TEAS Science: Scientific Reasoning (Quiz 1) Welcome to your TEAS Practice Quizzes. Note: We designed Two (2) sets of practice quizzes for this Domain. Each set has 30 questions. TEAS Science (quiz 1): Scientific Reasoning. (30 questions) Please click NEXT to start your Free TEAS Practice Quizzes right away. Best of Luck! 1. A chemist needs to add 5 µL of a reagent to a reaction solution. Which of the following is the best tool to accomplish this? A volumetric flask A micropipette A volumetric pipette A 1-mL pipette None 2. Which of the following is the approximate change in medical school enrollment between the years 1858 and 1861? An increase of 20 No students were enrolled in the medical school during this period. A decrease of 10 A decrease of 200 None 3. Which of the following is the correct volume from the image below? 14.9 mL 15 mL 16 mL 15 kg None 4. Based on this table, which of the following statements is true? Homicide causes more deaths among 35 to 44-year-old adults than heart disease in the same age group. Summed for all age groups, malignant neoplasms are the number one cause of death. Most deaths between ages 10-14 occur due to heart disease. The number of unintentional injuries among 1 to 4-year-old children is greater than the number of unintentional injuries among 5 to 9-year-old young children. None 5. Why is it important to keep most variables constant between experimental and control groups? Keeping most variables constant allows the effects of a single variable to be determined more accurately. Keeping variables constant minimizes research costs. Minimizing changes between groups helps increase the likelihood of proving the hypothesis was correct. Keeping variables the same increases the number of experiments that can be performed so that more data can be gathered. None 6. A study draws the conclusion that obesity is a significant cause of Type 2 diabetes. Which of the following experimental parameters would not build confidence that such a cause and effect relationship is likely true? The inclusion of proper controls Taking in mind all obtained results A large number of data points Use of a small sample size None 7. When studying the effects of sunlight on a person’s mood, scientists asked one group of patients to remain outside for one hour and a control group to remain inside all day. At the end of the experiment, 75% of the group that had received sunlight had a better mood. What can be concluded from these results? People who stayed indoors had a worse mood. Sunlight had no effect on the subjects' moods. Sunlight improved the subjects' moods. There is not enough data to draw a sound conclusion. None 8. Which of the following is an example of empirical data? Remembering you have an appointment at 5 pm Hearing that it is 52 degrees outside Counting the number of eggs in the refrigerator Drinking 2 liters of water None 9. Why are control groups used in experiments? To help scientists quickly perform experiments To increase the amount of data collected To ensure the accuracy of measurements To minimize the effect of variables None 10. Which of the following is necessary to reach a sound conclusion? Experimental data is collected from a complex experiment The data shows the effect of a dependent variable The data must be reported to three decimal places The collected data must be accurate and free from bias None 11. Which of the following would an electron microscope be used to measure? Aquatic samples Insect samples 20-nm polymer films The strength of chemical bonds None 12. Which of the following statements is false? Double-blind experiments have two control variables. The research subjects in single-blind experiments are unaware of the treatment they receive. Double-blind experiments help eliminate researcher bias. Single-blind experiments help reduce patient bias. None 13. Correctly order the following prefixes from smallest to largest: milli, kilo, deci, micro, nano. deci, micro, nano, milli, kilo nano, micro, milli, deci, kilo nano, milli, kilo, deci, micro milli, nano, kilo, deci, micro None 14. When two plants, A and B, were planted together in a field outdoors, plant A produced vegetables, and plant B produced flowers which attracted pollinators. It was noted that when they were grown apart from each other, plant A did not produce vegetables, but plant B still produced flowers. Which of the following is the most likely reason plant A did not produce vegetables when planted away from plant B? The insects that pollinated plant B also pollinated plant A Plant B secreted a hormone that promoted the growth of plant A Plant B shielded plant A from the sun Plant B repelled harmful insects from plant A None 15. Which tool is best suited to measure the length of a bedroom? Tape measure Ruler Surveyor’s wheel Calipers None 16. Which would be the approximate mass of a car? 18 kg 180,000 kg 1,800 kg 180 kg None 17. During a study, scientists noted that people with more self-esteem tend to not be depressed and vice versa. Which of the following types of relationships did they observe? Spontaneous Random A correlation A cause-and-effect relationship None 18. A chemist was performing a spectroscopy experiment on a fluorescent dye to examine the influence of concentration on absorbance. To accomplish this, the chemist created a stock solution of a certain concentration of dye using 10 mL of water (H2O). Then, a serial dilution was performed by taking 1 mL of the stock solution and diluting it with 9 mL of water for a total solution volume of 10 mL. 1 mL was taken from Solution 2 and diluted with 9 mL water to create Solution 3. The serial dilution was performed through Solution 5, as shown in the diagram below. If the dye concentration in Solution 5 was 0.5 g/mL, what was the concentration of the dye in Solution 2? 