From team Zenith in Brazil:
"We have a project called "Garatea E" in which we send experiments designed by children and adolescents from all over Brazil to the stratosphere.
We have already done 3 editions of this project and in the last one we had participants from all regions of Brazil and more than 400 people were present on the launch day!
As you know, Brazil is a very poor country and here many people have don't have contact with science and technologies so this project is a way of trying to bring these people closer to the technological development of our country!
We have a video of our latest educational launch! unfortunately it is only in portuguese (but youtube offers an ability to translate subtitles to other languages)