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.
This Floating Magnet Set contains 6 brightly colored magnetic rings, and the plastic stand, in a cardboard storage box. We have designed a special stand to replace the pencil, for hands-free demonstration. Magnets are in plastic cases, to reduce breakage.
These Alnico U Shaped Magnets are painted red and supplied with a keeper.
These Hydrometers are used for determining the specific gravity of liquids.
Lenses are made from clear acrylic with one frosted plane surface.
These polypropylene Centrifuge Tubes feature a screw top with easy to read black graduations. These centrifuge tube are sterile. Centrifuge tube come with conical tip bottom or self standing type. All centrifuge tubes have black graduation markings and blue screw down cap.
Kit contains one each of following: test tube brush, spatula, crucible tongs, test tube clamp, lab scoop, forceps.
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.
This polypropylene, stable, non-corrosive, detachable stand can hold 28 pipettes with maximum diameter of 9/16". The heavy base measures 9" in diameter and a polypropylene coated square rod measuring 15" in length is screwed into the base.
The Cavity Slides are made of 3.2mm thick clear glass sheet.
These Microscope Slides Making Sets are a great biology resource! Prepare your own slide specimens with these microscope slide making kits. The reusable slides can be used time and time again, providing excellent value. Each kit includes 12 slides, 12 cover slips, and a storage box holding up to 25 slides.
The easy to use Hand Microtome lets you cut sections to 10 microns. Equipped with a clamping mechanism for securing various shapes and sizes of objects. Supplied in a wood storage box, with 2 glass overlays for the stage, and a tempered steel razor knife.
These nickel plated pins feature a "T" head which allows for a firm grip, making them easier to insert and extract. Approximate weight per package: 2 Oz. T Pin, 2", PK/100.
Our stethoscopes have adjustable, chrome plated binaurals, and PVC Y-tubing. Good quality, and economical.
This set is an easy yet effective way to teach how AC and DC electricity is produced. Banana plugs can be inserted into the different connectors to change from AC to DC electricity. The unit has a clear base for easy demonstration of connections. Includes an activity guide. Dimensions: 10"x7"x9". Shipping weight 2.5 lb. AC/DC Generator Set.
The WBC Series Bare Copper Wire is for general lab use and low voltage hook ups. Applications: As a fastener. For Electrodes. To connect circuits. As a source of cooper in electrochemistry experiments.
