The following are intended to be suggestions. The intent is that you pick a topic in thermal physics and explore it in detail.

1. Thermometry
2. Superfluids
3. The Bose Einstein condensate
4. Black Hole Thermodynamics
5. Radiative transfer in stellar atmospheres
6. The Einstein solid
7. The Debye solid
8. High temperature thermodynamics
9. Legendre transformations
10. Jacobians in thermodynamics
11. How to use a thermometer as a barometer
12. Heat engines
13. The van der Waals gas
14. Atmospheric thermodynamics
15. The derivation of thermodynamic results using information theory (Maxent)
16. Experiments to numerous to mention