To verify Ohm's Law. The apparatus consists of one wire wound rheostat, one moving coil voltmeter and one moving coil ammeter, mounted on a bakelite plate in a wooden case. With four terminals, two for battery connection and two for resistance coil. Supplied with one resistance coil, without battery.
To verify Ohm's Law. The apparatus consists of one wire wound rheostat, one moving coil voltmeter and one moving coil ammeter, mounted on a bakelite plate in a wooden case. With four terminals, two for battery connection and two for resistance coil. Supplied with one resistance coil, without battery.
• 800 Yard range
• Power from 8 to 12 watts
• Adjustable volume control
• Powerful siren
• Ergonomic handle
• Convenient carry wrist strap
• Takes six AA batteries (not included)
• Yellow
Large groups and teams on wide open fields will benefit from this 8 Watt Megaphone. Able to be heard up to 800 yards away, this megaphone also comes with a built-in siren when you need to get their attention. The adjustable volume control allows you to adapt to different crowds and instances, while the convenient wrist strap and ergonomic handle makes it easy to hold and transport this megaphone.
An introduction to the relationship between solute and solvent which is vital to life for both animal, plant... this kit illustrates how cellular absorption occurs in animal tissue. Kit contains: strips visking membrane, glucose, iodine solution, starch, benedicts A, benedicts B, instructions and background material. Sufficient materials for 16 pairs of students. Grades 9-12.
1000' in 100' lengths. Plastic pennants are 18" long in a variety of colors: Blue, Yellow, Red, Green & White. Dress up your field, control crowds, etc.
Made for work, but works for play. A revolutionary 3 layer material that keeps you warm and dry, yet cool and comfortable for 3-season protection. Offers amazing warmth-to-weight ratio in a breathable, wind and water resistant system. Ideal Applications: For use in environments where high visibility and breathability are desired for wearer safety and comfort.
A revolutionary 3 layer material that keeps you warm and dry, yet cool and comfortable for 3-season protection. Offers amazing warmth-to-weight ratio in a breathable, wind and water resistant system.
Ideal Applications: For use in environments where high visibility and breathability are desired for wearer safety and comfort.
• ANSI/ISEA 107 Type R Class 3 compliant jacket for high visibility and breathability.
• Breathable to ASTM E96.
• Athletic apparel design and performance adapted for work environments.
• Inner fleece layer provides warmth and comfort.
• Fluorescent yellow-green background material for excellent daytime visibility.
• 2” silver reflective tape reflects light for 360° nighttime conspicuity.
• Overhead shoulder design for complete freedom of movement.
• Stretch fabric with inner fleece layer for maximum comfort.
• Storm fly front and zipper front closure seal out wind and rain.
• Front hand warmer pockets with zipper closure.
• Right breast security pocket with zipper closure.
• Hook & loop take-up straps on sleeve cuffs for easy adjustment.
• Longer cut back with adjustable elastic drawcord for extra coverage.
• Dark colored front helps conceal dirt.
• Can be zipped into the Icon™ (SS034D) outer shell for insulation.
• Small and Medium sizes have all yellow-green sleeves to meet ANSI 107 requirements.
Observe the color and state of matter for 14 different substances. Test liquids for the presence of odor and observe the texture of solids. Test the acidity or alkalinity of liquids. Test the solubility of solids in alcohol and water. All materials included except: water, stirring rod, graduated cylinder, balance, hand lens (optional), safety glasses, test tubes or depression plate for solubility test. Designed for 24 students in groups of 4. Grades 8-11.
Outside Diameter: 19mm, Height: 170mm, Graduated Interval: 0.5ml Our Measuring Cylinders are molded as one-piece in polypropylene. These autoclavable cylinders have raised prominent graduations for easy reading and have excellent contact clarity. The broad round base provides good stability.
Outside Diameter: 19mm, Height: 170mm, Graduated Interval: 0.5ml Our Measuring Cylinders are molded as one-piece in polypropylene. These autoclavable cylinders have raised prominent graduations for easy reading and have excellent contact clarity. The broad round base provides good stability.
