Simplify the following text for a Grade 6 native English-speaking person.
Original: Axel Heiberg Island is an island in the Qikiqtaaluk Region , Nunavut , Canada . Located in the Arctic Ocean , it is the 31st largest island in the world and Canada 's seventh largest island .
Simplified: Axel Heiberg Island is the 31st biggest island in the world and Canada 's 7th biggest island .