Economical stainless steel Vernier calipers with 125mm/5 inch capacity. Features inside and outside jaws, full length depth gauge, friction ruler and sliding lock for gauging. Graduated in millimeters and 1/16".

Includes a variety of tools, and objects for teaching basics of measurement. Kit is shipped in a reusable storage box. Kit includes Activity Guide with 15 activities.

Weights are made of brass, with nickel plated surfaces. All weights are carefully tested and calibrated. Analytical Weight Box contains a total of 9 weights from 1 to 100 grams, in polished wooden box, with fractional weights, rider and forceps.

This versatile spring scale can be used to measure forces using push or pull functions, or to weigh a suspended object from the large hook. Includes a zero adjustment screw and a metal suspension ring. Available in six color-coded sizes.

Good quality weight set contains 9 weights (1 each of 1g, 5g, 10g, 50g, and 100 g sizes, and 2 each 2 g and 20g sizes) plus a set of 1 to 500 mg fractional weights and a 5 mg rider and forceps, in a wooden storage box. Weights are made of polished stainless steel and each weight is inscribed with…

All plastic construction. Dual scale range is 6" or 150mm. Readability is 1/128" or 0.05mm.

Designed for beginners as well as experienced navigators, this sextant features an adjustable index mirror, index, and horizon shades. Durable brass construction, and features like more expensive models make this a great value Weighs only 0.75 lbs. An instruction sheet is included.

Use this simple apparatus to measure relative humidity. Includes two plastic-backed Celsius thermometers, one for dry bulb measurements and the other for wet bulb measurements. The thermometers mount on a wooden handle so they can be spun to obtain tem

This high quality set of 12 drilled balls is great for conducting all of your pendulum experiments.  Each set contains 2 each of brass, aluminum, steel, wood, cork, and copper balls. A 3mm hole is drilled through the center of each ball. Every set comes in a convenient plastic storage…

This clear plastic 12" ruler is scaled in 1/16" increments on one side and MM on the other.

Demonstrate Torricelli’s theorem to show the relationship between water pressure and depth. This clear acrylic cylinder, 19-5/16” high, includes three vertically aligned spouting nozzles positioned 4-3/4” apart. Each spouting nozzle also includes a stopper so pressure at each…

This micrometer is made of hardened steel for precision and durability. Its range is 0-25 MM and it has a precision rotary scale with a resolution of 0.01 MM, a ratchet thimble, and a locking lever. Instructions are included. Shipping weight: 9.5 Oz., dimensions: 6" x 4" x 1.5".

These weight sets include accurate, non-rolling hexagonal masses made of steel, and feature a durable black oxidized finish. Sets are supplied in sturdy cardboard boxes. Metric Weight Set includes two each of 5g, 10g, 20g, 50g, and 200g masses,

Balls sold individually and in a variety of sets. Choose from aluminum, brass, copper, cork, glass, lead, steel, wood, and zinc. Sizes include 19mm and 25mm. Pick from one of the following styles: drilled center hole, solid, and with hooks. Ball sets include: 42003-19: 19mm diameter with…

Mounted on a plastic base; comes with a ring for easy hanging. Overall diameter is 7.5". Shipping weight is 1.4 lbs.

Slotted weight set with hanger & case, brass. Includes 1x50g, 9x20g, 1x10g, 2x5g, hanger

These foam calorimeter cups have excellent insulating properties so you can investigate thermal energy with minimal loss to the environment. The lids have holes for inserting a thermometer or temperature probe. Outside Dimensions Height: 4.25” Diameter: 4” Inner container: Height: 4” Diameter 4”…

The clear plastic 6" / 15cm ruler is scaled in 1mm increments on one side.

For use with slotted weights. Available in aluminum or brass. Each weighs 50g. Stem length is 16 CM for aluminum hanger, 11.5 CM for brass hanger.

21st century New York Balance is ideal for demonstrating basic physics principles including levers and center of gravity. Set includes a demonstration balance support, three knife edge lever clamps, a half meter stick, one 50g hooked weight, and one 100g hooked weight. Includes activity guide.

Micrometers are a preferred tool for measurement of the outside thickness of items such as metals. This tool is useful for machinists and anyone needing precise measurements. It can be used to measure glass tubing or other outside diameters in a lab environment. It is a perfect teaching aid in…

Constructed of anodized aluminum, with steel hooks, this spring scale is extremely durable. Available in seven color-coded sizes.

A fine instrument for determining the radius of curvature of spherical surfaces such as mirrors and lenses. Its micrometer screw is graduated to measure displacement as small as 0.01mm. The instrument has two brass plates and three steel legs. A flat glass plate is provided for support while…

This measuring set contains four high quality instruments-a 0-25 x 0.01 MM micrometer caliper, a 90 degree knife edge square, a 150 x 0.05 MM vernier caliper, and a 150 MM steel ruler. All of these are housed in a sturdy plastic storage case.

Demonstrate how two identically sized cans absorb and radiate energy differently. One of the screw cap cans is smooth metal and the other is painted dull black. Water cools or heats at different rates because of the thermal radiation emitted by the two

These spring scales feature a clear plastic tube design, and are color-coded. A zero adjustment screw is provided at the top. Overall length approx.7".

The digital force meter is ideal for addition and resolution of forces, as well as for experiments involving action-reaction laws and other physical phenomena. With a wide range of 2, 5, 10 and 20 Newtons, it virtually replaces four types of spring balances, making it perfect for a variety of…

Introductory level metric micrometer graduated to read up to 25mm in 0.01mm division. Comes in a plastic storage case.

Featured displays of this electronic alarm stopwatch include time (hours-minutes-seconds, with 12 or 24 hour mode option), calendar, 24-hour stopwatch, alarm, hourly chime, 1/100 second chronograph, split time, and total time. It is lightweight, easy to operate, ad comes complete with battery and…

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…

These weights feature flat countersunk bottoms, with a double-ended hooked rod through the middle. They can be used on balance pans, as well as hooked in tandem for lever arm studies. Set of 9 weights consisting of 1 each 10g, 50g, 500g, 1000g, and 2 each 20g, 200gram weights. Weights are made of…

This precision measuring tool is made of hardened steel for precision and durability. It has a range of 150 MM and a large, easy-to-read dial with a resolution of 0.02 MM. A storage case and instructions are included. Shipping weight: 6.5 Oz. dimensions: 9" x 0.75" x 0.25".