variable

Variable is something that can change. It can be anything, like the height of a plant, the temperature of a liquid, or the amount of time it takes to solve a problem.

In science, we use variables to represent the things that we are trying to measure or control in an experiment. For example, if we are trying to see how the amount of water affects the growth of a plant, we might use the amount of water as a variable.

We can change the value of a variable to see how it affects other things. In the plant experiment, we could change the amount of water to see how it affects the height of the plant.

The temperature is a variable in this equation.