This DC Motor Kit contains all the parts you need to build a DC Motor from scratch. Wind your own armature and field coil and build the commutator with two snap pieces. Includes detailed instructions manual. Excellent for classroom project.
This kit is designed to teach permanent and electromagnetic demonstrations. This model of both an AC and DC motor is easy to assemble and disassemble.
With the Alternating/Direct Current Generator you simply turn the handle and a current is produced that illuminates a lamp mounted on the generator base. Specially designed commutator switches between AC and DC current generation. Open construction allows visibility of all the parts. Magnet polarity marked "N" and "S" for easy reference. Can be removed and remounted with the opposite polarity. Binding posts allow external meters to be hooked up to generator.
Consists of a molded socket on a PVC cover, provided with binding posts for connection of two wire cords. Two electrodes are internally connected to the lamp circuit. The cover is designed to fit a clear glass tumbler.
This conisists of five 2" x 2" Acrylic Color Filters ideal for optical transmission, measurements, solar monitoring, attenuation of laser beams and demonstrating laser light's monochromatic character.
These porcelain Spot Plates for observing reactions with color changes are useful for micro chemistry applications.
These are blue solid rubber stoppers are made of excellent grade rubber and sold in one pound bags
The flame can easily be controlled higher or lower by rotating the ratcheted wick control wheel. The air cap is securely attached to the burner by a matching polished chain. Dimensions: 3.5" tall. 2.75" in diameter. 150ml capacity.
The Two Way Burner Stand is ideal for use with alcohol burners. The base is made from 3/16" stainless steel rod with a plated steel mesh top. Stand can be used in either high or low positions.
These Boston Round Flint Bottles with Dropper Assemblies are made of non-porous glass and autoclavable.
These Flint Reagent Bottles have a wide mouth and come with Ground Glass stopper.
The uncalibrated Specific Gravity Bottle, 25 ml, is made of borosilicate glass with ground stoppers for a precision fit.
These Dropper Bulbs can be used with pipettes and syringes.
These screw form Hoffman Clamp allows added control by a screw type adjustment which allows more or less air or liquid through.
With this distillation apparatus you can separate any mixture of two liquids by raising the temperature of the mixture to a point where one of the liquids will boil but the other remains liquid. Consists of: 300mm Leibig Condenser. Kjeldahl Ball 50mm in dia. 500ml Boiling Flask. Cast Iron Base with Support Rod. Clamp. Cast Iron Tripod. Wire Gauze. 500ml Erlenmeyer Flask.
Set contains twelve 3 1/2 X 4 1/2 polystyrene spot plates and each spot plate contains twelve 5.7mm depressions.
These Borosilicate Glass Cylinders come with removable stands for added stability and a bumper guard to prevent breaks.
This 36 piece Glassware Kit contains all the essential borosilicate laboratory glassware. Included are the following: Griffin beakers, one 50ml, two 250ml and one 600ml -- Erlenmeyer flasks; one 50ml, two 250ml and one 500ml --six medicine droppers -- six stir rods 6" -- one graduated cylinder 10ml -- one graduated cylinder 100ml -- one serological pipet -- twelve test tubes 16x150mm -- one short stem funnel 75mm x 75mm.
These glass petri dishes are used in laboratories for essential experiments in the field of growing and studying sciences.
100 strips per vial. This test paper indicates relative humidity: blue indicates low humidity: indicates high. For a fun reversal experiment, pink paper can be converted to blue by drying in an oven with low heat.
This is pH Test Paper Neutral Litmus, 100 strips per vial. Used to test for acid or alkili.
Each beaker has raised outer graduations for ease of reading. Tapered spout, chemical resistant, autoclavable, and molded from tough translucent polypropylene.
Long Stem Utility Funnels smooth walled and molded from chemical resistant polypropylene with a 60 degree cone angle and external ribs to prevent air lock.