Free science challenges your class can run this term
Arludo’s challenges are complete learning experiences — not worksheets. Students investigate, design, and submit. Teachers get everything they need to run them. Free, forever, for every class.


This isn’t a fun activity. It’s a learning experience.
Every Arludo challenge is built on the discovery-discussion loop: students investigate through structured play, then teachers debrief. The challenge creates the conditions for the conversation. The conversation creates the understanding. Each challenge gives you: • A curriculum-aligned brief — what students will do, learn, and submit • Supporting resources — everything you need to facilitate, nothing you need to create • A real submission goal — students work toward something that matters, not just completion • A prize for the best submission — a year’s Science Portal subscription for the winning school
How to run an Arludo challenge
Sign up free
Create a free Science Portal account. Takes two minutes. No student accounts required, no IT setup needed.
Register your class
Join the active challenge. You’ll receive the full teacher resource pack — brief, facilitation guide, submission criteria, and assessment rubric
Run the challenge
Students investigate, play, design, and build. You facilitate and debrief. The challenge runs over 6-7 lessons — you choose how many sessions to dedicate
Submit and discover
Students submit their work through the platform. The best submissions are judged and prizes awarded. Every student receives a certificate of participation.
Current challenges — all free, all open
Start up one of our challenges whenever suits you. If it aligns to our challenge schedule each year, you can enter your students' submissions to win a free annual Arludo license for your class.
The Adaptations Challenge
Years 3-6
Why do animals look the way they do? Students investigate the science of survival — and discover that every feature has a reason.
See the ChallengeThe Game Design Challenge
Years 3-6
What does it take to design a game that actually works? Students apply engineering thinking to build something real.
See the ChallengeThe Invertebrate Conservation Challenge
Years 3-6
The animals nobody notices are the ones holding ecosystems together. Students investigate why they matter — and design solutions to protect them.
See the ChallengeThe Engineering Design Process
NewYears 3-6
A structured approach to solving real problems. Students define, brainstorm, build, test, and improve — like real engineers.
See the Challenge
Real prizes. Real recognition.
The best submission from each challenge wins a year’s Science Portal subscription for the school — giving every teacher in the building access to the full control layer, for free. Every student who participates receives a certificate of completion. Every teacher who runs a challenge with their class gets recognition on the Arludo platform.
More challenges on the way
We’re building more challenges every year — each one designed around a different area of science, a different year-level band, and a different kind of investigation. Sign up to the Science Portal to be notified when new challenges open.
