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Because it helps them know the results of the objects in the experiment and how they differ. This way the scientist knows which succeeded and which failed.
Wiki User
∙ 6y ago
Wiki User
∙ 13y agoThey must be able to compare the control group to the experimental group in order to determine results of the experiment.
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Why is a experiment designed?
Scientist design experiments to test something.
What do scientist use tools to do?
Make stuff for experiments, do experiments and analyse the results of experiments.
Is the scientific method useful in selecting a spouse?
No, you cannot do experiments, you cannot use control groups, etc.
What do scientist use to do experiments?
Scientific equipment.
Why do scientist use classifacation?
=Scientist use classifacation to but living or nonliving organisms in small or big groups...==Scientist use classifacation to but living or nonliving organisms in small or big groups...==Scientist use classifacation to but living or nonliving organisms in small or big groups...=
What do scientist use to do their experiments?
The tools that a scientist would use to conduct an experiment would vary greatly on the nature of the experiment.
Who was the first scientist to use experiments to test his theories?
Galileo Galilei
What are some examples of simple tools scientist use in experiments?
microscopes
How do scientist develop scientific explanations about subjects that are impossible to study through controlled experiments?
Scientist use models
How do scientist develop scientific explanations about subjects that are impossible to study through controlled experiments.?
Scientist use models
How do scientist develop scientific explanation about subject that are impossible to study through controlled experiments?
Scientist use models
Why do scientist use measurements?
So that they get exact amounts, making experiments worthwhile
