Determine the independent and dependent variables in your investigation. What are at least three controlled variables?The liquids

Identifying Variables in an Investigation

1. Independent Variable: The independent variable is the one that is changed or controlled in a scientific experiment to test its effects on the dependent variable. In the context of your investigation involving liquids, this could be the type of liquid being tested (e.g., water, oil, vinegar).

2. Dependent Variable: The dependent variable is the variable that is measured and affected in the experiment. This could be something like the rate of evaporation, temperature change, or pH level of the liquids.

3. Controlled Variables: Controlled variables are the factors that are kept constant to ensure that the results are valid. Here are three examples:

   • Volume of liquid: Ensure that each type of liquid has the same volume being tested.
   • Temperature: Conduct all experiments at the same temperature to avoid affecting the results.
   • Surface area: Use containers of the same size and shape for each liquid to maintain a consistent surface area.

Summary

• Independent Variable: Type of liquid.
• Dependent Variable: Variable being measured (e.g., evaporation rate).
• Controlled Variables: Volume of liquid, temperature, surface area.