Why is the Earth Still Hot Inside? part of Earth and Space Science:Summer 2010:Activities
Inquiry lab in which students study the rate of heat transfer as a function of size. Larger objects lose heat more slowly than smaller objects because their surface area relative to their volume is smaller. Relevant to the study of planetary formation, comparative planetology, basic thermodynamics, scientific inquiry, error checking, and the consequences of scaling.

Heat on the Move part of Earth and Space Science:Summer 2010:Activities
To introduce students to the concept that heat transfer via convection is more efficient then heat transfer via conduction.