This 12" x 18" sign is screened on both sides. Constructed of nylon reinforced vinyl over a wire frame. Great for indoor or outdoor use. Sign comes with cone attachment and a 28" high impact polyethylene cone. 12" x 18" Sign. High Visibility. Interchangeable. Screened on Both Sides. Includes 28" Cone & Attachment. Overall Height is 56".
This 12" x 18" sign is screened on both sides. Constructed of nylon reinforced vinyl over a wire frame. Great for indoor or outdoor use. Sign comes with cone attachment and a 28" high impact polyethylene cone. 12" x 18" Sign. High Visibility. Interchangeable. Screened on Both Sides. Includes 28" Cone & Attachment. Overall Height is 56".
This 12" x 18" sign is screened on both sides. Constructed of nylon reinforced vinyl over a wire frame. Great for indoor or outdoor use. Sign comes with cone attachment and a 28" high impact polyethylene cone. 12" x 18" Sign. High Visibility. Interchangeable. Screened on Both Sides. Includes 28" Cone & Attachment. Overall Height is 56".
This 12" x 18" sign is screened on both sides. Constructed of nylon reinforced vinyl over a wire frame. Great for indoor or outdoor use. Sign comes with cone attachment and a 28" high impact polyethylene cone. 12" x 18" Sign. High Visibility. Interchangeable. Screened on Both Sides. Includes 28" Cone & Attachment. Overall Height is 56".
This 12" x 18" sign is screened on both sides. Constructed of nylon reinforced vinyl over a wire frame. Great for indoor or outdoor use. Sign comes with cone attachment and a 28" high impact polyethylene cone. 12" x 18" Sign. High Visibility. Interchangeable. Screened on Both Sides. Includes 28" Cone & Attachment. Overall Height is 56".
This 12" x 18" sign is screened on both sides. Constructed of nylon reinforced vinyl over a wire frame. Great for indoor or outdoor use. Sign comes with cone attachment and a 28" high impact polyethylene cone. 12" x 18" Sign. High Visibility. Interchangeable. Screened on Both Sides. Includes 28" Cone & Attachment. Overall Height is 56".
This 12" x 18" sign is screened on both sides. Constructed of nylon reinforced vinyl over a wire frame. Great for indoor or outdoor use. Sign comes with cone attachment and a 28" high impact polyethylene cone. 12" x 18" Sign. High Visibility. Interchangeable. Screened on Both Sides. Includes 28" Cone & Attachment. Overall Height is 56".
This 12" x 18" sign is screened on both sides. Constructed of nylon reinforced vinyl over a wire frame. Great for indoor or outdoor use. Sign comes with cone attachment and a 28" high impact polyethylene cone. 12" x 18" Sign. High Visibility. Interchangeable. Screened on Both Sides. Includes 28" Cone & Attachment. Overall Height is 56".
This 12" x 18" sign is screened on both sides. Constructed of nylon reinforced vinyl over a wire frame. Great for indoor or outdoor use. Sign comes with cone attachment and a 28" high impact polyethylene cone. 12" x 18" Sign. High Visibility. Interchangeable. Screened on Both Sides. Includes 28" Cone & Attachment. Overall Height is 56".
Made of polypropylene and can hold 10 standard 1" x 3" microscope slides back to back. The interior is grooved in a way to hold the slides in an erect position. Jar features domed and shallow thread screw cap.
Copper Metal, reagent, granular - 500g
Used to simulate effect of earth's rotation on winds, ocean currents or unattached objects such as rockets. As sphere is launched across surface of base, when it is static, sphere traces a straight line. As turntable is put in motion, centrifugal force launches the sphere which, though traveling in a straight line, leaves a curved trace on rotating surface. Size of curve is in direct ratio to speed of rotation. Each kit includes one 14" diam. base (with outer retaining trough) mounted on a turntable, and featuring a reusable "magic slate" type erasable trace recording surface, removable launcher, 5/8" diameter steel spheres.
35" x 14" High quality N-series mesh. 3M Scotchlite reflective material high intensity tape. Has 3M reflective material high intensity trim. Adjustable front flaps and a full length hook and loop closure for a secure fit.
Limited Quantities Available
This kit is designed for high school students to learn the principles and applications of electromagnets. It includes two coils on plastic spools, a U shape iron core, a straight iron core, two magnetic compasses with stands, and a pair of wires. Students can build a bar-shaped and a U -shaped electromagnet which they power with a 6V battery (not included) or DC power supply (not included), to determine the magnitude and polarity of electromagnetic forces. An activity guide and a plastic storage case are included. Shipping weight: 7.3 Oz., dimensions: 4.5" x 4.5" x 1.5".
