Well, I do not know what the criteria is for your science fair project but you could do something like: # Does gender affect the ability to do a good cartwheel? # Does age affect the ability to do a good cartwheel? # Does height affect the ability to do a good cartwheel?
Dementia is a terrifying affliction that affects the brains processes. The mind begins to lose the ability to retain or remember information. Schizophrenic tendencies and odd behaviors will also be noted.
While you gain a lot of experience in your sport with age, but your physical stamina will tend to be lower than most young men if you are an outdoor sports person. Although in games, such as, chess or other board games, age does not affect the person's ability much.
Alcohol can reduce your ability to retain information. It's best not to drink before studying. Alcohol can definitely affect your performance. You won't be able to remember. If you drink too much you will lose interest in your studies. Eventually you may stop even going to class.
Age can effect academic performance because of the ability for a person to gain more knowledge. With more time, there is obviously more room for learning. However, age does not have anything to do with hard work. If a person works hard with determination, their academic performance should improve.
Aside from possibly interfering in the proper pronounciation of lyrics, having bad teeth shouldn't affect singing ability. The ability to sing comes from the vocal cords, which aren't anywhere near the teeth.