• All-steel construction
• Used for laying single sided tape
• Holds 1" or 2" width
• Silver
This Tape Layer helps you create perfectly straight lines when laying vinyl hazard and colored tape on your floors. Featuring an all-steel construction, this tape layer works for 1” or 2” single sided tape.
This Economy Celestial Globe can be a low-cost alternative to our other Celestial Globes. It measures 8" in diameter and illustrates many of the same astronomical concepts as the larger versions. The Globe can be disassembled for easier storage. Constellations, right ascension and declination lines, and the ecliptic cover the Globe. A movable Earth and Sun complete the kit. A Teacher's Guide with assembly instructions and activities is included.
This Economy Celestial Globe can be a low-cost alternative to our other Celestial Globes. It measures 8" in diameter and illustrates many of the same astronomical concepts as the larger versions. The Globe can be disassembled for easier storage. Constellations, right ascension and declination lines, and the ecliptic cover the Globe. A movable Earth and Sun complete the kit. A Teacher's Guide with assembly instructions and activities is included.
• 400-800 Yard range
• Power from 4 to 8 watts
• Adjustable volume control
• Powerful siren
• Convenient wrist strap and compact handle for easy holding
• Takes six AA batteries (not included)
Get their attention while saving your voice with this 4 Watt Mini Megaphone. With a range of 400-800 yards, this megaphone comes with an adjustable volume control and powerful siren to communicate a variety of messages to different types of audiences. Equipped with a convenient wrist strap, this megaphone is easy to keep close at hand when you need it most.
Explore the wonders of magnets! Amaze yourself with the magic of magnetism when you power a light bulb and build your own motor! For young scientists ages 10+. Assembly normally requires adult participation. Contents: Neodymium & Ceramic Magnets, light emitting diode (LED), plastic plates and tubes, wire, compass, spring, nails, screws, nuts, and bolts, paper clips, sand paper, and activity guide.
Dowling Magnets Electromagnet science kit is ideal for ages 10 - 14 and is used to teach the kids about the magnetic effects. Kit is ideal to build a doorbell and a telegraph system.. - Helps in building a doorbell, telegraph system and even a catapult all using a true electromagnet. - Includes disc, latch and neodymium magnets, compass, straws, wires, sandpaper, switch plates, wood screws, nails, light bulbs, battery holders, iron filings, pre-drilled wood blocks, LED, instruction book. - Electromagnet science kit for grade 5th - 8th helps in building a doorbell, telegraph system and even a catapult all using a true electromagnet.
This introductory set contains the following: Amoeba, Paramecium, Hydra plain, Sponge spicules, Planaria, Tricinella in muscle, Earthworm cross section of anterior and posterior, Clam gill, Daphnia, Fruitfly, Housefly head, insect trachea.
This introductory set contains the following: Amoeba, Paramecium, Hydra plain, Sponge spicules, Planaria, Tricinella in muscle, Earthworm cross section of anterior and posterior, Clam gill, Daphnia, Fruitfly, Housefly head, insect trachea.
Introduce your students to the fundamentals of chemistry. Provide your class with a basic understanding of the primary concepts of chemistry as they investigate how matter is classified, identify the various types of mixtures, and compare the properties of solutions with the properties for mixtures. They'll also learn to identify elements and compounds and study how chemical symbols, formulas and equations are used to describe chemical reactions. Grades 7-10.
Wide-mouth, conical flask made of polypropylene. Comes with a screw cap, or can be used with a stopper. Chemical resistant, and autoclavable to 135º C. Graduated in easy to see green print. Sold in packs of 12.
Odd-shaped magnets make odd-shaped magnetic fields. This kit has seven very powerful neodymium rare earth magnets in seven unusual shapes. When placed near or on top of the included magnetic field viewer containing iron filings, the iron filings line up in amusing patterns. The 2.5" x 3.5" viewer is sealed so the filings won't spill or stick. Shapes included: bar, star, heart, disk, triangle, ball and ring. With 3/4" x 4" keeper and instructions.
7 inch to 11 inch double injected Fetal Pig specimen. Liquid colored latex is injected into the specimen's circulatory system for easy identification. The arterial system is injected with red latex and the venous system is injected with blue latex. After injection the latex hardens into a non-toxic form with a rubbery like consistency.
