Useful Websites

For kids: http://eekwi.org/earth/aliens.htm

A field guide to exotic invaders: http://www.seagrant.umn.edu/ais/fieldguide

About PlayCleanGo: http://www.playcleango.org/
Backyard conservation that you can do at home:  
https://www.homeadvisor.com/r/home-science-backyard-conservation/.