Questions


November 2022 1 3 Report
Pre-Assessment Directions: Write the letter of the correct answer on a separate sheet of paper 1. What is the first step in the scientific method? A asking a question C. gathering information B. forming a hypothesis D. organizing data 2. Which of the following statements would be TRUE of the scientific method? A People structure their lives on the principle of scientific method. B. Scientists report the experimental results, but not the experimental design. C. The scientific method is a continuous process by which people leam about his world. When the results of the experiment do not fit the hypothesis, a scientist may discard the results and stop the experiment. 3. When scientists wish to communicate the results of their research, they are most likely to do which of the following? A Call a press conference, B. Immediately repeat the research C. Sell their findings to other researchers D. Write a concise report with complete results and proofs to the experiments performed and formulate conclusions. 4. Suppose your mother sent you to the market to buy fruits and vegetables. How would you choose good quality fruits and vegetables? A. Ask the vendor to choose it for you. B. Just get any kind and pay right away. C. Examine the fruit if it is free from insect bites and the smell of insecticide. D. Tell your mother that you do not know how to buy good quality fruits and vegetables 5. How is a hypothesis tested ? A. by conducting an experiment and looking for results B. by comparing observations in nature with predictions C. by using the hypothesis to make predictions about a system D. all of the above 6. During an experiment about a coin and feather that were dropped at the same time, it was found that coin reached the ground first. One student said: "Maybe, the coin is heavier than the feather." What do you call this kind of statement? A. a problem B. a conclusion C. a hypothesis D. an interpretation For items 7-9: A group of students was asked to investigate how fast sugar dissolves in cold and in hot water? 7. If this is going to be a fair test, what variables should they control? A Amount of water and sugar in each cup, method of stirring, time when the solid is added to water, how long each solution is stirred. B. Amount of water and sugar in each cup, method of stirring, how long each solution stirred. C. Amount of sugar in each cup: method of stirring, time when the solid is added to water, how long each solution stirred. D. Amount of water in each cup, method of stirring, time when the solid is added to water, how long each solution is stirred. 8. What is the dependent variable (what is being measured)? L. The temperature of water. It The amount of sugar. HE The length of time that sugar completely dissolves in hot water. IV. The length of time that sugar completely dissolves in cold water. C. II and III D. III and IV A. I only B. Il only​

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