Sloping Pear-Shape Splash Head, 24/29 Flask and 19/26 Condenser Cones, Borosilicate Glass Glass Bottles_BOD Bottles Determines gravitational acceleration g by

Determines gravitational acceleration g by timing free-fall of a steel sphere released from an electromagnet

Nine-model set traces embryonic and fetal development across the full gestational period

Multiple-connection receiver adapter in borosilicate glass features 19/26 socket for connecting multiple apparatus components in chemistry setups

each bulb filled through a top funnel for direct comparison

and amphibian skeletal structure for comparative vertebrate teaching

Sloping Pear-Shape Splash Head, 24/29 Flask and 19/26 Condenser Cones, Borosilicate Glass Glass Bottles_BOD Bottles Determines gravitational acceleration g bySloping pear shape splash head in heavy duty borosilicate glass fits 24 29 flask for vacuum distillation with splash prevention.