Registrations open November 2026•Submissions close 14 Feb 2027•Finalists announced 21 Feb 2027•20–21 Mar 2027 · IISc Bengaluru• Registrations open November 2026•Submissions close 14 Feb 2027•Finalists announced 21 Feb 2027•20–21 Mar 2027 · IISc Bengaluru•
Home
Workshops
Competitions
Schedule
Sponsors & Schools FAQ
About
StudentsRegister
Parents & TeachersWebinar
Finalists and judges at the STEMXplore finale, IISc Bengaluru
Finalists get to present at IISc
Winners holding trophies
Three national competitions · Grades 4–12 · free to enter
A judge addressing students
Ask · Build · Present — a Workshop Day and a Grand Finale, both on campus
20 – 21 March 2027 • IISc Bengaluru • Grades 4–12

National STEM symposium for school students

Celebrating scientific thinking and innovation.
Free To Enter

Parents & TeachersWebinar
With the support of STEMonsters
IEEE PES Bangalore ChapterKnowledge Partner · logo
Indian Institute of Science
Impact

Over five editions since 2022

0student registrations
0schools
0states & UTs + countries
0contest entries in 2026

Numbers are cumulative across editions unless stated. 2026 alone drew 121 contest entries and 22 finalists to IISc.

Judged by researchers and engineers from India's leading institutions

2027 panel announced in January

Past judges from IIT Delhi · IIT Mandi · IISc Bengaluru · CSIR-NPL · GE Aerospace · IBM · Synopsys · Tohoku University · IIM Bangalore · IEEE PES & SPS Bangalore

About

A national stage for school students to do science

STEMXplore started in 2022 as an online stage for students to explain science in their own words. It is now a two-day national symposium at IISc Bengaluru, run by STEMonsters — first principles, hands-on, inquiry-led.

AskBuildPresent
Students at workphoto placeholder — hands-on, mid-build
6th edition · 2027since 2022
Participate

Two days. Come for one, or both.

Workshop photochildren building — placeholder
1Workshop DaySat 20 March 2027 · 9:15 – 15:00

Discover, question, take apart

Paper Electronics (ages 9–14) in the morning, Reverse Engineering (all ages) after lunch, and a webinar for parents and teachers — all on the IISc campus.

Limited seats · first come, first served₹99 token registrationCertificate on the dayWebinar: free · in person or online
Finalists at IISc
2Grand FinaleSun 21 March 2027 · 10:00 – 15:00

Build, speak, present

Three national competitions for Grades 4–12. Enter online by 14 February; shortlisted finalists present to the judges at IISc.

Free to enterTravel reimbursed for finalistsKits · medals · certificates
Grand Finale · Sunday 21 March 2027

Three competitions. Pick one — or more.

Free to enter from anywhere in India. Finalists present at IISc.

Competition 1IndividualJr · Grades 6–8Sr · Grades 9–12Submissions close 14 Feb 2027

Let's Talk STEM

A 3-minute talk on a STEM idea you find fascinating — explained so clearly that a classmate, a parent and a professor would all learn something. The original STEMXplore event, now in its sixth year.

Eligibility
Individual students. Junior: Grades 6–8. Senior: Grades 9–12. Judged separately.
Format
Stage 1: upload a 3-minute video talk by 14 Feb. Stage 2 (finalists): live 3-minute talk + Q&A with judges at IISc.
Topic
Any science, technology, engineering or mathematics concept — a phenomenon, a discovery, a question you can't stop thinking about.

Rules

  • One speaker, one continuous take; no edits, music or captions beyond a title card.
  • Max 3 minutes; talks over 3:15 are not judged.
  • Props, a whiteboard or a single slide are allowed; reading from a script is not.
  • Your own words. Cite any source you quote.

Judging rubric

Rubric placeholderScientific accuracy · Clarity & structure · Originality · Delivery · Q&A (finals)
Competition 2Teams of up to 4Grade 7+Bonus for teams with girlsSubmissions close 14 Feb 2027

Story Behind My Tech

Build a working model that solves a real problem — and tell the story of how you got there: the need you noticed, the science you used, the versions that failed. Judges score the journey as much as the device.

Eligibility
Teams of 1–4 students, Grade 7 and above. Mixed-grade teams allowed. Teams that include girls earn bonus points.
Format
Stage 1: a 4-minute video of the working model + a 2-page story, by 14 Feb. Stage 2 (finalists): live demo and 5-minute presentation at IISc.
Theme
Technology for everyday life — home, school, community, environment. Hardware, software or both.

Rules

  • The model must work — a demonstration of the core function is required.
  • Kits and microcontrollers are allowed; the design and integration must be the team's own.
  • The story must name the problem, the science, at least one failed iteration and what you learned.
  • Adult help is limited to safety and sourcing; declare it in your story.

Judging rubric

Rubric placeholderProblem relevance · Working prototype · Scientific reasoning · Iteration · Storytelling · Teamwork
Competition 3Teams of up to 4Grades 4–6Cardboard engineeringSubmissions close 14 Feb 2027

STEM Lab Challenge — Science Saved My Day: Simple Machines

Imagine a small everyday problem — a heavy schoolbag, a shelf you can't reach, a door that slams — and solve it with a cardboard prototype that uses a lever, pulley, wheel & axle, inclined plane, wedge or screw.

Eligibility
Teams of 1–4 students in Grades 4–6.
Format
Stage 1: a 3-minute video showing the problem, the prototype in action and which simple machine does the work, plus up to 3 photos, by 14 Feb. Stage 2 (finalists): live showcase at IISc.
Materials
Cardboard, paper, string, straws, skewers, bottle caps, tape and glue. No motors or electronics.

