Description
running battery-free for repeatable classroom and stockroom use
Six replacement gold leaves cut to fit the standard gold-leaf electroscope
Two pith balls suspended on unspun silk from a brass pillar
Greatly magnified HIV virion model separates into two parts exposing the outer envelope and interior capsid with RNA
and raised molded graduations
Circular Perspex Block for Refraction Science at Home_Earth Science running battery-free for repeatable classroomRound perspex refraction block, the curved face geometry letting beams enter along any radius for clean Snell's law angle work in ray box and refraction setups.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
























