whats is an organized plan to solve problems

Scientific method?

thank you

umm what is the variable the experimenter changes

http://www.sciencebuddies.org/science-fair-projects/project_variables.shtml

i cant find it

From the above site:

"The independent variable is the one that is changed by the scientist. To insure a fair test, a good experiment has only one independent variable. As the scientist changes the independent variable, he or she observes what happens.

The scientist focuses his or her observations on the dependent variable to see how it responds to the change made to the independent variable. The new value of the dependent variable is caused by and depends on the value of the independent variable.

For example, if you open a faucet (the independent variable), the quantity of water flowing (dependent variable) changes in response--you observe that the water flow increases. The number of dependent variables in an experiment varies, but there is often more than one.

Experiments also have controlled variables. Controlled variables are quantities that a scientist wants to remain constant, and he must observe them as carefully as the dependent variables."

thanks whawt is a proposed answer to a question

What do you think?

hypothesis

Right.

okay what are devices that increase the five senses' abilities to obtain information