This scale offers a large faceplate for easy viewing. A versatile and inexpensive way to measure a variety of materials in classrooms and laboratories. Sturdy aluminum scales have giant numbers that will be visible from anywhere in the classroom. 8 1/2 inch diameter. 20N capacity, 0.5N readability
This scale offers a large faceplate for easy viewing. A versatile and inexpensive way to measure a variety of materials in classrooms and laboratories. Sturdy aluminum scales have giant numbers that will be visible from anywhere in the classroom. 8 1/2 inch diameter. 20N capacity, 0.5N readability
Set of 6. Aluminum, Brass, Copper, Steel, Lead, Zinc. With hooks. Diameter 25mm.
Set of 6. Aluminum, Brass, Copper, Steel, Lead, Zinc. With hooks. Diameter 25mm.
Set of 6. Aluminum, Brass, Copper, Steel, Lead, Zinc. With hooks. Diameter 25mm.
Set of 6. Aluminum, Brass, Copper, Steel, Lead, Zinc. With hooks. Diameter 25mm.
A great economical model to teach dental hygine and demonstrate the correct way to brush teeth and gums. Large lower and upper jaws, 6" wide on the back, 5" long. The two jaws are connected by bendable spring wires for easy demonstration. The model is 17" long, when it is completely laid flat. Included a 10" long tooth brush with nylon bristles.
A great economical model to teach dental hygine and demonstrate the correct way to brush teeth and gums. Large lower and upper jaws, 6" wide on the back, 5" long. The two jaws are connected by bendable spring wires for easy demonstration. The model is 17" long, when it is completely laid flat. Included a 10" long tooth brush with nylon bristles.
Watch how solids settle in layers at the bottom of a tank. Includes: Acrylics tank, slope, open tube, plastic drain tube and sprinkler head for plastic bottle. Dimensions: Tank - 11.8" x 2.8" x 5.9", Slope - 11.2" x 2.5" x 0.79", Open tube - 13" x 2.5" x 3.1", Plastic drain tube - 3.9"
• Dual Scale
• Hecto Pascal (hPa)
• Millimeter Mercury (mmHg)
• 4" Dial
• 5 YR Warranty
Dial Barometer for Classroom, Lab, Industrial Use. Large, clear dual-scale barometer in hPa (hecto Pascal) and mm (millimeter mercury) on a 4" dial which is easy to read from a distance. For classroom, lab, or industrial use. Accuracy of ±3 to 4 hPa. Wall mounts. Weight: 2.6 oz.
For classroom, lab, or industrial use. Large, clear 20-100% RH scale on 4" dial. Easily read from a distance. Uses a precise synthetic hair hygrometer with an accuracy of Ò5%. Plastic face meets food industry requirements. Inner dial shows temperature using a bimetal thermometer, with an accuracy of Ò2ßF. Wall mounts
For classroom, lab, or industrial use. Large, clear 20-100 percent RH scale on 4 inch dial. Easily read from a distance. Uses a precise synthetic hair hygrometer with an accuracy of ±5%. Plastic face meets food industry requirements. Inner dial shows temperature using a bimetal thermometer, with an accuracy of ±2 degrees F. Wall mounts
Cutting and pasting DNA fragments together are among the first techniques learned in the molecular biology lab, and are fundamental to all recombinant DNA work. In DNA Transformation, viewers will become familiar with sterile technique in the lab and learn about the basic tools used by molecular biologists. They will observe how genes are isolated by using gel electrophoresis. Students conduct an investigation in which they insert recombinant DNA into living bacteria, transforming them into organisms that glow in the dark! Part of the multivolume Science Lab Investigations! DVD Series. Includes a Teacher's Guide.
In Earthquakes, students discover how the underground movement of rocks, along with stresses on Earth's crust, produce surface-level tremors. Learn how scientists determine where the hypocenter and epicenter of a quake occur while exploring the destructive power of seismic waves. Investigate some of the most destructive earthquakes of the 20th century, and learn how seismologists predict where they will occur. A visit to the University of California at Berkeley showcases the use of a "shaker table" by engineers designing buildings, while a fun, hands-on investigation demonstrates how students can build a simple model of a seismograph and put it through a simulated earthquake. Part of the Earth Science in Action DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.