UserName
Use these replacement pens with Oakton™ Economy Hygrothermographs.
Sapphire substrates are pure compounds without pores
Manufactured by fusing naturally occurring crystalline silica
Brannan™ Thermometer Science Kit comes in a blue plastic case and includes a variety of instruments and a set of investigative science notes.
Comprehensive collection of 30 fossils.
Brannan™ Classroom Wall Thermometer Kit includes a large, colorful, plastic wall thermometer and chart for recording temperatures.
Single packed classroom wall thermometer kit with laminated chart. Complete with 3 point traceable calibration.