Conducting a fair test is one of the most important ingredients of doing good, scientifically valuable experiments. To insure that your experiment is a fair test, you must change only one factor at a time while keeping all other conditions the same. Scientists call the changing factors in an experiment variables.
Eligibility Requirements for VFW Auxiliary Membership: Members must be citizens of the United States or a United States National, and at least 16 years old.
FAA Requirements to Obtain a Private Pilot Certificate (Detailed Version) The Federal Aviation Regulations (FARs) identify the following requirements to obtain a Private Pilot. Certificate: 1. Be at least 17 years of age. 2. Be able to read, write, and converse fluently in English.