As a high school student, international online competitions give you the opportunity to challenge yourself academically, pursue your interests, and connect with students from around the world. Whether you're interested in writing, entrepreneurship, science, technology, finance, or public speaking, these competitions allow you to apply what you know in a structured and competitive environment.

Winning at the International Science and Engineering Fair (aka ISEF) is arguably the most prestigious and competitive scientific accomplishment that you can aim for at the high school level. However, Regeneron ISEF can be difficult to understand, given its complex structure. From multiple qualifying fairs to neverending forms to deciding what category to compete in, there are thousands of ways to approach ISEF. In this guide, we will help you understand this mammoth compet