Plants do not have mouths, but they still need water. Most land plants take in water from the soil through their roots.
Very small root hairs touch water around pieces of soil. Water enters the roots and moves into xylem. Xylem is a group of narrow tubes that runs through the roots and stem.
Water then travels up the xylem to the leaves. When some water leaves the leaves as vapor, it helps pull more water upward. Water molecules also hold on to one another, so they can move together in a long line.