Worksheet: Understanding Scientific Theories

In this worksheet, we will practice describing the process of forming and testing hypotheses to generate theories and comparing competing theories.

Q1:

Which of the following statements most correctly defines a scientific test?

  • AA test is a method of showing that a hypothesis is true.
  • BA test is the process of scientists comparing their hypotheses to those made by other scientists.
  • CA test is a model of some phenomenon.
  • DA test is the comparing of measurements of a phenomenon to predictions made by a hypothesis.

Q2:

Which of the following statements most correctly describes scientific peer review?

  • AA theory is compared to existing theories; if it is inconsistent with them, then the theory is tested in different ways.
  • BA theory is compared to existing theories; if it is inconsistent with them, then the theory is considered incorrect.
  • CA theory is compared to existing theories; if it is inconsistent with them, then the existing theories are considered incorrect.
  • DA theory is compared to existing theories; if it is inconsistent with them, then both the theory and the existing theories are tested in different ways.

Q3:

Which of the following statements most correctly describes the testing of a hypothesis?

  • AA hypothesis is compared to the hypotheses made by other scientists, and if they all agree, then the theory is considered correct.
  • BA test is made of an observation predicted by the hypothesis, and if the prediction is correct, then the hypothesis is considered correct.
  • CA hypothesis is compared to existing theories, and if it is consistent with them, then the hypothesis is considered correct.
  • DA test is made of an observation predicted by the hypothesis, and if the prediction is incorrect, then the hypothesis is considered incorrect.

Q4:

Which of the following statements most correctly defines a theory?

  • AA theory is a description of how a phenomenon corresponds with a hypothesis.
  • BA theory is a possible explanation of some phenomenon.
  • CA theory is the process of scientists comparing their hypotheses to those made by other scientists.
  • DA theory is a hypothesis that has been tested in various ways and has not failed the tests applied to it.

Q5:

Which of the following statements most correctly defines a scientific model?

  • AA model is a method of showing that a hypothesis is true.
  • BA model is the comparing of measurements of a phenomenon to predictions made by a hypothesis.
  • CA model is the process of scientists comparing their hypotheses to those made by other scientists.
  • DA model is a description of how a phenomenon corresponds with a hypothesis.

Q6:

Which of the following statements most correctly defines a scientific measurement?

  • AA measurement is the act of noticing that some phenomenon seems to occur.
  • BA measurement is a prediction about the observation of some phenomenon.
  • CA measurement is a method of showing that a hypothesis is true.
  • DA measurement is the process of determining the value of a quantity in an observation.

Q7:

Which of the following statements most correctly defines an observation?

  • AAn observation is a prediction that some phenomenon will occur.
  • BAn observation is a measurement of some phenomenon.
  • CAn observation is a method of showing that a hypothesis is true.
  • DAn observation is the act of noticing that some phenomenon seems to occur.

Q8:

Which of the following statements most correctly defines a hypothesis?

  • AA hypothesis is a prediction about the observation of some phenomenon.
  • BA hypothesis is a measurement of some phenomenon.
  • CA hypothesis is the act of noticing that some phenomenon seems to occur.
  • DA hypothesis is a possible explanation of some phenomenon.

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