International Earth Science Olympiad (IESO)

What this program actually is

International Earth Science Olympiad (IESO) is a competition run by IESO. It's built for 9th grade–12th grade students who want to work in person alongside IESO on work in your field of interest.

There's no cost to participate — the program covers what it needs to.

Who it's for

Programs like this get the strongest applications from students who can point to a specific reason they want this one — not just "any research program" or "any internship."

• Students in 9th grade–12th grade — check the official page for exact grade cutoffs before applying.
• Priority or eligibility for students in: INTL. Some programs still take out-of-state applicants; read the fine print.

Typical day-to-day in programs like this

The following describes what participants generally do in competitions of this shape — not a confirmed schedule for International Earth Science Olympiad (IESO). Always check the official program page for the actual activities.

• Build or write a submission on your own timeline — the competition is the application.
• Get feedback from judges and, at some stages, from peers and mentors.
• If you place, you'll have a concrete, external validation you can put on any future application.

How to apply well

Selection is competitive but not unrealistic. A thoughtful application usually beats a decorated one.

• Start with the deadline: National selection spring. Work backwards — most students underestimate how long recommendations and essay drafts take.
• Read the official page twice before writing anything. Note the exact prompts and word counts.
• Answer the actual question. Reviewers read hundreds of essays; specificity beats polish.
• Submit at least 24 hours before the deadline. Portals crash. Files fail to upload. Give yourself the buffer.

Cost, funding & logistics

Cost and logistics kill more applications than eligibility does. Sort these out before you get emotionally invested.

• Format: In person in Various.
• There's no cost to participate — the program covers what it needs to.
• If travel or housing is required and cost is a concern, email the program directly and ask what aid is available. Programs rarely publish everything they can offer.

After the program

The most valuable thing you leave International Earth Science Olympiad (IESO) with is usually not the credential — it's the two or three people you met and the one concrete thing you made. Keep in touch with your mentors and peers; they're the beginning of a professional network in your field of interest.

Add the program to your resume, but also write down (for yourself) what specifically you learned, what you'd do differently, and what question you now want to answer next. That reflection is what turns a summer into a direction.