Practice Quiz

Praxis II General Science: Content Knowledge Exam Prep - Question List

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106.
Following an outdoor field trip, a student reports to the teacher that he has a tick imbedded in his skin. The appropriate procedure for the teacher to follow upon discovering the imbedded tick is to:
  1. Have the student call his parents to inform them that he has possibly contracted Lyme disease.
  2. Leave the tick alone and inform the student that he needs to visit his doctor as soon as possible.
  3. Have the school nurse remove the tick from the student immediately and save it for identification.
  4. Encourage the student to remove the tick himself and report the matter to his parents.
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107.
Before using a pH meter to determine the pH of a water sample, it is important to do which of the following to ensure the resulting reading will be accurate?
  1. The sample should be refrigerated in a sealed container.
  2. The meter should be calibrated with a buffer solution.
  3. The sample should be filtered to remove any organic matter.
  4. The meter should be allowed to warm up.
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108.
Which of the following would be an appropriate use of global positioning system (GPS) technology?
  1. Monitoring the motion and development of a storm system.
  2. Locating the latitude and longitude of a geologic outcrop in the field.
  3. Estimating the percent of land area covered in forest vegetation.
  4. Calculating the moisture content of soil over a large geographic area.
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109.
Which of the following is the best example of using a physical model to understand a complex natural system?
  1. Paleontologists reconstruct the habitat of an extinct fossilized animal by examining the type of rock in which the animal was found and the associated plant fossils.
  2. Meteorologists use historical data correlating sunspot cycles with short-term temperature changes to predict winter weather several years in advance.
  3. Geologists measure changes in the speed and direction of seismic waves produced by explosions or earthquakes to locate deposits of oil and natural gas.
  4. Oceanographers study damage produced when 25 cm waves are generated in a scaled- down replica of San Francisco Bay to assess how a tsunami might affect the region.
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110.
A scientist collects 50 years of temperature data from the Midwest that show a steady increase in daytime summer temperatures. Which of the following is the best way for the scientist to use these data to make predictions about how the average temperatures may increase in the coming years?
  1. Plot the data set and extend the line of best fit into the coming years.
  2. Take the median of the data set and add that to the average temperature for each coming year.
  3. Determine the range of the data set and assume any future increases will be within that range.
  4. Calculate the total change over time in the data set and assume it reflects the minimum increase in the future.
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