Homi Bhabha Exam Class 6 Pattern 2026-27: Stage-wise Guide

The Homi Bhabha exam Class 6 pattern has four stages, and only the first one is a written paper. The Dr. Homi Bhabha Balvaidnyanik Competition is conducted by the Greater Bombay Science Teachers' Association (GBSTA). It moves Std 6 students from a 100-question MCQ test to a practical test, a general interview and an action research project interview. Each stage filters the group further, and marks from the written test are carried into the final medal score.

This page explains the 2026-27 pattern stage by stage: questions, marks, duration, negative marking, how selection works and how the final score is calculated. It also covers what the pattern means for your time and effort, with worked examples. All figures are from GBSTA's official 2026-27 information.

Homi Bhabha Exam Class 6 Pattern

The competition runs in English and Marathi. The medium a student picks at registration applies to every stage, including the practical and both interviews, and cannot be changed later.

Written Test Pattern

The written test is the stage every registered student takes. For 2026-27, it is on Saturday, 28 November 2026, in the 2.00 pm to 4.00 pm slot. The paper itself is 90 minutes long.

Section-wise Weightage in the Written Test

The paper is not divided into timed sections. Instead, GBSTA states an approximate share of questions from each source. Most content comes from Maharashtra State Board science textbooks, with related content from CBSE, ICSE and IB books.

The question counts are approximate because GBSTA gives percentages, not fixed numbers. For the chapters and topics behind each row.

Qualifying for Phase II

Phase I results are worked out region-wise. In each region, the top 7.5% of students are selected for the practical test, ranked separately in three groups: Marathi medium, English medium (Maharashtra State Board) and English medium (all other boards). Selected students receive a merit certificate.

The 2026-27 circular adds that other students scoring above 35 marks receive a passing certificate. So even a student who does not reach the practical leaves Phase I with a certificate, provided they cross that mark.

Marking Scheme and Negative Marking

Each written test question carries one mark. GBSTA's official pages and the 2026-27 information circular do not mention any negative marking, and they do not describe a penalty for unanswered questions. Read the instructions printed on your question paper on exam day, since those are final.

In practice, this affects how you treat a question you are unsure about. If there is no deduction, a reasoned guess between two likely options costs nothing and can only add marks. Leaving a question blank gives you zero either way.

GBSTA does not allow rechecking of marks at any stage. Treat each round as final, and check your answers within the time limit rather than counting on a review later.

Phase II: Practical Test Pattern

The Std 6 practical test is on 10 January 2027. It is a fast, hands-on round. Students move through five experiment stations and get six minutes at each.

GBSTA's sample practicals for Std 6 show the kind of tasks to expect:

• Measurement: Using a ruler and thread to find a length or radius, weighing objects, finding surface area or counting pendulum oscillations.

• Observation and identification: Looking at plant parts such as tendrils, or animal specimens such as insects, fish and earthworms, and naming features.

• Classification: Sorting organisms (for example, chordates and non-chordates) or identifying types of levers.

• Diagrams and data: Drawing and labelling specimens, building food chains or reading a simple table.

You can view the official samples on GBSTA's practical examination information page.

Qualifying for Phases III and IV

After the practical, GBSTA adds 30% of your Phase I marks to your Phase II marks. This gives a score out of 60. The top 10% on this combined score move to the interviews.

Phase III and Phase IV: Interview Rounds

Both interview rounds are held on the same day. For 2026-27, that date is 14 March 2027.

The action research project report must be submitted by 8 March 2027 (till midnight). Students choose a topic from GBSTA's published list for Std 6, study it through simple observation or experiments, and then explain their work to the panel. The interview checks whether the student actually did the work and understands it, so a clear account of method and observations matters more than a polished file.

How the Final Score and Medals Are Decided

The final medal score combines all four stages:

Final score = 30% of Phase I marks + Phase II marks + Phase III marks + Phase IV marks (out of 120)

Every student who reaches the interviews receives a medal. GBSTA's 2026-27 circular lists these awards:

Older pages still show scholarships of Rs. 3,000, Rs. 2,000 and Rs. 1,000. Those were the earlier amounts, so go by the 2026-27 circular.

Worked Example: Two Students, Same Practical

Student A scores 90 in the written test, and Student B scores 70. Both scored well enough to reach the practical, and both score 22 out of 30 there.

• Carry-forward marks: Student A carries 27 marks (30% of 90). Student B carries 21 (30% of 70). The 20-mark gap in Phase I shrinks to a 6-mark gap.

• Interview selection score: Student A has 27 + 22 = 49 out of 60. Student B has 21 + 22 = 43 out of 60.

• Final score: Suppose both reach the interviews, where Student A scores 20 in each round and Student B scores 23 in each. Both finish on 89: Student A with 27 + 22 + 20 + 20, and Student B with 21 + 22 + 23 + 23.

The lesson is that a strong written score gives you a head start, but the practical and interviews carry 90 of the 120 final marks. A student who prepares only for November is leaving most of the medal score to chance.

What the Homi Bhabha Class 6 Pattern Means for Your Preparation

• Speed matters in Phase I: 100 questions in 90 minutes gives you about 54 seconds per question. Many Class 6 students lose marks by running out of time, not by lacking knowledge.

• Std 6 content carries the paper: About 60 questions come from Std 6 science. A weak Std 6 base cannot be covered by strong general knowledge.

• The cut is steep: Only the top 7.5% in your region and medium group reach the practical. Your target is a high rank, not just a pass.

• Hands-on skill is tested separately: The practical gives six minutes per task. Students who have only read about measurement or specimens tend to freeze at the station.

• Explaining counts: The two interviews carry 60 marks together. A student who can explain a project clearly in a few minutes gains a real advantage.

Time Management for the Written Test

A simple three-pass plan works well for a 90-minute, 100-question paper:

1. First pass (about 55 minutes): Answer every question you are confident about. Mark the ones that need more thought and move on quickly.

2. Second pass (about 25 minutes): Return to the marked questions. Eliminate clearly wrong options and choose between what remains.

3. Final check (about 10 minutes): Make sure every answer is marked in the right place and no question has been missed.

Practise this plan in full-length timed tests before November. Your first few attempts will show whether you need more time on the first pass or the second.

For timed practice in the current pattern, you can take Homi Bhabha Class 6 online mock tests on Testkart and use the analysis to see which source (Std 4, 5, 6 or general science) costs you the most marks. Pair them with previous year papers to get used to the real difficulty level.

Key Changes in the 2026-27 Pattern and Schedule

• Written test date: 28 November 2026, later in the year than the 8 November date of the 2025-26 cycle.

• Std 6 practical: 10 January 2027, with the practical result due on 15 February 2027.

• Scholarships: Raised to Rs. 5,000, Rs. 3,000 and Rs. 2,000 for gold, silver and bronze.

• Passing certificate: The 2026-27 circular states that students above 35 marks who do not reach Phase II receive a passing certificate.

• Structure unchanged: The four stages, marks, durations and the 30% carry-forward stay the same as the previous cycle.

Some pages still describe the written test as a 2-hour paper, the practical as about an hour and the viva as about 15 minutes. Those figures do not match GBSTA's official pattern of 90 minutes, 30 minutes and 5 to 7 minutes. GBSTA can change the schedule or mode of any stage, so check the official Homi Bhabha exams page on msta.in before each round.