C451/142 Questions With Complete Solutions

In a scientific investigation, a hypothesis is: a) the second step in the investigation b) an explanation for the results gathered in the investigation c) data collected to test the scientific question d) a testable prediction about the outcome of the investigation - ️️d) a testable prediction about the outcome of an investigation Which of the following is NOT a part of scientific methods? a) collecting information using tools or the senses b) making educated guesses about what will happen c) changing or ignoring data that do not agree with your prediction d) thinking creatively about how to answer the question - ️️c) changing or ignoring data that do not agree with your prediction Which of the following is NOT an example of using scientific methods to answer a question? a) drawing a conclusion based entirely on logical reasoning b) observing a natural system to figure out how it works c) collecting data to determine whether a prediction is accurate d) repeating an experiment to see if you get the same results - ️️a) drawing a conclusion based entirely on logical reasoning Which of these scientific investigations would be most appropriate as a field study? a) determining how a new antibiotic affects bacterial cells in a Petri dish b) calculating how long it takes volcanic ash to move through the atmosphere c) measuring how hot a rock needs to get before it melts d) observing how coral interact with parrotfish - ️️d) observing how coral interact with parrotfish A farmer wants to figure out which brand of fertilizer will produce the largest tomato yield. In a controlled experiment to answer this question, what would be the more appropriate independent variable? a) type of tomato plant b) type of fertilizer c) amount of fertilizer d) tomato yield - ️️b) type of fertilizer