Challenge your class to solve a murder using a bloody stain left at the scene of the crime. Using simulated Neo/Blood, they'll identify whether or not the stain is actual blood. Then they'll solve the crime by performing ABO and Rh typing of both the stain as well as samples from the victim and several suspects. Students will learn about blood groups, blood typing and how blood stains can be used in solving crimes. Simulated Neo/Blood looks and behaves like real blood, giving you and your class quick, easy and completely safe results. This revolutionary substance realistically simulates agglutination. It even contains simulated, microscopic blood cells - of the same size and concentration as in actual human blood.
These polypropylene bottles are rigid, translucent and have excellent contact clarity. These bottles can be autoclaved filled as well when they are empty. The polypropylene cap has a built-in seal ring to make these bottles leak proof. Avaialble in 5 sizes.
| Size | Height | Neck Diameter ID/OD |
Pack Size |
| 60ml | 72mm | 17mm / 22mm | Pack of 12 |
| 125ml | 110mm | 16.5mm / 20mm | Pack of 12 |
| 250ml | 139mm | 20mm / 25mm | Pack of 12 |
| 500ml | 165mm | 20mm / 25mm | Pack of 12 |
| 1000ml | 222mm | 20mm / 25mm | Pack of 6 |
Natural resources are created by Earth's processes and used as a source of energy for all life on Earth. While some are created over the course of millions of years, others are continually generated each and every day. In Natural Resources, students will examine both renewable and nonrenewable resources, touching on their sources and many uses. Discover the best methods of conserving nonrenewable resources, including how they are recycled and cleaned. A fun, hands-on investigation illustrates how students can observe the many different kinds of particles that can be found in the air, while a geothermal plant provides the setting for a look at how people can turn volcanic heat into electricity. Part of the Earth Science in Action DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
The Navicade was introduced to the market in 2005 and has really taken off as a replacement for barrels. The narrow design and offset handle makes picking up and setting up extremely quick and easy.. Unique Handle Design. Slim Style - 49.25" H x 7.6" W. Weighs only 3 lbs. (without base). Molded-in holes for mounting light and ropes. Can be used to rope work area. Stackable for easy transportation or storage. Snug fitting bases will not be knocked over. Accepts up to four (4) bands of 4" reflective sheeting. Navicade is designed for easy placement and pick-up from a truck bed. Made of durable low-density polyethylene. Federal Highway Administration Approved. NCHRP 350 Compliant.
For demonstrating that white light is composed of the seven colors of the spectrum by rotating a disc. Comprising of a seven colored metal disc attached to a pulley mounted on a metal stand driven by belt with the help of a hand driven wheel.
For demonstrating that white light is composed of the seven colors of the spectrum by rotating a disc. Comprising of a seven colored metal disc attached to a pulley mounted on a metal stand driven by belt with the help of a hand driven wheel.
• 1” x 8“ (nominal) plastic boards in 3 lengths
• High density polyethylene material resists fading, chipping, and splintering
• Flat surface displays engineering grade sheeting
• Hollow core extruded design
• Internal walls provide lightweight strength and durability
• High density polyethylene material resists fading, chipping, or splintering
• Flat surface displays retroreflective sheeting
1” x 8“ x 4', 6' or 8' long plastic boards. High density polyethylene material resists fading, chipping, and splintering. Flat surface displays engineering grade sheeting. Hollow core extruded design. Internal walls provide lightweight strength and durability.
Dimensions: 0.75” W x 8" H
• All Plastic, Injection Molded A-Frame Leg
• Made of impact resistant polyethylene
• Accepts Plastic I-Beams, Type III Boards, and 1" x 8" Wood Boards
• Heavier leg requires less sand ballasting (Weighs 6 lbs.)
• Perfect for crowd control, road closures, and work zones
• Easy to set up, transport, and store. Use with one board or two
• Flashing light mounting receptacle on each leg
All Plastic, Injection Molded A-Frame Leg. Made of impact resistant polyethylene. Accepts 3 different types of boards: Plastic I-Beams, Type III Boards, and 1" x 8" Wood Boards. Heavier leg requires less sand ballasting (Weighs 6 lbs.). Perfect for crowd control, road closures, and work zones. Easy to set up, transport, and store. Use with one board or two. Flashing light mounting receptacle on each leg.
