Osmosis is when molecules pass through a semipermeable membrane from a less concentrated solution into a more concentrated one. Because water loses energy it is thus becoming equal or at equilibrium (Shadish, Harris, Tellekamp 2017). This is the point where the concentrations in both areas are equal and no net movement will occur from one area to another (Lab 1 Osmosis). In this lab we observed how molecules move across the cell membrane. The question this lab is answering is how materials within a cell move. Our hypothesis was a higher concentration and temperature will result in a higher change in mass. Also, that the 10% suroce concentration will change the least at room temperature and 40% sucrose concentration will change the most at 55