6-Metal Equal Mass Cylinders Set (Copper, Lead, Brass, Zinc, Iron, Aluminum) Human Anatomy_Human Anatomy Charts & Models this 2-pack of 20oz Griffin-shape

this 2-pack of 20oz Griffin-shape borosilicate beakers adds a pouring spout for everyday home use

Bulk 144-pack of pre-cleaned 75 x 25mm glass microscope slides features frosted labeling ends and ground polished edges for high-volume teaching labs

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

and vascular cylinder for plant anatomy and absorption teaching

and a 1-degree protractor

6-Metal Equal Mass Cylinders Set (Copper, Lead, Brass, Zinc, Iron, Aluminum) Human Anatomy_Human Anatomy Charts & Models this 2-pack of 20oz Griffin-shapeSix equal mass 100g cylinders in copper, lead, brass, zinc, iron, and aluminum at a shared 0. 6 inch diameter, varying length isolating density as the single variable across materials.