Okay, so I'm doing a discussion based assessment with my teacher in science and she is apparently going to ask me about, independent, dependent, and controlled variables. I didn't really understand them when I read the lesson so I was wondering if you guys could help...

Question

Okay, so I'm doing a discussion based assessment with my teacher in science and she is apparently going to ask me about, independent, dependent, and controlled variables. I didn't really understand them when I read the lesson so I was wondering if you guys could help... <3

anonymous · Answer

@countonme123?

anonymous · Answer

@ParthKohli hheellpp!?

anonymous · Answer

Scientists use an experiment to search for cause and effect relationships in nature. In other words, they design an experiment so that changes to one item cause something else to vary in a predictable way.

These changing quantities are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled.

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.

anonymous · Answer

-The controlled variable is the one that never changes, as it is used as the "control". 
-the independent variable is the variable that is tested.

aaronq · Answer

^ you mean dependent is the one that is tested.