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Scientific Method Flashcards

(16 cards)

0
Q

Define a variable.

A

Variable: Any condition that changes or varies the outcome of a scientific experiment

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1
Q

List the steps to performing a scientific investigation in order.

A
  1. Purpose
  2. Hypothesis
  3. Procedure
  4. Materials
  5. Hypothesis
  6. Analysis
  7. Conclusion
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2
Q

Define a independent variable.

A

Independent Variable: A variable that is changed by the investigator

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3
Q

Define a dependent variable.

A

Dependent Variable: A variable that changes in response to the in independent variable

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4
Q

Define a controlled experiment.

A

Controlled experiment: An experiment in which the independent variable is purposely changed to find out what change, if any, occurs in the dependent variable

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5
Q

Define an observational study.

A

Observational Study: The careful watching, recording, of a subject or phenomenon to gather scientific information to answer a question

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6
Q

What branch of science is mostly observational study?

A

Astronomy

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7
Q

What is a hypothesis?

A

Hypothesis: A possible answer or untested explanation that relates to the initial question in an experiment (an educated guess)

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8
Q

What is a prediction?

A

Prediction: A statement that predicts the outcome of a controlled experiment

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9
Q

What is the difference between a hypothesis and a prediction?

A

A hypothesis is an educated guess that is based on background information while a prediction is just a guess on the outcome of an experiment

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10
Q

What are the parts of the scientific method in the experimental design in order?

A
  1. Procedure

2. Materials

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11
Q

What are the skill important in a scientific investigation?

A
  1. Initiating an planning
  2. Performing and recording
  3. Analyzing and evaluating
  4. Communicating
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12
Q

What must be done before an experiment can be shared with the public? What is the name and purpose of the process?

A

The experiment must be reviewed with other scientists in a process called peer review. The purpose is to check if the experiment data is valid and the science is correct.

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13
Q

What does WHMIS stand for in safety symbols?

A

Workplace Hazardous Materials Information System

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14
Q

What does HHPS stand for in safety symbols?

A

Hazardous household Product Symbols

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15
Q

What is the shape of WHMIS symbols?