The Edinburgh II 16" Blue Ocean Raised Relief Floor Standing World Globe sports clean, sophisticated lines, a gyro-matic full swing meridian which allows you to fully view the soft blue oceans and brightly colored landmasses. Comes with additional hardware that will allow you to change it from a floor standing globe, to a desktop globe! Standing a total of 38" tall, this beautiful world globe boasts a rich walnut finished pedestal and matching base. The sphere features both political boundaries and raised relief, providing the mapping details you have been looking for in a world globe at the price you want.
Constructed with lightweight (7 lbs) but stable 14" diameter flat top safety base, 12 gauge steel with rounded edges. Upright is 36" high x 1" diameter, made of 16 gauge galvanized steel tube with permanently attached 3/16" steel ring. Unit suitable for pennant streamers, plastic chain or rope.
Due to high demand, this item can take 2 to 4 weeks for delivery.
Constructed with lightweight (7 lbs) but stable 14" diameter flat top safety base, 12 gauge steel with rounded edges. Upright is 36" high x 1" diameter, made of 16 gauge galvanized steel tube with permanently attached 3/16" steel ring. Unit suitable for pennant streamers, plastic chain or rope.
Due to high demand, this item can take 2 to 4 weeks for delivery.
parkin• 2" high x 10" wide x 6 feet long
• A smart safe investment for your property
• Helps keep speed levels down, reducing costly accidents
• Molded-in color, eliminating costly painting fees
• Easily cleaned to maintain color for increased visibility
• Weighing only 33 lbs., allowing for one person installation
• The 3-bolt anchoring system facilitates relocation
• Made with 100% recycled plastic
• Impervious to road chemicals and corrosion
• Ships UPS or FedEx Ground
These lightweight speed bumps are a smart safe investment for your property. The durable design helps keep speed levels down, reducing costly accidents associated with high speed in your parking facility. Speed bumps have a molded-in color, eliminating costly painting fees. Traffic marks and dirt can be removed with either soap and water or a commercial solvent, helping maintain the bright yellow color for increased visibility. Weighing only 33 lbs., their light weight design allows for one person installation. The 3-bolt anchoring system facilitates relocation when making changes in paving, snow removal and sealcoating. Made with 100% recycled plastic, speed bumps are impervious to road chemicals and corrosion and cost hundreds less than competing alternatives. 2" high x 10" wide x 6 feet long. Ships UPS or FedEx Ground.
Students will learn important fossil concepts while investigating large specimens carefully selected to illustrate ideas about their formation. The Fossil Collection comes in a sturdy storage box that contains twelve large (2" x 3") specimens nestled in an attractive and durable display tray. The Teacher's Guide, reproducible student activity "field notebook", and reference cards for each specimen will ensure the successful use of these products. Also included are four quality hand lenses and a color identification chart designed to provide clues and answers for the student user. Grades 6-12. Ages 11-18.
An easy way to observe and study a large frog without dissection. The Pro-Sect system displays partially dissected, 4"-5" bullfrogs. The bullfrogs are displayed in a transparent, safe-to-handle, liquid-filled, plastic tray that is moldered and sealed. Some of the internal organs such as the liver, heart, and veins and arteries have been injected with colored latex to identify their circulatory function. A comprehensive study guide provides information to assist the teacher and students. Individual internal organs are identified on a transparent overlay for study or testing purposes.
The Project Planetarium is ideal for individual study projects. Causes of 2 day and night, seasonal changes, phases of the moon, and planet locations are easily understood. The small planetarium model and solar system chart, 22"x17", may be set to show actual positions of the earth, the moon and planets at any given time. Each set includes planetarium, chart and study guide.
• Durable, easy-to-move plus it's double-sided to your your message seen
• Curved sign deflects wind for added stability
• Holds two standard 36"H x 48"W corrugated plastic sign panels included
• Exclusive "Grip-Tip-Roll" system eliminates lifting and carrying
• Features wheels on both sides for increased portability
• Rolling A-Frames are rust-proof, durable and long lasting
Ready2Use Next Generation Large Format Rolling, Quick Loading, Roadside A-frame Style Sidewalk Sign with changeable message boards. Patented and patent pending features for unmatched user friendliness, portability, and affordability. Displays curved sign panels for strength and visual impact. Water filled for stability; can withstand freezing. Just Grip-Tip-Roll to move in or out without lifting/carrying to keep user clean and dry. Resists winds up to 30mph. Black letters and Red Numbers on white background. Displays up to 5 lines of copy on each side.
