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Lesson: Understanding Scientific Theories

In this lesson, we will learn how to describe the process of forming and testing hypotheses to generate theories, and how competing theories are compared.

Sample Question Videos

04:25

Worksheet • 8 Questions • 1 Video

Q1:

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

  • AA test is the comparing of measurements of a phenomenon to predictions made by a hypothesis.
  • 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 a method of showing that a hypothesis is true.

Q2:

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

  • AA measurement is the process of determining the value of a quantity in an observation.
  • 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 act of noticing that some phenomenon seems to occur.

Q3:

Which of the following statements most correctly defines a hypothesis?

  • AA hypothesis is a possible explanation 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 prediction about the observation of some phenomenon.

Q4:

Which of the following statements most correctly defines an observation?

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

Q5:

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 both the theory and the existing theories are 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 the theory is tested in different ways.

Q6:

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

  • AA model is a description of how a phenomenon corresponds with a hypothesis.
  • 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 method of showing that a hypothesis is true.

Q7:

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

  • AA test is made of an observation predicted by the hypothesis, and if the prediction is incorrect, then the hypothesis is considered incorrect.
  • 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 hypothesis is compared to the hypotheses made by other scientists, and if they all agree, then the theory is considered correct.

Q8:

Which of the following statements most correctly defines a theory?

  • AA theory is a hypothesis that has been tested in various ways and has not failed the tests applied to it.
  • 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 description of how a phenomenon corresponds with a hypothesis.
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