Little BIG Idea


The big competition for inventive little kids

Thinking of entering littleBIGidea in 2019?Register your interest and we'll keep you posted with competition announcements for this year. 

Register your interest

Know what these three things have in common?

Plastic banknotes

Plastic banknotes



Bionic ear

The bionic ear
(Cochlear implant)

They're all Australian inventions!



Icy poles


Braille system

The Braille system

And these three things were all invented by... kids!

How littleBIGidea works

So who won in 2018? Find out now!Our 12 finalists were announced on 16 October and the three winners have now been declared. Discover this year's top entries - and find out who's going to NASA!

See our winners & finalists

Conditions apply – see full Terms and conditions

Promotion starts 9 am AEST 22/07/2019. Online entries close 11:59 pm AEST 13/09/19. Mail entries must be sent by 13/09/19 & received by last mail 20/09/19. Open to Australian residents who are students in Grades 3 to Year 8 in a primary or secondary school (or are home schooled in these year levels) in Australia.  Must have consent from parent/guardian and teacher to enter. Limit 1 entry per person. Group entries not accepted. Entries will be divided into categories: Grades 3 & 4; Grades 5 & 6; and Grades 7 & 8. Finalists will be announced week commencing 7 October 2019. Winners will be announced week commencing 18 November 2019. Each major prize trip winner must travel to USA by 30 June 2020. See Terms and conditions for full details. Promoter is Origin Energy Retail Limited (ABN 22 078 868 425) of Level 6, 321 Exhibition Street Melbourne VIC 3000.