Dropping Funnel, 1000mL - Squibb - With 29/32 Plastic Stopper & PTFE Key Stopcock - Borosilicate Glass Subject_Botany 5 by 4-inch ventilation apparatus

5 by 4-inch ventilation apparatus modeling historic mine-gallery airflow and domestic chimney convection through a candle-driven hot-air-rise demonstration

this thermistor mounts on a transparent base with 4mm color-coded sockets and a printed circuit diagram for sensor-circuit student work

adjustable from 0 to 45 degrees with an alignable pulley and included pan and roller

Hand-painted river-development model tracking how a watercourse shapes terrain from headwaters through meanders to delta

Dropping Funnel, 1000mL - Squibb - With 29/32 Plastic Stopper & PTFE Key Stopcock - Borosilicate Glass Subject_Botany 5 by 4-inch ventilation apparatusSQUIBB Squibb style dropping separatory funnel with 1000ml capacity TRANSPARENT & DURABLE Made of high quality Borosilicate 3. 3 glass Transparency allows for high visibility FOR SEPARATION Used to transfer liquids Using the stopcock allows fluids, including reagents, to dispense slowly (drop wise) STOPPER & STOPCOCK Fitted with an interchangeable 29 32 plastic stopper and PTFE key stopcock GREAT FOR PROFESSIONAL LABORATORIES, CLASSROOMS & HOUSEHOLD