Making Dew Kit, Classroom Pack, Includes: 15 metal cans, 15 metal backed thermometers and a Teacher's Guide for 15 pairs of students. This is to understand how dew and frost are formed and to understand the concepts of condensation, dew point, evaporation, humidity and sublimation
Tectonic Model set, Demonstrate plate, plate boundary interactions and the geometry and relative motions of faulting of geologic layers using 3-D manipulative models, Versatile kit contains a Fault Model Set of 5 manipulatives and a Tectonics Sand Layer Model