r'

'Data explanation Table 1: Water step vs. tip Population Dissolved role O| 0| 2| 4| 6| 8| 10| 12| 14| 16| 18| Number of search Observed| 0| 1| 3| 10| 12| 13| 15| 10| 12| 13| 1. What patterns do you observe based on the reading in Table 1? -The more(prenominal) turn type O in the water, the more look for is observed in that nation of water. 2. Develop a surmise relating to the total of dissolved oxygen measured in the water sample and the number of lean observed in the body of water. -If on that point is more dissolved oxygen in the water, there ordain be more look for posture in the part the water sample is taking from. . What would your observational approach be to test this possibility? -I would test the dissolved oxygen in different argonas of water, keep track of the fish in those areas and compare the results. 4. What are the single-handed and dependent variables? -Independent- Dissolved Oxygen -Dependent- Fish 5. What would be your control? -No Control 6 . What type of graphical recordical record would be appropriate for this information set? Why? -A line graph will be appropriate because it supports the theory and provide clear results. 7. Graph the selective information from Table 1: Water flavor vs. Fish Population (found at the offset of this exercise).You may use Excel, then â€Å" preface” the graph, or use another gulp program. You may also draw it neatly by hand and scan your drawing. If you recognize this option, you must insert the scanned jpg image here. 8. realise the selective information from the graph made in Question 7. -The graph above shows the fish population on the Y (axis) and the dissolved oxygen on the X (axis). The fish population increases in the above graph due to more dissolved oxygen that is found in the body of water. For typeface: There is 0 dissolved oxygen (ppm) in the water, so there is 0 fish observed. serve 2: Testable Observations- Determine which of the future(a) observations (A-J) could lead to a testable hypothesis. For those that are testable: bring through a hypothesis and null hypothesis What would be your experimental approach? What are the dependent and independent variables? What is your control? How will you collect your data? How will you present your data (charts, graphs, types)? How will you analyze your data? 1. When a plant is placed on a window sill, it grows three inches quicker per daylight than when it is placed on a coffee table in the optic of the living room. . The teller at the intrust with brown hair and brown look and is taller than the other tellers. 3. When Sally eats level-headed foods and exercises regularly, her blood pressure is 10 points freeze off than when she does not exercise and eats inflamed foods. 4. The Italian restaurant across the thoroughfare closes at 9 pm only if the one two blocks away closes at 10 pm. 5. For the past two age the clouds have come extinct at 3 pm and it has started raining at 3:15 pm. 6. George did not tranquillity at all the night sideline the start of daylight savings. Exercise 3: ConversionFor each of the following, convert each cling to into the designated units. 1. 46,756,790 mg = 46,756,790 kg 2. 5. 6 hours = 20,160 seconds 3. 13. 5 cm = 5. 31 inches 4. 47 °C = 116. 6 °F Exercise 4: Accuracy and Precision †1. During gym class, quad students decided to see if they could beat the average of 45 sit-ups in a minute. The jump student did 64 sit-ups, the second did 69, the thirdly did 65, and the fourth did 67. 2. The average score for the fifth grade math test is 89. 5. The happen 4th graders took the test and scored 89, 93, 91 and 87. 2.Yesterday the temperature was 89 °F, tomorrow it’s supposed to be 88°F and the next day it’s supposed to be 90°F, even though the average for family line is only 75°F degrees! 3. cardinal friends decided to go out and extend horseshoes. They took a picture of their results shown to th e right: 4. A local grocery store was retentivity a contest to see who could roughly closely guess the number of pennies that they had inwardly a large jar. The first six-spot people guessed the numbers racket 735, 209, 390, 300, 1005 and 689. The grocery work said the jar actually contains 568 pennies. Exercise 5: Significant Digits and Scientific NotationPart 1: Determine the number of significant digits in each number and write out the specific significant digits. 1. 405000 6 or 3 2. 0. 0098 2 3. 39. 999999 8 4. 13. 00 4 5. 80,000,089 8 6. 55,430. 00 7 7. 0. 000033 2 8. 620. 03080 8 Part 2: Write the numbers below in scientific notation, incorporating what you bang about significant digits. 1. 70,000,000,000 7 x 1010 2. 0. 000000048 4. 8 x10-8 3. 67,890,000 6. 789 x107 4. 70,500 7. 05 x 104 5. 450,900,800 4. 509008 x 108 6. 0. 009045 9. 0450 x 10-3 7. 0. 023 2. 3 x 10-2\r\n'