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A variable is something that is being changed purposely, to observe what effects changing it has on the substance, reaction, etc. For example, if one were to test the effects of less or more water on plants, the amount of water could be called a variable.

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11y ago
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7y ago

When scientists talk about a variable, generally this is an algebraic reference to a term in an equation which can have different, or varying values; to use a simple example, in the equation x = 2y, the value of 2 is always the same, but x and y can have infinitely many values for which that equation remains valid (for example, if x = 4 then y = 2, if x = 300 then y = 150, etc.).

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12y ago

SO. There are two types of variables. The independent variable, and the dependent variable.

Independent Variable: Also known as the IV.

    What YOU change. Think of it as I change it. "I"

Dependent variable.  

    What you are going to find out from the experiment. 

Hope i helped :)

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13y ago

I'm not sure about in science, but in computing terms it is somthing that changes, such as time, - apposed to the codes to start up a computer(which are always the same - unless altered of course ). e.g. In everyday terms- the weather or amount of reproduction in the world.

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9y ago

A variable is something that may be changed or manipulated during an experiment. It can also represent an "unknown" quantity. A controlled variable is something that you can keep constant.

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13y ago

somehing that can change ex. you health it all matters about what u eat how much u exersize so on. its something that can change because of something else

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9y ago

In chemistry, variables are outside forces that can be manipulated to alter experiments. Variables include temperature, light, time, and volume.

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Q: What is a variable in chemistry?
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