Boston college EWBJunior science & Engineeringcompetition 2027

For Grades K-5 Students

Priority Registration DeadlineDecember 4, 2026

Step into:

Engineering
Big Ideas
Science

This competition is ideal for students who:

  • Are developing interest in STEM
  • Show curiosity about how the world works
  • Benefit from structured, engaging challenges

Summary

Preliminary Round

Online challenge with multiple choice and fill-in the blank questions

Semi-Final Round

Poster/video to present a science solution

Final Round

Present science solution live on zoom

Team Size

2-5 students from the same school

Age categories

Lower Primary (Grades K-2) and Upper Primary (Grades 3-5)

World STEM League

Option to participate in World STEM League

About Boston College Engineers Without Borders

Engineers Without Borders is a non-profit which seeks to develop medical, sanitation, and water infrastructure with countries around the globe, and works with them to find solutions that will promote equity and improve quality of life in their communities.

The Boston College chapter of Engineers Without Borders chapter is a student-run organization focused on using Human-Centered Engineering practices to support water distribution and extraction infrastructure with local partners in Mkutani, Tanzania. From Chestnut Hill to Mkutani, we are a team of student engineers, project managers, and advocates committed to building infrastructure that empowers communities and creates tangible change across the globe.

About the World STEM League

BC EWB Junior Science & Engineering Competition is part of the World STEM League. In the League, students compete across multiple competitions throughout the League Year, allowing them to:

  • practice repeatedly
  • track their improvement over time
  • collaborate with teammates across competitions

This creates a cycle of growth: compete, learn, refine, and improve.

Fostering Curiosity and Real-World STEM Learning

The Boston College EWB Junior Science & Engineering Competition is designed as an enriching introduction to STEM that nurtures curiosity, reinforces classroom learning, and encourages students to think beyond the textbook.

The experience begins with a grade-level-appropriate online challenge aligned with core math and science concepts. Students then engage in developing solutions to real-world problems through drawing, building, and creative thinking, before sharing their ideas through a poster for the lower primary category and simple presentations for the upper primary category.

Each stage is intentionally structured to build confidence, develop problem-solving skills, and foster interest and curiosity in STEM.

Why Join the Boston College EWB Junior Competition?

Build STEM confidence

Encourage curiosity and develop comfort with problem-solving

Reinforce math & science learning

Deepen understanding by applying classroom knowledge

Develop global awareness

Explore real-world challenges in an age-appropriate way

How does the challenge work?

Team size

Team size: 2-5 students per team (all team members must be from the same school)

Age Categories

Lower Primary School Category

Grades K–2

Upper Primary School Category

Grades 3–5

What do teams need to do?

Preliminary round: Online challenge

An online challenge designed to assess grade-level math and science understanding through grade-level appropriate questions.

Students may complete the challenge with guidance from a teacher or parent for technical support (e.g., accessing the platform or submitting responses), but all answers should reflect the student’s own thinking.


Semi-final round: Poster / video

Lower Primary Category: Semi-finalist teams will have one week to create a poster to present their solution to a science problem.

Upper Primary Category: Semi-finalist teams will have one week to develop a solution and present their ideas through a short (5-minute) recorded video.


Final round: Live Zoom presentation

Finalist teams will have one week to refine and improve their solutions from the semi-final round based on judges’ feedback, and present their final solution to a judging panel composed of Boston College student engineers.

Key dates and deadlines

Registration Deadlines and Participation Fees

Priority Deadline

Deadline: December 4, 2026

Fees: US$25 per student

Regular Deadline

Deadline: January 4, 2027

Fees: US$35 per student

Late Deadline

Deadline: February 4, 2027

Fees: US$45 per student

REGISTER NOW!

Competition format

Preliminary round: Online Challenge

The preliminary round is open to all registered teams worldwide

February 6, 2027

Time
  • Asia Pacific: 12:00 noon Tokyo Time
  • Europe, Middle East, Africa: 9:00 am London Time
  • North America, South America: 11:00 am New York Time
Duration
  • Lower Primary School Category: 45 minutes
  • Upper Primary School Category: 1 hour
Format :
  • Online challenge (multiple choice, fill in the blanks, and free-response questions)
Lower Primary School Category (Grades K–2):

Focuses on number awareness and foundational math concepts, along with simple logic questions that develop early reasoning skills.

Upper Primary School Category (Grades 3–5):

Based on math and science concepts students are learning in school, combined with logic problems that build confidence and problem-solving skills.

  • Each team member will individually attempt the same set of challenge
  • The top two scores will be used to calculate the team’s total score

Semi-final round: Poster / video

The top 3 performing teams from each grade level in the preliminary round (18 teams in total) will be invited to compete in the global semi-final round

Deadline: 11:59pm Eastern Time (New York Time), February 20, 2027

Format :
Lower Primary School Category (Grades K–2):

Semi-finalist teams will have one week to create a poster with a solution to a science problem.

Upper Primary School Category (Grades 3–5):

Semi-finalist teams will have one week to develop a solution to a science problem and present their work through a recorded 5-minute video.

Final round: live Zoom presentation

The top 5 performing team from the preliminary round in each of the Lower Primary and Upper Primary Categories will be invited to compete in the global final round

March 13, 2027 10:00am Eastern Time (New York Time)

Finalist teams will have one week to refine and improve their solutions from the semi-final round based on judges’ feedback, and present their final solution to a judging panel composed of Boston College student engineers.

Recognition

All participants will receive a Certificate for participation

Preliminary Round

HonorHonor
MeritMerit
Semi FinalistSemi Finalist

Semi- Final Round

FinalistFinalist
Individual Category

Top participants will receive individual honors, even if their teams may not win any awards.

Team category

Teams will be awarded based on the sum of their two highest individual scores.

Final Round

Global ChampionGlobal Champion
Global 1st Runner UpGlobal 1st Runner Up
Global 2nd Runner UpGlobal 2nd Runner Up

Join the Challenge

This competition is more than a contest; it’s a gateway to the world of engineering innovation. Register now to begin your journey into the exciting field of engineering, where you’ll apply creative problem-solving and technical skills to real-world challenges.


Fee Waiver Policy

A fee waiver is available for individual low-income students. To request one, please ask your school counselor or principal to email [email protected] from their official school email with the subject line "Fee Waiver Request." The email should include your email address and confirmation that you require a waiver.

All fee waivers must be requested before the regular deadline.

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