A testable science question for 6th grade is one a student can use to design and carry out an experiment or science fair project. Subjects to investigate include chemistry, botany, environment, health, weather and geology. A testable question may follow the format "How does A affect B?"
Examples of testable questions in botany and agriculture include "How does rainfall affect the speed at which fruits and vegetables ripen?" and "How close does a pesticide have to be sprayed to protect a plant from insects?"
To answer the question, the student researches and reads similar studies and chooses the best procedure for conducting the experiment. She designs and conducts the experiment, examines the collected data and finally reports on her work in a paper, science fair display or poster.