A science project that has variables can be an experiment that aquires for variable change.
It can have as many as it needs. You can even change different variables at the same time and study their individual influence with proper statistical tools in many type of experiments.
Sonar soundings.
The number of dependent variables in an experiment varies, but there is often more than one. experiments also have controlled variables are quantities that a scientist wants to remain constant, and he must be observe them as carefully as the dependent variables.
Experiments can be used to test a hypothesis. For example, an ecologist may set up an artificial environment in a lab to imitate and manipulate conditions that organisms would encounter in the real world. Scientists use experiments to manipulate variables until they find the answer to their question. This is all part of the scientific inquiry.
independent and dependent variables
variables
There may be varibles that are uncoutned for or unknown
Yes it can. Most experiments will have several variables.
one
it is difficult to control all variables except the one being tested
Yes it can. Most experiments will have several variables.
Yes it can. Most experiments will have several variables.
A science project that has variables can be an experiment that aquires for variable change.
it is difficult to control all variables except the one being tested
it is difficult to control all variables except the one being tested
it is difficult to control all variables except the one being tested