What are the 3 scientific variables?

Answer 1

The three scientific variables are independent variables, dependent variables, and controlled variables. The independent variable is the variable that is manipulated or changed by the researcher. The dependent variable is the variable that is measured or observed in response to the changes in the independent variable. Controlled variables are the factors that are kept constant to ensure that they do not influence the relationship between the independent and dependent variables.

Answer 2

The Independent Variable : It is the ONE thing you plan to be different in the experiment. You decide on what is going to be different BEFORE doing the experiment.

Dependent Variable or Outcome Variable : It is the result you compare of measure in the experiment.

Controlled Variable : This is the part of the experiment that you DO NOT CHANGE. This is what STAYS THE SAME.

Answer 3

The variables in an experiment are what changes while you measure them. For example, you heat water to 212 degrees F and the water boils. You control the heat, so it is an independent variable. You observe that the water changes states from liquid to gas, so it is a dependent variable.

Answer 4

independent variable: what you changed in the experiment

dependent variable: your results

An experiment involves three types of variable.

The independent variable is the one you are investigating. It is the one which you deliberately vary in the experiment. You should only have one independent variable.

The dependent variable is the variable which you measure to get your results. Often there is only a single dependent variable but there can be more.

All other variables must be controlled ie kept constant so they do not change the result. There are usually many control variables in an experiment.

Answer 5

An experiment involves three types of variable.

The independent variable is the one you are investigating. It is the one which you deliberately vary in the experiment. You should only have one independent variable.

The dependent variable is the variable which you measure to get your results. Often there is only a single dependent variable but there can be more.

All other variables must be controlled ie kept constant so they do not change the result. There are usually many control variables in an experiment.

Answer 6

1. Independent variable- the variable the experimenter changes or has control over.

2. Dependant variable - the variable the experimenter measures as a result of the changes in the independent variable.

3. Constant variable - all other variables in an experiment which must be kept constant so not to influence the outcome of the experiment. Experimenter wants to determine what will happen because of changes in the independent variable only, all others must stay the same.

Answer 7

Things that do not have fixed values are known as variables. The speed of light has a set value, so it never changes and is known as a constant. Temperature does change, so it is a variable. Variables can affect how an experiment goes. A different temperature will have a different effect on an experiment. The weight of an object can be different, the size of something, the quantity of something can all be variables. Sometimes though you may want to work with a specific value of something that normally does change. Some experiments may require that a temperature has to be at a specific value for example. For the purpose and success of that experiment, the temperature value would have to be a constant.

Answer 8

indepent variable is the things you could change. the dependent variables are the results that you can measure

Answer 9

a variable in science is the thing that changes in your experiment

Answer 10

There are three variables:

• Independent
• Dependent
• Extraneous