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Use the Happy and Sad Balls to explore polymer chemistry. One ball will bounce very high; the other ball will not bounce. A classic demonstration.
Designed to fit onto the top of our star and round base cryogenic vial closures. Provide quick visual indentification of specific vials for ease in organizing inventory. Compatible with all of our cryo vials except P60102 and P60103 skirted base cryo vials.
The United hand held generator offers features and quality similar to much more expensive brands currently offered in the science education market. This 6V DC Generator can deliver up to 400mA current. The generator comes equipped with a polarity coded plug in lead with alligator clips. The clear...
These drilled balls are excellent for use as pendulum bobs or in impact and collision experiments. All drilled balls feature 3mm countersunk holes so pendulum cord knots can be recessed.
This air track is constructed of high quality aluminum alloy and has the advantages of being both lightweight and highly durable. Precision machining provides a smooth surface and high linearity. It comes with a comprehensive accessory package for experiments in linear motion. The track length is...
The 1660-point solderless breadboard is built with high-quality construction that can withstand repeated use. It includes color coordinates that are screen-printed for easy reference. This breadboard is perfect for investigating circuit designs and prototyping. It accepts most electronic components...
Polypropylene cross-shaped connectors with serrated ends are ideal for leak-proof tubing connections. Autoclavable.
Each specimen in this set of five diverse materials cylinders has identical mass and radius. Materials included are aluminum, zinc, tin, steel and copper. Includes a storage box and activity guide.
The liquid convection apparatus is made from Borosilicate Glass and is bent into a rectangle with a filling funnel. To show the convection of heat in a liquid, simply fill it with a colored liquid and place a heat source at one of the bottom corners. Glass tube is 20 mm outer diameter bent into...
Our meters are mounted in black plastic cases. Meters have a scale length of 75mm, offer +/- 2.5% accuracy and come with 5-way binding posts and an external zero-setting screw. Meters are not protected against prolonged or significant overload. Stackable for storage.
With lip and flat porcelain handle. Glazed on inner and outer surfaces except for rim and top of handle. Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56 x 10-5, gradually increasing to 4.69 x 10-5 at 1050°C. Every batch of porcelain is heat tested...
Our Multichannel Micropipettes are recommended for a wide variety of applications such as ELISA, molecular screening, kinetic studies, and DNA Amplifications. Our Variable Volume Micropipettes feature built-in tip ejectors and autoclavable tip cones. They work on a click stop digital system, are...
Clear plastic magnifier is 90 mm (3.5") in length and features a lens of 3x magnification. The lens is 35mm in diameter.
The United Scientific™; Eco-Mix Vortex Mixer has a simple touch-and-go function that makes it easy to use. The compact design saves bench space, yet the mixer is powerful enough to deliver robust vortex mixing at 3000 rpm. Compatible with centrifuge tubes up to 50mL capacity, and can also be...
Durable, machine-blown body. Heavy beaded tubing neck. Flasks feature a sharp graduation line and large white block letters. A plastic snap cap is included. Meets Class A specifications per ASTM E-288. Batch certified.
Lab Supplies Weighing Boats United Scientific. Ideal for weighing, evaporating, dispensing, and storing samples.
Square shaped clear flint glass bottles with glass pipet and rubber bulb stopper. Capacity 30ml. Replacement pipets are also available.
Glass thermometer mounted on aluminum back. Thermometers are filled with approximately 3 grams of Toluene mixed with red color.
This handheld device provides a qualitative visual indicator of the conductivity of different solutions, acids or salts. Two brass probes can be touched to a solid substance, or immersed in a liquid, to show conductivity on green LEDs that range from 1 to 10. Each probe is 53mm long with a diameter...
All the wide mouth jars are made from soda lime glass and have a PP cap with a PE liner. Since the opening is so large, it is easy to insert and remove materials. Autoclavable Size (oz) Diameter (mm) Height (mm) Mouth Diameter (mm) 2 6 48.5 51.5 4 57 76 50 8 80 87 72 16 80 160 72 32 100 140 89...
This Boyle’s law apparatus allows you to investigate the relationship between Pressure, Volume and Temperature. The cylinder has mL markings, and the screw mechanism allows you to adjust the volume and keep it at a specific position. In the bottom of the cylinder is a thermocouple to read the...
The MAKERSPACER DIY Line uses advanced mathematical design with simple to use laser cut wooden parts to create a fun and easy to use design experience. Accompanying the series is a detailed theory book. This resource extends beyond simple assembly instructions to offer a deep dive into the...
Convenient assortment of seven commonly used laboratory tools. Contains one each of the following items: 6-hole test tube rack, test tube brush, test tube clamp, spatula, crucible tongs, lab scoop, and forceps.
This standard size (8" x 2.75") water bath is ideal for heating flasks, bottles, tubes, etc. Features seven concentric rings, flat bottom, and a steam escape outlet. Stainless steel construction.