Controls and Variables

The video tutorial explains the importance of controls and variables in scientific experiments. It highlights the roles of independent and dependent variables and the necessity of controls to ensure accurate results. A case study on the effect of sunlight on plant growth illustrates these concepts. The tutorial emphasizes the need for repeatability and clarity in experimental design, ensuring only one independent variable is tested at a time to avoid confounding results.

Describe how a well-designed experiment ensures repeatability.

What conclusions can be drawn from an experiment that measures the effect of sunlight on plant growth?