5,000 g/mL 5 gmL 50 g/mL 500 g/mL None 19. Which of the following statements is true about understanding magnitude when describing relationships? The scale of a graph does not describe a relation between used units A nanometer is larger than a centimeter, and a centimeter is smaller than a kilometer The magnitude of the number represents the strength of the correlation An order of magnitude is a factor of 5 None 20. Choose the best conclusion based upon the following information: Hypothesis: caffeinated beverages reduce the amount of sleep individuals receive. Experimental design: Measure regular amount of sleep. Administer 8 oz. of caffeinated (green tea and coffee) and non-caffeinated beverages (milk and water). Measure amount of sleep after. No conclusion can be drawn Caffeinated beverages reduce the amount of sleep individuals receive Non-caffeinated beverages have no effect on sleep To improve sleep, an individual should drink water None 21. Based on the graph, what can you conclude about the rate of robbery, burglary and theft and unemployment rate? When people have jobs they tend to steal more to ensure extra income. When more people have jobs, there are fewer instances of robbery, burglary, and theft. When people don’t have jobs they tend to engage in different social services in order to get better employment opportunities. Robbery, burglary and theft rates have no correlation between each other. None 22. Which of the following is the most plausible sequence of events? Poaching more rhinos; more export rhino horn goods; more goods with a lower economic value; economy boost Walk in the woods; stung by bee; given morphine; early death Extensive car use; air pollution; less people with asthma; less healthcare expenses Born into musical family; grows up around music; starts learning guitar; plays concert None 23. Which of the following is not an example of empirical data? Hearing that it snowed a lot last night Reading the temperature on a thermometer Weighing yourself Having your doctor measure your blood pressure None 24. Which of the following is the correct order of structures from simple to most complex? Neurons, mitochondria, nerve tissues, brain Mitochondria, neurons, nerve tissues, brain Brain, neurons, mitochondria, nerve tissues Mitochondria, nerve tissues, neurons, brain None 25. A scientist collected the following set of data to examine the effects of exercise on patients’ heart rates. Patients were tasked with running 1 mile everyday for three days in the presence of the scientists. They were required to run the entire mile and were not allowed to walk. At the end of each mile run, the scientists measured the heart rates of the patients. Which of the following conclusions can be drawn from this data? Running increased the heart rates of the patients Patients that ran the mile faster had higher heart rates The patients became fitter with each mile run The patients ran Mile 3 faster than Mile 1 None 26. During which year did the number of dracunculiasis cases first fall below the number of poliomyelitis cases? 2012 2013 2005 2017 None 27. Which of the following is true about SI Units? SI Units are the standard measurement system in science. SI Units are derived from the Imperial System. The SI base units can be broken down into other units. There are 8 SI base units. None 28. Review the data in this table, and then choose the statement that draws the best conclusion? Hours spent sleeping and score on the test correlate negatively with one another There is no correlation between sleep time and test score Hours spent sleeping and score on the test correlate with one another Amount of time spent sleeping is the cause of what test score was received None 29. Dandelions → Snail → Frog → Bird → Fox. Using the food chain above, which of the following terms best describes the trophic level of frogs? Secondary consumer Primary consumer Producer Tertiary consumer None 30. To determine if tap water was making people sick, scientists asked one group of people to drink tap water for a week and another group to drink only bottled water. The results showed that the group that drank the tap water were sick after a week. What can be concluded from this experiment? The tap water caused the sickness. There is not enough information to draw a sound conclusion. The bottled water has curative properties. Tap water is bad for you. None 1 out of 30 Time is Up! Time's up
