High School Competition Chemistry

If you are interested in Chemistry, there are a lot of useful resources and books that can help you master this subject.


Popular Chemistry Competitions

Local Chemistry Olympiad Competition

The local competition is open to all high school students. ACS Local Sections choose nominees for the national exam. Students can review past Local Exams to study for their local competition. Nearly 16,000 U.S. students participate in Local Chemistry Olympiad competitions.

Past Exams

US National Chemistry Olympiad (USNCO)

National Chemistry Olympiad is a multi-tiered chemistry competition. The top four students of the national competition represent the United States in the annual International Chemistry Olympiad. 

Past Exams

International Chemistry Olympiad

The International Chemistry Olympiad (IChO) is a chemistry competition organized for students at secondary school level with the aim of promoting international contacts in chemistry.

Past Exams

Chemagination at Princeton

This competition is geared to high school students who have taken or are currently taking advanced placement or honors level chemistry.


ChemiCo provides talented students with a unique platform, where they can compete globally.​ ChemiCo is a 90-minute online competition, which consists of multiple-choice questions. Students are penalized for wrong answers. The questions only require knowledge of general secondary school chemistry syllabus. Core concepts include stoichiometry calculations, chemistry of reactions, periodic table, atomic structure and chemical bonding, experimental chemistry. Most questions are designed by putting emphasis on application of core concepts and logical and analytical thinking rather than knowledge alone in order to allow equal opportunities for all secondary school students.

List of Chemistry Competitions from InternetChemistry.com

List of chemistry competitions and contests in many countries.

Free Online Resources

Science Olympiad Blog for Chemistry preparation

A comprehensive set of resources for Chemistry Olympiad preparation.

US National Chemistry Olympiad Past Exams

Individual exams from previous years and their solutions  are available in PDFs for practice

IChO Past Exams

This link provides the International Chemistry Olympiad exams.

AoPS info on Chemistry Competitions

This is a resources page for students interested in Chemistry competitions. 

Most Popular Books for Physics Competitions

Paid Classes


If you are looking for paid Physics classes, here is a list of the most popular classes.

JPH Chemistry Olympiad Classes

Chemistry Olympiad  Class  covers all the materials required for Chemistry Olympiad Exams and high school Honors Chemistry and AP Chemistry classes.  In order to prepare students for various competitions, some selected topics will go as far and deep as college chemistry level.  All lectures are based on Professor Jianping Huang’s personally-generated 2000+ pages of handouts and a college level chemistry textbook, “Chemical Principles, The Quest for Insight" by Peter Atkins and Loretta Jones.

Art of Problem Solving ChemWOOT

ChemWOOT is an online training program for the US National Chemistry Olympiad (USNCO), Olympiad Study Camp, and International Chemistry Olympiad (IChO). You can learn more about the US National Chemistry Olympiad here.

askIITians Chemistry Olympiad

They provide​ video lectures and other resources to prepare for Indian Chemistry Olympiad.