Eisco

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US$40.01
Burner has a heavy casted base giving stability to the burner. Nickel plated brass burner tube with rotatable air regulator and cylindrical riffled connector mounted on casted base. Burner Tube 12.5mm , base dia 75mm overall height 120mm (4.72") For use with LPG/Butane.
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US$40.80
A small electromagnet mounted on a plastic case with 4mm safety connections. The voltage supplied through those connections power the electromagnet (maximum of 12V). Students can observe the change in strength of the electromagnet by changing the input voltage. Paper clips are ideal to use as weights to demonstraight this.
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US$40.89
Organic chemistry molecular model set for scientific study. Contains 114 plastic pieces representing 50 atoms and 64 links for hands-on learning. Links for constructing single, double, and triple bonds. Plastic four-compartment box for storage. Detailed instructions for ease of use.
Delivery within 2-3 weeks
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US$41.36
This complete apparatus has a 15cm adjustable scale. The adjustable scale helps to prevent parallax error. Scale is marked in millimeters and mounted on sturdy 30cm support rod and a wooden base. A hook supporting a coiled spring with a mass hanger and indicator is attached to rod. 
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US$44.54
The set consists of six 20mm cubes of the following metals: brass, lead, zinc, copper, aluminum, and iron. Perfect for investigating density.
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US$44.54
These high quality, affordable beakers are perfect for any science classroom or home lab.
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US$45.40
L-section launcher with holes for locating two 19 mm diameter steel balls which act as projectiles. Launcher is released by push button and projects one ball forward while allowing the other to fall freely. Demonstrate the effect of gravity on falling bodies. 2 metal spheres included.
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US$45.41
These high quality, affordable beakers are perfect for any science classroom or home lab.
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US$46.13
EISCO wave form helix is used to study wave behavior. The helix is a metal slinky spring that stretches for demonstrating wave forms, and can be used on stairs with a tall step height for further experimentation. The helix measures 20.0cm (H) when compressed, and has a wooden stand for display and storage.
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US$46.58
This set helps visualize the shapes of atomic and molecular orbitals. Contains enough individual parts to build 14 distinct models. 1s Unhybridized (1) 3d Unhybridized (5) 2s Unhybridized (1) 2s + 3 2 p orbitals Unhybridized (1) 2p Unhybridized (3) sp, sp2 sp3 Hybridized (3) Pink and purple coloured pear-shaped lobes represent the two wave phase (positive & negative) of the p and d atomic orbitals. White spheres represent the atomic nuclei. Each model comes with a transparent base for display.
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US$50.90
This lower cost alternative to the standard magnetic field chamber is great for the classroom. Performance with respect to the symmetry of fillings distribution is slightly decreased from the premium versions. (1) Magnetic field chamber, (1) Cylinderical bar magnet.
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US$50.90
Comprises two nickel plated forks A (440 Hz) mounted on individual boxes. One fork is provided with adjustable mass by means of which frequency may be shifted from the nominal 440 Hz .When both forks are sounded a clearly audible 'beat' is produced, its rate depending upon the difference in frequency between the forks.
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US$53.63
Comprising of a transparent plate having a matrix of small circular chambers, each chamber containing an iron rod and functioning independently with as a plotting compass. This plate is an excellent tool to view magnetic fields and due to its transparent nature is suitable for OHPs. Size is 250 x 250 mm.
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US$53.63
Rectangular sheet metal case and polythene insulated lid with finger flap to facilitate removal. Fitted with 4mm socket. Front glass window slides up to allow insertion of ionizing material in chamber.
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US$54.50
Metalware set for laboratory use. Contains base, rod, clamp, and retort ring for lab experiments. Stainless steel rod with powder-coated base for durability. Base measures 20.0 x 12.5cm (L x W), and rod measures 600.0mm (H). Suitable for high school or college students, or ages 14 to 21.
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