National Geographic Kids!: http://kids.nationalgeographic.com/kids/places/find/canada/
Fact Monster: http://www.factmonster.com/ipka/A0107386.html
Brittanica.com: http://kids.britannica.com/elementary/article-345661/Canada?#9345661.toc
CIA World Fact Book: https://www.cia.gov/library/publications/the-world-factbook/geos/ca.html
Cyber-North: http://www.cyber-north.com/canada/fact.html