Spark timer is used for measuring velocity and acceleration of falling or moving objects. When the tape is pulled through the timer a spark is created which burns tiny dots in the tape at a precise and same interval. The faster the tape is pulled through the timer the larger the distance…

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…

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

Glass thermometer with red Toluene solution is mounted on a plastic backing card. Range is -40° to +50°C .

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.

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.

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.

Accurate, non-rolling hexagonal masses are made of steel, and feature a durable black oxidized finish. Available in both customary and metric sizes.

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

Durable, lightweight plastic instruments, designed for whiteboards/chalkboards. Triangles, protractor, and ruler are made of white polystyrene and feature handles for ease of use. Compass is made of clear acrylic, and accomodates most dry erase and magic markers. Triangle, 45 degree, 23" base, 16" sides.

Includes 1 each of 1, 5, 10, 50, 100, and 500 mg weights, and 2 each of 2, 20, and 200 mg weights. Rectangular plastic box with rider and forceps.

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.

Durable, liquid-filled clear magnetic compass is housed in a black plastic rotatable bezel. Graduated in 5° increments. Outer diameter of bezel is 45mm. Outer diameter of clear compass is 35mm. Includes a lanyard.

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.

Ammeters are used to measure the current flowing through a circuit. Current is measured in amperes, which is denoted by A on our meters. Our meters are accurate to +/- 2.5% and have banana jack style binding posts. This AC/DC ammeter can measure a range of 0A to 3A.

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…

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

Use this convenient set to perform various pulley demonstrations. The durable 20cm x 15cm base is fitted with a capstan and a 61cm tall aluminum support rod. Also includes a 20cm crossbar with clamp.  Includes activity guide. Contents Wooden base with capstan, hook and rod…

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…

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.

Includes a 50g aluminum hanger and 12 aluminum weights, 9 x 20g, 1 x 10g, and 2 x 5g.

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 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.

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

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".

GSC International N-00003 DC Voltmeter Digital with Connectors. Range 25 V 0.01V. The Digital DC Voltmeter is small, portable, and easy to use for any circuit. A 3 volt lithium battery is included. Two alligator clips are directly connected to the meter’s main body, allowing for…

Hardwood half meter stick for use with our Demonstration Balance Support or other laboratory measurement activities.

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".

Set of five zinc-plated hexagonal masses supplied in a sturdy cardboard box. Includes one each of 100g, 500g, and 1000g, and two each of 200g masses.

Individually calibrated weights made of high quality stainless steel. Both sets come with a sturdy plastic storage block. Set of 9 includes 1 each of 5g, 10g, 50g, 100g, and 500g, plus 2 each of 20g and 200g weights. Set of 10 includes all of the previously mentions, plus 1 each 1000g weight.

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

GSC International N-00002 DC Ammeter Digital with Connectors Range 3A,1mA. The 3A, 1mA Digital DC Ammeter with high accuracy is small and light enough to connect with any circuit. A 3 volt lithium battery is included. Two alligator clips are directly connected with the meter’s main body for…