Rules

  • Built by the students; adults may supervise cutting only.
  • At least one simple machine clearly identified and explained in the video.
  • Footprint no larger than 60 × 60 cm.
  • Bring the prototype (or a rebuilt copy) to IISc if shortlisted.

Judging rubric

Rubric placeholderDoes it work? · Correct use of a simple machine · Creativity · Build quality · Explanation
Submissions close 14 February 2027Finalists announced 21 Feb · one student may enter more than one competition
IISc Bengaluru campuswide, grand photo placeholder — Main Building / avenue
Indian Institute of Science

Finalists get to present at IISc Bengaluru

Both days happen on the campus of the Indian Institute of Science — India's foremost research institution.

How to get there →
How it works

Two tracks, a few steps each

Workshop Day

Saturday 20 March · students register for the full day
  1. Register onlineOne registration per student. Parents and teachers register free for the webinar.
  2. Get your seatConfirmation by email and WhatsApp, in order of registration.
  3. Come to IISc on 20 MarchRegistration from 9:15. Under-12s with an adult.
  4. Build, then collect your certificateBoth workshops; certificates handed out at 15:00.

Grand Finale

Three competitions · free · finale Sunday 21 March
  1. Register for a competitionGuidelines and rubric arrive by email.
  2. Upload your entry by 14 FebruaryTalk video · model + story · prototype video.
  3. Finalists announced 21 FebruaryJudges shortlist against the rubric.
  4. Present at IISc on 21 MarchLive before the judges; prizes and certificates.
Important dates

Mark the calendar

Registrations openNovember 2026
Workshop Day, webinar and all three competitions open on this page.
Submissions close14 February 2027
Upload by midnight IST. Late entries are not accepted.
Finalists announced21 February 2027
By email and on this page, with travel details.
Workshop DaySat 20 March · IISc
9:15 – 15:00. Paper Electronics, the webinar, Reverse Engineering.
Grand FinaleSun 21 March · IISc
10:00 – 15:00. Finals, showcase, prizes.
Over the Years

Five editions, one idea: let students do science

5th edition · 8 & 15 March 2026

The year STEMXplore came to IISc

121contest entries
22finalists at IISc
4countries

The first in-person finale, hosted at the Indian Institute of Science with IEEE PES and SPS Bangalore as partners. Let's Talk STEM, Story Behind My Tech, the STEM Lab Contest and a Jr. Hackathon — whose winning entry came from Singapore. Judges from IITs, GE Aerospace and IIM Bangalore.

Judges 2026

Judges placeholdernames · institutions

What participants said

★★★★★

“Student quote placeholder — one or two sentences about presenting at IISc.”

Student nameLet's Talk STEM finalist 2026
★★★★★

“Parent quote placeholder — on what changed in how their child talks about science.”

Parent nameParent of a 2026 finalist
★★★★★

“Judge quote placeholder — on the quality of the students' thinking.”

Judge nameJudge, 2025 & 2026
★★★★★

“Teacher quote placeholder — on bringing a class to STEMXplore.”

Teacher namePartner school
Partners 2027

Backed by institutions that build India's engineers

IEEE PES Bangalore Chapter

Knowledge Partner

The Bangalore Chapter of the IEEE Power & Energy Society brings judges, mentors and technical guidance to the competitions and workshops.

IISc Bengaluru

Venue Partner

India's foremost research institution hosts both days of STEMXplore 2027 on its Bengaluru campus.

School groupphoto placeholder
For schools

A progressive school looking to participate?

Bring your students to the competitions, run in-school rounds, and be showcased as a partner school.

WhatsApp us
School logo
School logo
School logo
School logo
School logo
School logo
School logo
School logo
Schedule

Two days at IISc

  • Registration & welcome kits
  • Paper Electronics Workshop Ages 9–14
  • Webinar: How much is too much — of AI — for students? Parents & teachers · in person or online
  • Tea
  • Lunch
  • Reverse Engineering Workshop Certificates at the end
  • Welcome & opening remarks
  • Let's Talk STEM finals Junior and Senior · live talks + Q&A
  • STEM Lab Challenge showcase Grades 4–6
  • Story Behind My Tech finals Live demos
  • Prizes & wrap-up
FAQ

Questions, answered

Who can participate?

Students in Grades 4–12, from any school in India or abroad. Competitions by grade band: STEM Lab Challenge 4–6, Let's Talk STEM 6–12 (Junior 6–8, Senior 9–12), Story Behind My Tech 7+. The Workshop Day is open to anyone who registers.

How much does it cost?

Competitions are free at every stage; outstation finalists have travel reimbursed on proof. The Workshop Day has a ₹99 token registration per student, which goes towards seats for partner schools. The webinar is free.

What are the team rules?

Let's Talk STEM is individual. The other two are team events for up to 4 students within the grade band. Teams with girls get bonus points in Story Behind My Tech. One student may enter more than one competition.

How does travel work for finalists?

Finalists announced on 21 February are invited to IISc on 21 March. Travel is reimbursed against tickets; details come with the invitation. Under-18s must be accompanied by a parent, guardian or teacher.

How do I register?

Registrations open in November 2026 on this page — one form for students, one for parents and teachers (webinar). Schools: WhatsApp +91 97411 65171.

Registrations open in November

Get a WhatsApp when they do — and an invite to the online information session in early December.

STEMXplore 2027Submissions close 14 FebRegisterWebinar