By he NIH trying a new drug to help reduce pain associated with sickle-cell anemia, it's an example of an "experiment".
An experiment involves a hypothesis (an educated guess as to what's going to happen) and trying out the hypothesis and finding the solution.
Answer:
You need to believe in yourself, and have faith that you can and will succeed. Have a positive attitude and just be yourself :)
To encourage good nutrition, ChooseMyPlate.gov recommends choosing foods that are high in :
<span>- fiber and dense in nutrients</span>
