Lab 1 – Introduction to Science Exercise 1: The Scientific Method Dissolved oxygen is oxygen that is trapped in a fluid, such as water. Since many living organisms require 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 and then answer the questions below. QUESTIONS 1.
Lab 1 – Introduction to Science Exercise 1: The Scientific Method 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.
If necessary, round the result to the nearest tenth. 38) 39) How many liters of 80% hydrochloric acid must be mixed with 40% hydrochloric acid to get 15 liters of 65% hydrochloric acid? Write your answer rounded to three decimals. 39) 40) If (9, -9) is the endpoint of a line segment, and (12, -10) is its midpoint, find the other endpoint. 40) 41) It has been determined that the number of fish f(t) that can be caught in t minutes in a certain pond using a certain bait is f(t) = 0.22t + 1, for t > 10.
BJ restaurants 6th week BJ restaurant increase by 20 % after report from the company are planning to expand 10-12 % annually, also earn share would approximately double in 2016(.8- 1.6 per share) as he share close at 24 .228 BEKO 6th week: Beko there was no change this week. 3. Netflix 6th week: This week share were down by 15 dollar to 315.6 as there have been reports to sate Netflix share are flow to high to maintain it Value as well as cost of going global. 4. Sony 6th week Sony had slight decrease in sales in TVs and PCs on the previous quarter as share close at 12.677 5.
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.
Construct a hypothesis – Based on your observation in question 1 and your background research in question 2, develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water? Answer = I would test the dissolved oxygen in different areas of water, keep track of the fish in those areas and compare the results. 4. Test with an experiment – Describe an experiment that would allow you to test your hypothesis from question 3. This description must provide ample detail to show knowledge of experimental design and should list the independent and dependent variables, as well as your control.
"The campaign, 'Rethink Your Drink,' takes aim at sugary drinks like soda, sports drinks and fake ‘juices’.” A 2012 survey of over 600 Hawaii teenagers revealed that 93 percent reported consuming sugary drinks every week, and 48 percent said they had a sugary drink every day. (Twenty-seven percent of teenagers and over half of adults in Hawaii are overweight or obese.)" Led by the Department of Health, Hawaii hopes to reach out to 100% of its teenagers to educate about the sugary drinks being consumed. In the effort to teach as opposed to restrict, this campaign has shown a greater decline in obesity rates. The secret is using a 'gross' method which depicts teenagers drinking bottles of lard with fat flowing down their faces.
New Mexico’s people use water to their advantage by expecting more to come. Understanding the difference between how the water retrieves itself proves that the amount of water being used is remarkably high. As Bruce Selcraig states “Albuquerque receives’ their water by an aquifer that led the public officials to believe it sat atop an underground Lake Superior but it was perpetually replenished underground by the Rio Grande (173)”. It had left the officials questioning about the amount of water that they thought was really there. Test showed the underground water basin had dropped by as much as 40 feet between 1989 and 1992 and nearly 140 feet in some places over the past three decades (174).
CHM130 Lab 1 SAFETY, EQUIPMENT, AND THE SCIENTIFIC METHOD Name: Tammy Pechac A student enters their laboratory setting and is getting ready to set up. What preparations should be made? (16 points) As a lab student I should be aware of my goal and reason for being in the lab, use my common sense, follow safety measures carefully and ask questions about things I am not sure of to avoid injury or compromising the lab exercise. I should be sure I have all necessary items to perform my experiment before beginning the lab to avoid leaving anything unattended. I should locate fire extinguishers, eyewash stations, phones, showers, and fire alarms and all other safety devices in the lab in case of trouble.
Over the years, the silt has been collecting in Lake Mead, the nation’s largest reservoir, and it is predicted that over the next few hundred years this lake will fill up with silt. This could threaten the entire Colorado River reservoir system. Just in the past 10 years, Lake Mead’s water levels have dropped by more than 100 feet and the basin is only half full. Something needs to be done to stop the trends and even