The fischertechnik LED Set is just the right solution for more light! The construction sets can now be upgraded even further with more luster and additional light effects. The LED set contains two Rainbow LEDs that flash in different colors and frequencies, together with two white LEDs and a battery holder.
Includes: 2x Rainbow LEDs, 2x white LEDs, battery holder for 9V block battery (battery not included)
Thanks to the compact measurements, this motor can be installed almost anyplace. In addition to the building blocks, gearbox parts and toothed gears, the set also contains a safety battery holder with integrated pole-reversing switch for 9V block (battery not included).
Performance data: Voltage 9V, max. output 1.0 W at 6000 RPM
• Amber bi-directional light
• Meets MUTCD and ITE specifications
• 3-way - flashing, steady burn, off
• Weather resistant circuit chip
• 7" Polycarbonate Lens - extremely durable. UV Stabilized
• Attach to all barricades, drums, panels, etc.
• yellow housing/base uses (2)6-volt batteries (not included)
Our light comes standard with all of the features that you would pay more for on competitive lights. Features such as a photocell which automatically turns the light off when the surrounding light conditions make the light ineffective... Sunny daylight hours are an excellent example of this. This feature greatly extends the life of the batteries as the light only operates when it can be seen. Increased battery life not only saves you money on batteries, but on the labor required to service the light as well. Another key feature is our 3-Way Switch. This switch allows a single light to serve two purposes. Each of our lights operates in either flashing or steady-burn modes. It only takes a simple turn of the switch to change the personality of our lights. Another cost- saving feature is that our light will accept batteries in any orientation as long as the springs are pointing up. There is no need to wonder if the battery is positioned properly, there will be no more batteries thrown out because it was thought that they were bad, when the real problem was the battery turned in the wrong direction. Compare our light to the competition and you will see that we out-shine them every time. Battery not included.
• Hand-held battery powered warning light wand.
• Essential equipment for crowd and traffic control.
• 120 flashes per minute.
• Can be seen up to 1/2 mile away.
• 300 hours of continuous flashing operation
• Easy grip ABS handle.
• Emits a bright red flash with 10 LED bulbs.
• Rugged polycarbonate refractor lens
• Weighs only one pound with batteries
• Length: 21-1/2" x 1-3/4" diameter.
• Wrist strap and clip for belt attachment.
The Baton is a hand-held, battery powered warning light wand. Designed as a durable, quality built, essential equipment for crowd and traffic control. The Baton quickly attracts attention and has found wide acceptance by police, emergency medical crews and fire departments. The Baton is so portable and light in weight that a child can handle it easily. It can be operated in the steady state or, with a flip of the switch, produce up to 120 flashes per minute. More than a foot of bright flashing light that can be seen up to 1/2 mile away. Provides a reliable minimum of 300 hours of continuous flashing operation (with new batteries). Powered by two (2) D-cell batteries (not included). Easy grip handle. Emits a bright red flash with 10 LED bulbs. Rugged polycarbonate refractor lens and ABS handle. Weighs only one pound with batteries. Over all length: 21-1/2" x 1-3/4" diameter. Handy long life wrist strap and convenient designed-in clip for belt attachment.
For thousands of years, humans dreamed of flying -- but it isn't as easy as birds make it look. Students will learn about lift, gravity, thrust and drag -- the forces that are used to get tons of steel off the ground and carry people thousands of miles before landing safely. They will also discover the role atoms and air pressure play in this amazing task as well as in other forms of flight. An interesting hands-on activity is included along with fun, real-life demonstrations to further illustrate these concepts. One of 16 volumes in the Physical Science in Action DVD Series in the Schlessinger Science Library. Part of the Schlessinger Science Library in Action Collection. This title correlates to the National Science Education Standards for Physical Science -- properties and changes in properties of matter, motions and forces and transfer of energy. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
• Injection molded traffic cones don’t stick together
• Patented interlocking design secures fluorescent portion of hazard cone to recycled black base
• Brilliant fluorescent lime cones with UV inhibitors to resist fading
• Superior flexibility in heat and cold
• Bounce back from an impact
• Recycled black base traffic cones look clean despite heavy use
• Available in 3 sizes
18" high with 11" square base
28" high with 14" square base
36" high with 14" square base
These Injection molded traffic cones won't stick together! Patented interlocking design secures fluorescent portion of hazard cone to recycled black base. Brilliant fluorescent lime cones with UV inhibitors to resist fading. Superior flexibility in heat and cold - PVC is better than rubber traffic cones and pylons, since it can instantly bounce back from an impact. The recycled black base keeps your cone looking clean despite heavy use, being run over, and tar stains!
