Scientific method

Which statement about the scientific method is TRUE?

• The scientific method emphasizes reason as the way to understand the world.

• The scientific method emphasizes observation and reason as the way to understand the world.

• The scientific method emphasizes observation and experimentation as the way to understand the world.

• The scientific method emphasizes scientific laws as the way to understand the world.

Which of the statements below is NOT part of the scientific method?

• observation and measurement

• formation of a hypothesis

• testing of a hypothesis by experimentation

• refinement of a hypothesis as needed

• All of the above steps are part of the scientific method.

Which statement about a hypothesis is TRUE?

• It is a tentative interpretation or explanation.

• It has the potential to be proven wrong.

• It can be tested by experiments.

• It is part of the scientific method.

• All of the above statements are true.

The definition of a scientific law is:

• the same as a hypothesis.

• a way of learning that emphasizes observation and experimentation.

• the underlying reason for a scientific theory.

• a number of similar observations generalized into a brief statement summarizing past observations and predicting new ones.

• none of the above

What term best describes a brief statement that summarizes many past observations and predicts new ones?

• experiment

• hypothesis

• scientific law

• theory

• none of the above

Which of the following is an example of a scientific law?

• All matter is composed of small, indestructible particles called atoms.

• In a chemical reaction, matter is neither created nor destroyed.

• When a can of soda pop is opened, a fizzing sound is heard.

• Flammable objects contain phlogiston.

• none of the above

What is the definition of a scientific theory?

• a brief statement that summarizes past observations and predicts future ones

• a model that explains the underlying reasons for observations and laws

• the equivalent of a scientific opinion which others may disagree with

• a method of learning that emphasizes reason as the way to understand the world

• none of the above

Which of the following is an example of an observation?

• All matter is composed of small, indestructible particles called atoms.

• Reactions occur due to the transfer of electrons.

• When a can of soda pop is opened, a fizzing sound is heard.

• Flammable objects contain phlogiston.

• none of the above

Which statement accurately describes the purpose of experiments?

• Experiments are designed to produce the results predicted by a theory.

• Experiments can be replaced by a simple, logical reasoning of known facts.

• Experiments are designed to produce unexplainable results for further investigation.

• Experiments look for other observable predictions of a theory.

• none of the above

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NGSS.HS-PS1-2

Which of the following would be considered a theory?

• Glass is fragile.

• Hot air rises.

• Gasoline has a very strong odor

• Helium balloons float because helium is less dense than air.