* Hypotonic: This means the solution has a lower concentration of solutes (like salts or sugars) compared to the inside of the cell.

* Water Movement: Water naturally moves from areas of high concentration to areas of low concentration. In a hypotonic solution, there's more water outside the cell than inside, so water moves into the cell to try and equalize the concentration.

Think of it like this: Imagine a cell is a balloon filled with a sugary solution. If you put the balloon into a glass of plain water, the water will move into the balloon because there's more sugar inside the balloon than in the water.

Important Note: This movement of water is called osmosis, a crucial process for maintaining cell function and volume.