All Products
Discover Freefall System
Discover Freefall SystemWith a magnetic release and a Time of Flight pad this system minimizes human error and allows detailed investigation of air resistance and gravity.
Discover Friction Accessory
Discover Friction AccessoryFour plastic trays with unique surfaces (cork, felt, and 2 plastic) to use with dynamics carts and sensors.
Discover Pi Set
Discover Pi SetThis set allows students to derive the meaning of pi directly from their measurements. Includes four plastic disks with varying diameter in each set.
Discover Pi Set (10 pack)
Discover Pi Set (10 pack)This 10-pack of disc sets allows students to derive the meaning of pi directly from their measurements. Four plastic disks with varying diameter in each set.
Discover the Bell, Buzzer, and Switch Kit
Discover the Bell, Buzzer, and Switch KitStudents use these totally self-contained kits to assemble an electromagnet, sounder, buzzer, and a bell.
Disk (10pcs set)
Disk (10pcs set)
Dissectible Leyden Jar
Dissectible Leyden JarThis Leyden Jar is designed for classroom demonstrations and comes with a durable inner and outer plate, a plastic dielectric, and instructions.
Dissolved CO₂ Waterproof Sleeve
Dissolved CO₂ Waterproof SleeveThe Wireless CO₂ Sensor can be equipped for aqueous measurements using this semipermeable sleeve.
Includes; 5 x sleeves & 5 x O-rings
Distillation set, large
Distillation set, largeGlass construction kit for organic chemistry. The individual parts are with NS 19/26 and NS 24/29 grinding.
Distillation set, semi-micro
Distillation set, semi-microConstruction kit in glass for the construction of apparatus for distillation on a semi-micro scale. The individual parts are with normal grinding NS 14/23.
Distillation set, small
Distillation set, smallGlass construction kit for organic chemistry. The individual parts are with NS 14/23 grind.
DNA Model 50cm
DNA Model 50cmAssembled
As FR-527565, but with 12 base pairs:thymine (t), 6 adenine (A), 6 guanine (G) & 6 cytosine (C).
The side chains consist of dextroribose (red) and phosphate (purple), which can also be separated.
DNA model, 12 layers
DNA model, 12 layersThe model has 12 base pairs: 6 thymine (t), 6 adenine (A), 6 guanine (G) and 6 cytosine (C).
The side chains consist of dextroribose (red) and phosphate (purple), which can also be separated.
DNA model, 22 layers
DNA model, 22 layersThis DNA model makes it easier to study the double helix structure.
The model contains 22 base pairs consisting of:
12 thymine (T) (orange), 11 adenine (A) (blue), 11 guanine (G) (green),11 cytosine (C) (yellow).
DNA model, large, for hanging
DNA model, large, for hangingLarge, attractive DNA model, which can be mounted on a tripod pole or hung from the ceiling.
Shows DNA in double helix with 12 base pairs with correct bond angles
Document Analysis Lab Activity
Document Analysis Lab ActivityDetermine a document’s authenticity.
Doppler Ball
Doppler BallA 100 mm plastic ball with a coin cell battery powered buzzer inside for demonstrations of the Doppler Effect.
Doppler Rocket
Doppler RocketEffectively teaches students the frequency shift concept and its rugged design allows for years of classroom use.
