Question

throughout the reflection, make sure you have a copy of the student guide and your data table. in your experiment, you tested this hypothesis: hypothesis: if molecules are small enough, then they will diffuse across a semipermeable membrane because they can pass through its tiny openings. the independent variable in this experiment was, and the dependent variable was. done molecule size molecule color molecule speed

Explanation:

The independent variable is the factor that is changed or manipulated in an experiment. Here, the hypothesis is based on molecule - size affecting diffusion. So molecule size is being manipulated. The dependent variable is what is measured as a result of the change in the independent variable. In this case, whether the molecules diffuse across the semi - permeable membrane (which can be observed or measured) depends on the molecule size.

Answer:

Independent variable: molecule size
Dependent variable: whether molecules diffuse across the semi - permeable membrane