You are here

Avogadro Exam

The exam

To recognize and reward achievement in a first high school Chemistry course, Waterloo's Department of Chemistry has devised the Avogadro Exam. The 30th annual Avogadro Exam is to be written on Thursday, May 18, 2017 during one 75-minute period.

The exam will cover material that a well-read junior high school chemistry student is likely to have come across in the course of studies. Students may expect to find a few probing and demanding questions on some of the main topics of high school chemistry.

Certain mathematical skills closely related to the study of chemistry may be tested, and there will be a few questions on chemical topics not normally covered in high school. A scientific calculator is required. 

The Avogadro Exam consists of 40 multiple-choice questions, some easy, some tough, under the general headings: structure of matter, bonding, reactions, solutions, and gases, and a general knowledge of current affairs.

Who may write?

Ontario Grade 11 Chemistry students and students anywhere at a similar level (100 instructional hours in Chemistry) are eligible to write. This exam is for students who have completed, or will complete by June, one year of high school Chemistry.

In 2016 about 5273 students from 339 schools wrote the Avogadro Examination. Names of the top 200 students were published in Chem 13 News magazine, issue #424 (Canadian subscribers only).

Exam order information

The deadline for ordering exams is Friday, March 31, 2017. Orders must be placed by a teacher at an accredited high school, unless otherwise authorized.

All exam orders are submitted online starting in February 2017. Exam costs are provided on the online order form.


All correspondence about the exam, exam results and prizes should be addressed to Dr. C. Bissonnette (, Department of Chemistry, University of Waterloo, Waterloo ON N2L 3G1.

Prizes and certificates

Prizes and/or certificates are given to the top students whose exam performance is best.

We reserve the right to restrict the number of prizes offered outside Canada.