Official Rules & Terms

OurEcho Challenge submission entries open November 3, 2022 to student teams in the US (Grades 5-9) and the UK (Years 6-10).

UK entries must be submitted by March 3, 2023, 23:59 GMT.

US entries must be submitted by March 3, 2023, 11:59 PM EASTERN.

Late March 2023: 10 finalist teams will be chosen and notified of status.

In order to ensure that teams are meeting the basic requirements for a qualifying entry, we encourage you to use the Project Planning Worksheet, Challenge Checklist & Winning Tips and review the respective Official Rules and Terms below prior to submitting your OurEcho Challenge entry.

EarthEcho International reserves the right in its sole discretion to further modify the timing of the OurEcho Challenge and/or the format/timing of the Finalist Event. If such changes are deemed prudent, the new timing and/or format will be noted in the Official Rules and on this website.


The OurEcho Challenge is offered only within the 50 United States and the District of Columbia. Middle school-aged students (attend school in Grade 5 through Grade 9 during the Entry Period or be Grade 5 through Grade 9 equivalent age as determined by Administrator in their sole discretion for students who are not in a traditionally-graded educational environment) are encouraged to work in teams of 1-3.

Given the age of students, an adult (21+) MUST submit each entry online on behalf of the teams they are mentoring. Mentors can be traditional educators, parents, and/or adult facilitators of more informal learning environments.

All students will require a permission form signed by their legal guardian to be uploaded with their entry.

Any former member of an OurEcho Challenge Finalist Team must not re-use their prior OurEcho Challenge finalist entry materials to enter the OurEcho Challenge.