circulate

Circulate means to move around in a circle or a loop. It can also mean moving through a system or an area.

In science, the word circulate is often used to describe the movement of fluids, such as blood, water, or air. For example, blood circulates through the body, water circulates in the ocean, and air circulates in the atmosphere.

The movement of fluids is important for many reasons. It helps to transport nutrients and oxygen to cells, it helps to remove waste products, and it helps to regulate body temperature.

Imagine that you are a ball in a river. The river is like a system, and the ball is like a fluid. The ball circulates through the river, and it is carried along by the current. In the same way, fluids circulate through systems. They are carried along by currents, and they move in a circle or a loop.

The blood circulates through the body.