It overcomes the prohibitive costs of laboratory or field-work based experiments. For example, providing variety of acids with different densities in a lab for one single experiment.
2. Dangerous experiments can be experienced in safety. For example, increasing’ proportion of pollutants in the environment to see the consequences.
3. Experiment, which would normally be impractical, can be attempted. For example, creation of civilization on a different planet.
4. The time normally demanded by an experiment can be foreshortened.
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5. It avoids the difficulties and complexities of real by using idealized conditions. For example, changing demands and supplies of commodities to see its effect on the market economy.
6. The level of complexity can be increased slowly. Variables can be added at every stage.