Jorge conducted an experiment, and included the graph shown below as part of his lab report. Jorges experiment involved which if the following?

-A Chemical change.

-A change in the chemical properties of a substance.

-A physical change.

-the formation of a new substance.

The correct answer is A physical change

Explanation:

Jorge's experiment shows water at different temperatures; in this experiment, it is expected at low temperatures such as -20°C water is in solid-state (ice), at medium temperatures such as 40°C water is in a liquid state (liquid water), and at high temperatures such as 120°C water is in gaseous state (water vapor). This implies during this experiment the changing factor is the physical state (solid, gas, or liquid), and this is a physical change because only the physical properties of water change but not its composition or identity. According to this, the correct answer is physical change.

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