identifying experimental variables forming a question that is the basis of a hypothesis conducting repeated trials and graphing the data writing out a procedure and collecting the needed equipment
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which of the following is the starting point for a new scientific investigation?
Possibilities:
- identifying experimental variables
- forming a question that is the basis of a hypothesis
- conducting repeated trials and graphing the data
- writing out a procedure and collecting the needed equipment

forming a question that is the basis of a hypothesis