Scientists call anything that can change and have different values in an experiment a _________
Variable
Lucy gives her plant the same amount of water everyday and checks the plant's height. What is the dependent variable?
The water
What is the variable called that is measured?
Dependent variable
Everything that stays the same
Controlled
The one thing you can change, limiting to only one in an experiment
Independent variable
The dependent variable depends on the ___________?
Independent variable
Harry has three dogs, they are the same size and breed. He wants to see if their weight increases over three weeks by giving them dry food but on week two he gives one of the dogs some wet food. Is this a fair test?
No
The change that happens because of the independent variable
Dependent variable
What is the variable called that is changed by the scientist?
Independent variable
What produces valid data?
Fair Tests