Digestive System Connective Tissue Human Blood (sm) Nerve Tissue Hemopoetic System Vascular System Human Cheek Cells Epithelial Tissue Muscle Tissue Endocrine System Respiratory System Excretory System Human Hair Fingerprints Human Skin Blood Smear or Blood Stain Textile Fibers
Digestive System Connective Tissue Human Blood (sm) Nerve Tissue Hemopoetic System Vascular System Human Cheek Cells Epithelial Tissue Muscle Tissue Endocrine System Respiratory System Excretory System Human Hair Fingerprints Human Skin Blood Smear or Blood Stain Textile Fibers
Fossil fuels were formed millions of years ago as part of a natural process in which the remains of dead plants and animals were buried and placed under extreme pressure and heat. Coal, oil and natural gas are the most important fossil fuels. But what are they used for, how do we find them and what can we do to preserve our limited supplies? Students will find the answers to these questions and more in Fossil Fuels as they explore these nonrenewable resources of Earth. A fun, hands-on investigation demonstrates a creative alternative to using fossil fuels in the creation of plastic and a visit to an oil platform showcases how this valuable fossil fuel is pumped up from the bottom of the ocean. Part of the Earth Science in Action DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
Students learn to identify different fossils after digging them out of a gravel mixture. Kit contains 1 lb. bag of gravel mixture with 12 real fossils (2 each of 6 different) and corresponding large identified specimens, magnifier, forceps, and Teachers Guide in storage box. Grades 6-12. Ages 11-18.
Fossils are historic blueprints -- remnants of plant and animal life that preceded us. In Fossils, students will examine molds, casts and imprints of various living things, and discover how scientists place the age of these ancient remains and the methods they use to preserve them for future generations. Find out how paleontologists discover fossils and what these discoveries tell us about the past. Take a trip to the Petrified Forest, and examine tree trunks that were turned to stone millions of years ago. A fun, hands-on investigation demonstrates for students how they can create four different simulated environments in order to test each for its ability to preserve remains. Part of the Earth Science in Action DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
A very ecconomical apparatus to demonstrate that light and heavy objects fall at the same rate / accelaration in a vacuum. Apparatus consists of a 36" (910mm) long x 2.25" (55mm) diameter, transparent tube with a stopcock mounted in a rubber stopper on one end, and a solid rubber stopper on the other end. Supplied complete with a 13" long vinyl tubing for connection to a vacuum pump (not supplied), a metal disc and a feather.
A very ecconomical apparatus to demonstrate that light and heavy objects fall at the same rate / accelaration in a vacuum. Apparatus consists of a 36" (910mm) long x 2.25" (55mm) diameter, transparent tube with a stopcock mounted in a rubber stopper on one end, and a solid rubber stopper on the other end. Supplied complete with a 13" long vinyl tubing for connection to a vacuum pump (not supplied), a metal disc and a feather.
Vertebrate skeletal system (amphibian). Learn about the backbone and body structure of amphibians. Sealed in resin, making it easy to observe, handle, and store. 5.3" x 3.5" x 1.4". Weight: 500g.
• 100% polyester 150D oxford with PU coating
• Zipper and snap front closure
• Length for sizes from 50" to 53" in .05" increments
• Mesh lining
• Detachable and stowable hood
• Two exterior slash pockets with rain guard
• Vent holes under each arm
• Available in 2 colors and 7 Colors
100% polyester 150D oxford with PU coating. Zipper & snap front closure. 50" length. Mesh lining. Waterproof with sealed seams. Detachable hood w/hood storage in collar. 2 exterior slash pocket with rain guard. Vent holes in under arms. AWARELite reflective trim.
| Size | Length | Chest |
| Medium | 50" | 40"-42" |
| Large | 50.5" | 44"-26" |
| X-Large | 51" | 48"-50" |
| 2X-Large | 51.5" | 52"-54" |
| 3X-Large | 52" | 56"-58" |
| 4X-Large | 52.5" | 60"-62" |
| 5X-Large | 53" | 64"-66" |