"agarose powder"

Sturdy brass construction for supporting a variety of magnets and friction rods.

Students understand atomic line spectra in a whole new light.

Ground-breaking increases in speed and performance compared to the Raspberry Pi 3 Model B+.

Low Cost Meets Quality.

Universally applicable, floating, high-voltage power supply with built-in, high voltage resistant transformer to supply the heater voltage for electron tubes. Continuously adjustable high voltage, safe to touch, with passive current limitation and analog voltage display. Unit poles can be connected to protected earth, but it is not center tapped.

This safe spectrum power supply features encased spectrum tubes.

Everything needed to explore the relationship between pressure and volume of gas at constant temperatures.

9 V batteries can be used in electrical circuits when mounted in these holders.

Piezo popper kit.

Durable plastic cell holder.