Explore the world of light, color and illusions, learn how light warms our world with this Optics Kit. Each kit comes with: 1 Activity book; 1 Double convex lens, 38mm diameter, glass; 1 Double concave lens, 38mm diameter, glass; 1 Plain lens, 38 mm diameter, glass; 1 Clear glass screen; 1 Mirror, glass; 1 Plastic screen (white); 4 Cellophane square (4 colors); 3 Lens/mirror supports; 1 Prism, equilateral, 25mm x 50mm, acrylic; 1 Beaker, graduated, plastic; 1 Flashlight( 2 batteries included); 1 Candle
Explore the world of light, color and illusions, learn how light warms our world with this Optics Kit. Each kit comes with: 1 Activity book; 1 Double convex lens, 38mm diameter, glass; 1 Double concave lens, 38mm diameter, glass; 1 Plain lens, 38 mm diameter, glass; 1 Clear glass screen; 1 Mirror, glass; 1 Plastic screen (white); 4 Cellophane square (4 colors); 3 Lens/mirror supports; 1 Prism, equilateral, 25mm x 50mm, acrylic; 1 Beaker, graduated, plastic; 1 Flashlight( 2 batteries included); 1 Candle
• 4" high with 4" square base
• Made with 100% PVC polyvinyl chloride (contains no phthalates)
• Conical and top of base is one continuous layer
• Brilliant color with UV inhibitors for resistance to fading
• Good visibility under all weather condition
• Wide body design ensures stability
• Able to return to their original shape after impact
• Will not mar floors.
• Available in 5 sizes
4" high with 4" square base
6" high with 6" square base
12" high with 8.25" square base
18" high with 10.75" square base
28" high with 14.5" square base
These cones are constructed of brilliant fluorescent orange vinyl. Non-porous, dirt-resistant surface can be easily cleaned. Will not mar floors. Virtually indestructible. Will collapse under pressure then spring back into shape. Easy stacking. Can be used for lane markers, crowd control, obstacle courses, boundary markers, marking danger areas, repair areas and driver training. Available in 6 Sizes.
The term "ore" is used in connection with a rock or mineral mass when it contains enough of an element or compound to make it economically feasible to mine. 15 specimens of the more important ores are included. Grades 6-12. Ages 11-18.
The term "ore" is used in connection with a rock or mineral mass when it contains enough of an element or compound to make it economically feasible to mine. 15 specimens of the more important ores are included. Grades 6-12. Ages 11-18.
The 15 fossil specimens in this collection illustrate the animal and plant evidence found in various strata. Representative fossils from this era are the oldest known, coming from the Cambrian through the Permian periods. Grades 7-12.
• Model comes mounted on a board and is enlarged 6,000 times
• Shows the major structures of a plant cell
• Great for demonstration and learning for the classroom
• Dimensions: 16.5" x 11.8" x 3" (42 x 30 x 8cm)
This model comes mounted on a board and is enlarged 6,000 times. This model shows the major structures of a plant cell, including the cell wall, nucleus, vacuole, Golgi apparatus, mitochondria, chloroplast, chromoplast, and the endoplasmic reticulum. Great for demonstration and learning for the classroom. Dimensions: 16.5" x 11.8" x 3" (42 x 30 x 8cm)
• Handy molded polypropylene pitcher
• Clear, autoclavable and has good chemical resistance
• Has a handle for easy and convenient lifting
• Feature raised graduations
• 500ml to 5000ml sizes
These handy molded polypropylene pitchers, are clear, autoclavable and have good chemical resistance. They have a handle for easy and convenient lifting. Feature raised graduations.
Maximum Use Temperature = 135°C
• Handy molded polypropylene pitcher
• Clear, autoclavable and has good chemical resistance
• Has a handle for easy and convenient lifting
• Feature raised graduations
• Set includes 1 ea. 500ml, 1000ml, 2000ml, 3000ml, 5000ml
These handy pitchers, molded in polypropylene, are clear, autoclavable and have good chemical resistance. All Sizes have handles for convenient lifting and feature raised graduations. Set includes 1 ea. 500ml, 1000ml, 2000ml, 3000ml, 5000ml.
Maximum Use Temperature = 135°C
• Clear molded polypropylene pitchers
• Autoclavable
• Good chemical resistance
• Handles for easy and convenient lifting
• Raised graduations
• Top Flange
• Diameter: 83mm,
• Height: 99mm,
• Graduated Interval: 10ml
• Pack of 12
| 250ml | 500ml | 1000ml | 2000ml | |
|
Top Flange Diameter: Height: Graduated Interval: Pack Quantity: |
83mm 99mm 10ml Pack of 12 |
97mm 126mm 10ml Pack of 12 |
114mm 170mm 10ml Pack of 6 |
150mm 212mm 20ml Pack of 6 |
These handy molded polypropylene pitchers, are clear, autoclavable and have good chemical resistance. They have a handle for easy and convenient lifting, and feature raised graduations. Available in 4 sizes.
