These Utility Funnels have eight internal ribs to facilitate filtration and are made of polypropylene. Features a 30mm long stem.
This molded rubber filter disc is designed to support and seal in place a filter crucible or a funnel in the neck of a filter flask. Inside diameter of the socket at top is 32mm, and outside diameter of the disc is 76mm. The bottom of disc is flat so that it seals tightly against lib of the flask.
These flat bottom boiling flasks are made of borosilicate glass and are designed to give the best combination of thermal shock resistance, physical strength and resistance to chemical attack.
This is a pre-assembled DC Motor designed for students to learn about electromagnetic forces. The open structure resembles the diagram found in many textbooks. The polarity of the magnets can be reversed to change the direction of the rotation. The motor can also be used with a rheostat to observe the change of speed with the change of current.
