A Scientist Performs a Controlled Experiment

question 20

Multiple Choice

A scientist performs a controlled experiment. This means that

• A) the experiment is repeated many times to ensure that the results are accurate.
• B) the experiment proceeds at a slow pace to guarantee that the scientist can carefully observe all reactions and process all experimental data.
• C) two versions of the experiment are conducted, one differing from the other by only a single variable.
• D) one experiment is performed, but the scientist controls the variables.

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Definitions:

Matches Reality

This term is not well-defined in a broad technical context and could be interpreted variously depending on the field; however, it generally suggests the degree to which a model or simulation accurately represents the real world.

Spreadsheet

A program designed for organizing, analyzing, and storing data in tabular form, often featuring calculation, graphing, and pivot table functions.

Calculations

The process of determining the result of a mathematical or logical expression.

Numbers

Apple's spreadsheet software designed for macOS and iOS or refers to digits and mathematical objects used in counting and measuring.