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ISO Sample Papers 2022

The ISO is a group of worldwide annual competitions in various areas of the formal sciences, natural sciences, and social sciences. From each participating country, only the 4-6 best high school students are selected through International Science Olympiads, except the IOL, which allows only two teams per country.

ISO Sample Papers

The IOI allows two teams from the hosting country, and the IJSO is designed for junior secondary students. The early editions of the Olympiads were limited to the Eastern Bloc, but later they gradually spread to the other countries.

International Science Olympiad

ISO aims to promote a career in science, challenge the brightest students from around the world, and compare each country's various teaching systems. Although the competitions are aimed at secondary school students, the standards of the exams are extremely high.

In several countries, achieving a high rank in any ISO guarantees access to a university of choice and a fellowship. For example, the Massachusetts Institute of Technology famously recruits many ISO medalists to its incoming undergraduate class every year.

Science Olympiads are international student competitions. There are 4 commonly recognized subjects in the International Science Olympiad conducted by the HBCSE Exam.

International Science Olympiad

Science

Symbol

Year

International Physics Olympiad

IPhO

since 1967

International Chemistry Olympiad

IChO

since 1968

International Biology Olympiad

IBO

since 1990

International Astronomy Olympiad

IAO

since 1996

International Junior Science Olympiad

IJSO

since 2004

Steps to Download ISO Sample Papers

 Here are the steps to download ISO sample papers for all the subjects.

  • Open the official website of HBCSE.
  • Open Olympiads, and on the top, click on "How to Prepare".
  • Once you click there, a drop-down list will appear.
  • From the list, select "Past Papers/Sample Papers."
  • A new window will open. Select the subject and click on which year's paper you want to see.
  • Once you click on the paper link, students can download the pdf files of previous year papers.

Download ISO Sample Papers

Click on the link to download the ISO sample paper:

ISO Sample Papers

Subject

2020

2019

2018

Astronomy

INAO

INAO

INAO

Biology

INBO

INBO

INBO

Chemistry

INChO

INChO

INChO

Junior Science

INJSO

INJSO

INJSO

Physics

INPhO

INPhO

INPhO

Download ISO Answer Key

Click on the link to download the ISO answer key.

ISO Answer Key

Subject

2020

2019

2018

Astronomy

INAO

INAO

INAO

Biology

INBO

INBO

INBO

Chemistry

INChO

INChO

INChO

Junior Science

INJSO

INJSO

INJSO

Physics

INPhO

INPhO

INPhO

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