What these words mean

1.Control Group-is a condition of the independant variablethat does not recieve the experamental treatment.
2.Hypothesis-is a tentative(as opposed to a theorywhich is well tested)explanation for observed events.
3.Scientific method-steps to prove a theory.
4.Experimental group-a group of items in a lab you don't mess with.
5.Graduated cylinder-a glass container to hold an experimental liquid t be heated or measured.