This article provides an overview of icebergs' formation and characteristics and the hazards associated with icebergs.

Why does an egg float in salt water? Learn about density and buoyancy in this video segment adapted from ZOOM.

This expository article, written for students in grades 4-5, explains why ice floats and how this is essential to life on earth. Modified versions are available for younger students.

This is a science lesson that helps students make predictions, complete expirements, and analyze data on what makes an object sink or float when placed in water. 

This article highlights activities for elementary students that model icebergs and develop an informal understanding of the concepts of buoyancy and density. Suggestions for inquiry-based activities are included.