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USA Chemistry Olympiad (USNCO)

Science
Math

American Chemical Society

Annual competition

The USA Chemistry Olympiad (USNCO) is a prestigious national chemistry competition organized by the American Chemical Society that challenges high school students with exceptional aptitude in chemistry. Students begin by taking a local or regional exam testing their knowledge of chemistry concepts, problem-solving, and analytical skills, with top scorers advancing through increasingly difficult rounds. The highest-performing students earn a spot on the U.S. team and compete at the International Chemistry Olympiad, one of the most elite science competitions in the world. It is one of the most rigorous and rewarding chemistry competitions available to high school students.

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Skills You'll Build

Scientific Research

Designing studies, testing hypotheses, and drawing evidence-based conclusions.

Critical Thinking

Evaluating information carefully before drawing a conclusion or making a decision.

Problem Solving

Breaking down a challenge and working through it methodically to a solution.

Mathematical Modeling

Using equations and formulas to represent and predict real-world situations.

Lab Techniques

Running experiments safely and accurately using real scientific equipment and procedures.

Related Careers

Chemist

Direct preparation for chemistry careers through advanced problem-solving and experimental design competition.

Chemical Engineer

Applies chemistry knowledge to solve complex problems, a core competency for chemical engineering.

Physician

Strong chemistry foundation supports medical school prerequisites and biochemistry understanding.

Pharmacist

Chemistry expertise is essential for understanding drug composition and pharmaceutical development.

Quick Facts

Competitiveness
Highly Selective
Best For
Chemistry-focused students

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