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Identify the variables that you need to control and the variable that you will change?
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What is the word for the one variable that is purposely changed to test a hypothesis?
The independent variable is the one that is changed by the scientist.Control variables are kept unchanged in an experiment.Dependant variables are those that change as a result of the independent variable being changed.
Part of the experiment that does not change?
the procedure doesn't change except for one controlled variable
What are the independent and dependent variables of adding salt water to boiling water?
The quantity of salt added to water is under your control and it will change the boiling point of water,i,e. the temperature of water. So quantity of salt is an independent variable while the temperature of water is dependent variable, when other factors are kept constant.
List three things that you can control and or measure in this experiment in chemistry lab?
There are more than three possible controls for any experiment, as a control is just a variable that something is being tested against and compared to. Three would include temperature, color, or weight - all things that may be easily controlled among a group of test subjects.
How is a Controlled Variable used to make a test fair?
Generally scientific experiments investigate the relationships between an independent variable and one or several dependent variables.Independent variables are regulated parameters and the outcome of the experiments do not affect these variables.The dependent variables are those variables which have some sort of relationship with the independent variable and it is the investigators task to determine the nature of this relationship.Any single scientific investigation must regulate only a single independent variable with all other independent variables held constant. This is done so that the investigator can correctly attribute an outcome as being due to the regulation of a single variable. For example, suppose you started watering your potted plants with a saline solution and you also began exposing them to very intense light. If you saw that the plant leaves changed colors you would not know which variable had the greater affect on this color change. Did both variables even affect the leaf or was it due to just one variable? which one? You would have to split the investigation into two investigations, each with a single independent variable.
Variables that do not change in a experiment?
the dependant variable
Some variables that can change in an expeirement and discuss the inportance of a control group?
dependent variable & control variable
What do you call the variables that do not change in an experiment?
Control Variable
In an experiment what are the controlled variables?
The variable YOU change which will in turn effect another variable (the dependent variable). The controlled variable is plotted on the x - axis of a graph.
Definitions of the 3 types of variables in doing an experiment?
The three variable in an experiment are independent, dependent, and controlled. The independent is the variable you control, the dependent is the variable that will change according to the independent. The control is kept constant so they do not affect the dependent.
Why is it importaint to controle variables in an experiment?
You need to control the variables because if you have two or more variables in an experiment you will never know which variable caused a change or not caused a change.
Why would a scientists need to identify and control variables in an experiment?
A scientist would need to identify variables so you could know what to change and what to keep the same. A scientist would need to control variables so you can try to see exactly which factors are affecting the dependent variable (the thing you're measuring). Hope this helped! Because I have the exact same question on my homework!
What is a variable in a controlled experiment?
In a controlled experiment, the control variable is the one specific thing that is kept constant to measure the change of the other variables. Those variables are the parameters that are being tested.
Factor in an experiment that changes as a result of other factors changing?
A factor in an experiment that can change is called a variable. Variables are used in experiments to test a hypothesis, and someone will manipulate the variable, while keeping something else the same, a control, in order to see how the variables react in comparison with a control.
What is a control variable in a science project?
It is the variables you will not change to keep the experiment a fair test, they should be kept constant to show how your independent variable affects your dependant variable.
What are indepenent and dependent variables?
Dependent variable change and independent variables do not change.
What does it mean to control the variables in an experiment?
Controls are the things you leave the same when you do an experiment. Variables are the things you affect in an experiment to see if it makes a difference. It depends on the experiment how you would "control" the variable.
