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.
The SSR Series Stainless Steel Crucibles have a unibody construction with one piece of stainless steel. Lids sold separately.
These Tuning Forks are made of aluminum with the frequency and scale letter stamped on each fork.
The PCH Series High Form Porcelain Crucibles are very good quality porcelain crucibles, made to withstand temperatures up to 1150`C. Lids included.
Our coats feature one upper left breast pocket, two roomy lower pockets; side slit openings, and an adjustable belt. Knee-length lab coats made of easy care white cotton blend fabric (65% polyester, 35% cotton). A good value with comfort and style.
The NCR Series Nickel Crucibles have a unibody construction with one piece of sheet nickel, polished inside and out.
These plates are made of clear glass, 2mm thick, with fine polished edges.
These Utility Funnels have eight internal ribs to facilitate filtration and are made of polypropylene. Features a 30mm long stem.
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.
The polypropylene bottles are rigid, translucent and have excellent contact clarity. These bottles can be autoclaved when filled, as well when they are empty. The polypropylene cap has a built in seal ring to make these bottles leakproof.
These beakers are made from Type I low-expansion borosilicate glass. Beakers feature heavy and uniform wall thickness; spouts designed for easy pouring, and beaded tops.
These are Pipettors device that provide for easy and precise pipetting. Pumps feature a lever for quick release, and forward or backward wheel movement. The soft elastic chuck has a threaded collar to tightly grip glass or plastic pipettes. Easy to clean.
These Plane Spherical Mirrors are made of optically true glass with scratch resistant copper back silvering.
These are rectangular blocks that are ideal for refraction and internal reflection studies as well as index of refraction measurements.
These Slide Storage Boxes are sturdy two-piece molded plastic boxes. The bottom section has slide numbers engraved for easy reference, and the inside of the lid carries a numbered slide index.