environmental
action
activist
child
children
conservation project
cooperation
ecology
education
elementary school students
environment
environmentalism
environmentalist
fff
fridays for future
garbage
grundschule
holiday camp
kids
learn
lessons
nature conservation
outside
people
pollution
primary school
project
pupil
recycling
school
school children
social
social studies
summer camp
sustainability
symbol
trash
voluntary
volunteer
volunteering
youth