AIM OR INVESTIGATIVE QUESTION
When you start an investigation, you need to have a question in mind which you are going to answer. This is called THE INVESTIGATIVE QUESTION.
Usually your investigation begins with observations and then you design an investigation to prove your observations.
Eg: Does the length of a lesson increase boredom amongst pupils?
Does the amount of salt increase the temperature at which water will boil?
Does the number of batteries in a circuit increase the brightness of a bulb?
Or, you can write an AIM. This is similar to your investigative question, but it’s a statement of what the investigation is going to show.
Eg: To show that the length of a lesson increases boredom amongst pupils.
To see if the amount of salt increases the temperature at which water will boil.
To see if the number of batteries in a circuit increases the brightness of a bulb.
The aim is a statement of what you are going to show.
the answer is yes BTW...
The investigative question is a question which you are going to answer and must end with a question mark.