1. Name ____________________________ Date ___________
Parts of an experiment worksheet
Directions: Find the independent variable, dependent variable, control group, and experimental group in the following scenarios.
Rose bushes are grown in a different lighted areas of the classroom for two months. The number of flowers on each bush is counted at the end of the experiment.
Independent Variable _________________________________________________
Dependent Variable __________________________________________________
Control Group _______________________________________________________
Experimental Group(s) ________________________________________________
Constants __________________________________________________________
A student waters three sunflower plants with salt water. Each plant receives a different amount of salt in its water. A fourth plant receives pure water with no salt. After two weeks, the heights are measured.
Independent Variable _________________________________________________
Dependent Variable __________________________________________________
Control Group _______________________________________________________
Experimental Group(s) ________________________________________________
Constants __________________________________________________________
A student wants to find out which kind of fish food will be most nutritious for fish. Normally, fish eat flakes. She tests 3 other types of food and records the weight of the fish daily.
Independent Variable _________________________________________________
Dependent Variable __________________________________________________
Control Group _______________________________________________________
Experimental Group(s) ________________________________________________
Constants __________________________________________________________

2. Complete on your own. When you are finished, show Mrs
Complete on your own. When you are finished, show Mrs. Leiker for a classwork grade.
Mr. Smarteepants would like to do an experiment to find out if his students’ test scores will go up if he does a review game the day before.
Independent variable: ______________________________________
Dependent variable: _______________________________________
Control group: ____________________________________________
Hypothesis: _________________________________________________________
___________________________________________________________________
Miss B. is looking to find out what kind of socks are best to wear in the winter to keep her students feet the warmest.
Students would like to discover how different types of candy affects the number of cavities that children get.
Miss B’s students want to find out if which floor of the school plants grow best.