Brazil

Instituto Butantan

Avenida Vital Brasil, 1500

05503900 Sao Paulo, Sao Paulo, Brazil

Note:

www.butantan.gov.br/

Typically, we apply three rounds of examinations selecting our Olympic delegation. The first round takes place in the registered schools and is applied by the high-school teachers. The first test has 30 multiple choice questions and has only eliminatory character. The first phase usually occurs in late March.

After the registration of students in our online system, short listing the selected students for the second phase is done. Our guidelines state that approximately 5% of the best students are qualified for the second phase of the NBO.

The second round contains 100 multiple choice questions and is applied by state coordinators throughout Brazil. After its application, answer sheets are sent online to Instituto Butantan for grading. The sixteen top-ranked students are selected for the third and final round.

The third round takes place at Instituto Butantan and consists of one week of practical training and assessments. The top four students at this round are selected to participate in the IBO. The fifth to eighth placed are selected to participate in the Ibero-American Olympiad Biology.

In 2022, approximately 100,000 students from more than 2,100 schools participated in the first round of our NBO.

Round 1: 30 multiple choice questions. Students take the exam at their own schools

Round 2: 100 multiple choice questions. Students take the exam at selected schools in their home state

Round 3: Written and practical exams. The exams are held at Instituto Butantan

The training done by students in the first and second rounds depends on the students and their schools, and is likely widely variable. In the third round, which may be considered a training camp, the students go through one week of practical training.

There are currently no specific materials developed for the training of students. In our homepage, many tests of former NBOs are available to better prepare students for the NBO rounds.

The first round does not award students any prize.

The second round awards a total of 150 medals (gold/silver/bronze).

The third round selects the students that will participate in International and regional Olympiads, but does not award students any prize.

All participating students of our NBO receive certificates.

Some public Universities are offering entrance to National and International Scientific Olympiad medalists, using a composite score of all medals won by the student.

The OBB applies the same rules as IBO regarding students who can participate. Only students that are duly enrolled in high school, as well as a 19-year limit, are allowed to participate in the OBB.

In Brazil, the standard school year starts at late January and ends at late November.

Varies, but is commonly 4 hours/week.

Varies, but is commonly 30 hours/week.

• 2020: 140000 students from 0 schools (0% of eligible schools)
• 2019: 125000 students from 3000 schools (10% of eligible schools)
• 2018: 45000 students from 0 schools (0% of eligible schools)
• 2017: 42000 students from 0 schools (0% of eligible schools)
• 2016: 65000 students from 0 schools (0% of eligible schools)
• 2015: 58000 students from 0 schools (0% of eligible schools)
• 2014: 70000 students from 0 schools (0% of eligible schools)
• 2013: 55000 students from 0 schools (0% of eligible schools)
• 2012: 70000 students from 0 schools (0% of eligible schools)
• 2011: 30000 students from 0 schools (0% of eligible schools)
• 2010: 11000 students from 0 schools (0% of eligible schools)
• 2009: 17000 students from 0 schools (0% of eligible schools)
• 2008: 25000 students from 0 schools (0% of eligible schools)
• 2007: 20000 students from 0 schools (0% of eligible schools)
• 2006: 18000 students from 0 schools (0% of eligible schools)
• 2005: 7500 students from 0 schools (0% of eligible schools)

In 2020, only the first round of the OBB took place, with XXX000 participants.

The host institution (Instituto Butantan) issues press releases and social media posts.