The number of times an experiment is repeated.

How close the experimental results are to the true value.

The variety of instruments used in an experiment.

The speed at which an experiment is conducted.

An error that occurs randomly and unpredictably.

A repeated, reproducible error consistently in the same direction.

An error that only occurs once in an experiment.

An error caused by human mistakes.

By calibrating instruments and using them correctly.

By conducting experiments outdoors.

By increasing the sample size.

By using more expensive equipment.

An error due to environmental changes.

An error that occurs when data is recorded incorrectly.

An error caused by faulty equipment.

An error due to reading an instrument from an incorrect angle.

To ensure the experiment is completed quickly.

To reduce the cost of the experiment.

To make the experiment more interesting.

To prevent interference with the measurement of the main variable.