Maximum Use Temperature = 135°C
An affordable assortment of some of the most commonly used plastic labware items. Kit consists of 20 items shipped in a plastic storage box including: 1 beaker (100 ml), 1 beaker (250 ml), 1 graduated cylinder (10 ml), 1 graduated cylinder (100 ml), 1 funnel (65 mm top diameter), 1 drop dispenser bottle, 4 reagent bottles, 1 wash bottle, 3 plastic test tubes, 6 pipettes.
Discover basic pneumatic/hydraulic principles using syringes, tubing, valves, and a variety of found materials. The Teacher's guide provides several design-and-make activities including a pump, car jack, extension grabbing arm, and dual hinged arm. All of the materials needed to build these models are provided, including corroplast, JAX clips, tuning, and syringes.
Includes 12 polypropylene samples. Determine the mass and volume of each sample. The slope of the straight line that results is the density of the material. The attractive wooden holder allows the teacher to see immediately when all of the specimens have been returned!
Includes 12 polypropylene samples. Determine the mass and volume of each sample. The slope of the straight line that results is the density of the material. The attractive wooden holder allows the teacher to see immediately when all of the specimens have been returned!
Test tubes are made of premium grade polystyrene, precision molded with glass like clarity. Sold in packs of 500.
Comprising a primary coil of insulated copper wire wound on a cylinder and fitted with terminals, together with a secondary coil of fine insulated copper wire wound on a cylinder into which the primary coil may be fitted. A soft iron core, for inserting in the primary coil, is included. To demonstrate the concept of induced current and with the soft iron core the electromagnetic effect can also be demonstrated.
Comprising a primary coil of insulated copper wire wound on a cylinder and fitted with terminals, together with a secondary coil of fine insulated copper wire wound on a cylinder into which the primary coil may be fitted. A soft iron core, for inserting in the primary coil, is included. To demonstrate the concept of induced current and with the soft iron core the electromagnetic effect can also be demonstrated.
These calculators can start with basic math operations and work their way up to more advanced concepts such as percents and square roots. This dual-powered, four-function calculator includes auto shut-off, 3-key memory and more. Measures 4 1/2" x 2 1/2" Grades Pre K +
Four-function, dual-powered calculator fits on the overhead to teach basic math operations, percents and square roots to an entire class. Includes auto shut-off, three-key memory and more. Measures 4 1/4" x 6 1/8" Grades PreK +
Prism Crown Glass refractive index 1.51. For Spectrometer (15864), and general refraction experiments. Equilateral 32 mm Sides.
Prism Crown Glass refractive index 1.51. For Spectrometer (15864), and general refraction experiments. Equilateral 32 mm Sides.
Lightweight solid polyester front with Ultra-Cool mesh shoulders and back. 4-point breakaway. 4-season adjustability allows for accurate sizing in any weather, even over bulky coats. Two 1" wide high performance reflective material with contrast. Brilliant Trim reflective edging improves low light visibility. Convenient left mic tab holder. Handy left chest badge holder & right chest name tag holder. Left chest pencil/pen pocket. Inside large lower patch pocket (when not in use, the vest folds into convenient storage pouch).
This Medium/X-Large size Security Public Safety Vest has a solid lime and black lightweight polyester front area with Ultra-Cool mesh shoulders and back. This is a high visibility safety vest with an enhanced 4-point breakaway design which offers fast removal and also acts as a safety feature by preventing snags on debris, heavy equipment or machinery. Convenient all-season adjustability provides a comfortable and proper fit all year. The split design with contrasting colors makes identification easy when working in crowded environments. Reflective edging by Brilliant Trim enhance low-light visibility. Features include: ANSI/ISEA 207 compliance, Double 1-inch Vizlite reflective silver stripes and lettering, microphone clip/tab holder on left chest to enhance communication, pencil and/or pen pocket on left chest, and one large inner left lower pocket. The pocket doubles as a unique storage pack for the vest when not being worn. This is the ideal high visibility safety vest for policemen and other police officials when working in dangerous low light areas.