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Research And Scientific Methods Quiz 3 (25 MCQs)

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1. Performing a test or experiment allows you to test your _____

2. "I am examining the school grounds and surveying students and nearby residents for information about where the ants came from." This describes what kind of scientific method?

3. The outcome of your test.

4. Identify the statement below that best describes an observation that supports the fact that the student's heart range was above their normal rate which 115 beats per minute.

5. How can you create a 'fair test'?

6. The part of the experiment that is used for comparison and is the "normal state":

7. Which statement best describes a scientific theory?

8. What is another term used to describe the independent variable?

9. A factor that changes in an experiment in order to test a hypothesis is _____

10. The following statement is a hypothesis formed about marsh grass:If the amount of nitrogen marsh grass receives is increased, then the height of the grass will increase, because nitrogen is an essential nutrient needed for marsh grass to grow. What is the independent variable of the statement above?

11. Mr. McNiece wanted to see how different types of music affected students' pulse rates. She played different types of music:heavy metal, rap, R&B, alternative, pop, country, and classical music. Identify the independent variable.

12. An experiment is set up with ten pots to test the effective of fertilizer on plant growth. 5 pots have fertilizer added to the soil, 5 pots do not have fertilizer added to the soil. Each pot has 1 spider plant and 5 cups of soil. The pots are watered once a week with 1/2 cup of water. What is something that would need to be true of the spider plants?

13. A science researcher is reviewing another scientist's experiment and conclusion. The reviewer would most likely consider the experiment invalid if

14. In the scientific method what do you do before the hypothesis?

15. Though scientists study the world from differing perspectives, what must all scientists take into account?

16. An experiment was carried out to determine whether drinking caffeinated soda increases pulse rate. The pulse rates of two groups of people at rest were measured. Group A was then given caffeinated soda and group B was given caffeine-free soda. One hour after drinking the soda, the pulse rates were measured. The participants in the experiment were all the same age, and they were all given the same amount of soda. The dependent variable in this experiment is the

17. Set of related hypotheses supported by evidence is _____

18. All factors that can change in an experiment.

19. This is the group that is affected by the variable or the group that is changed.

20. The development of an experimental research plan should NOT include a

21. Why do scientists consider any hypothesis valuable?

22. A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____

23. A pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept.

24. Jill is testing the effect of caffeine on the breathing rate of betta fish. She sets up two fish tanks with identical conditions. She places 10 betta fish in each tank. She adds caffeine to one tank and nothing to the other tank. She then counts the operculum plate movement per minute for the fish in each tank. What scientific question is the above experiment attempting to answer?

25. Which statement best expresses a basic scientific assumption?

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Research And Scientific Methods Quiz 3 (25 MCQs)

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