Includes
2 - 36"x48"x4mm white sign panels with tracks on one side of each board,
421 - 5" letters, numbers, and symbols
24 - 10"numbers
2-10" SALE/Special headers
• Durable, easy-to-move plus it's double-sided to your your message seen
• Curved sign deflects wind for added stability
• Holds two standard 36"H x 48"W corrugated plastic sign panels included
• Exclusive "Grip-Tip-Roll" system eliminates lifting and carrying
• Features wheels on both sides for increased portability
• Rolling A-Frames are rust-proof, durable and long lasting
Ready2Use Next Generation Large Format Rolling, Quick Loading, Roadside A-frame Style Sidewalk Sign with changeable message boards. Patented and patent pending features for unmatched user friendliness, portability, and affordability. Displays curved sign panels for strength and visual impact. Water filled for stability; can withstand freezing. Just Grip-Tip-Roll to move in or out without lifting/carrying to keep user clean and dry. Resists winds up to 30mph. Black letters and Red Numbers on white background. Displays up to 5 lines of copy on each side.
Includes
2 - 36"x48"x4mm white sign panels with tracks on one side of each board,
421 - 5" letters, numbers, and symbols
To investigate the properties of lenses and to construct simple optical instruments. Kit comprised of the following: Two lamp holders, each in cast alloy shade with two axial slots. Complete with two meter 2-core cable and lamp. Shade has integral support arm which is clamped at right angle to the vertical rod, 165 mm long, fitted on heavy cast base, stove hammer finish. One each right and left hand cylindrical lamp shield of light alloy in matt black finish with slot parallel to the axis, size 190 x 60 mm, Height x Diameter. Two black plastic plates, 100 x 80 mm, with 17 equispaced parallel slots. Two black plastic plates, 130 x 80 mm, each with single and triple slits. Two metal support brackets, matt black finish with spring-loaded clips to hold the plates. Four black finish metal light barriers, height 80 mm. Ten Cylindrical Lens ( 8 plano-convex, and 2 plano-concave ), size 50 x 50 mm, Side x Height. Manual included.
To investigate the properties of lenses and to construct simple optical instruments. Kit comprised of the following: Two lamp holders, each in cast alloy shade with two axial slots. Complete with two meter 2-core cable and lamp. Shade has integral support arm which is clamped at right angle to the vertical rod, 165 mm long, fitted on heavy cast base, stove hammer finish. One each right and left hand cylindrical lamp shield of light alloy in matt black finish with slot parallel to the axis, size 190 x 60 mm, Height x Diameter. Two black plastic plates, 100 x 80 mm, with 17 equispaced parallel slots. Two black plastic plates, 130 x 80 mm, each with single and triple slits. Two metal support brackets, matt black finish with spring-loaded clips to hold the plates. Four black finish metal light barriers, height 80 mm. Ten Cylindrical Lens ( 8 plano-convex, and 2 plano-concave ), size 50 x 50 mm, Side x Height. Manual included.
A self-contained unit to measure and study refraction of light. Incident and refractive rays are easily seen and measured. Light rays air into water, water to air and water in water can be studied easily with the help of built-in laser, as a light source, which revolves and can be fixed at any point around a circular graduated scale. With leveling screws to level the water in the tank. Circular scale 160 mm ( 6-3/8 in.) Diameter.
A self-contained unit to measure and study refraction of light. Incident and refractive rays are easily seen and measured. Light rays air into water, water to air and water in water can be studied easily with the help of built-in laser, as a light source, which revolves and can be fixed at any point around a circular graduated scale. With leveling screws to level the water in the tank. Circular scale 160 mm ( 6-3/8 in.) Diameter.
This 3-D model, 24"W x 18"H, depicts the substructures of all types of rock formations and incorporates hands-on activities as students match the rock specimens to the substructure. Graphic representation of the rock beds and real rock samples. Includes comprehensive Teacher's Guide which contains lab activities, color overhead transparency, blackline reproduction master, and 20 rock and sediment specimens. Transparent model cover and marking pen also included. Grades 5-12.
This 3-D model, 24"W x 18"H, depicts the substructures of all types of rock formations and incorporates hands-on activities as students match the rock specimens to the substructure. Graphic representation of the rock beds and real rock samples. Includes comprehensive Teacher's Guide which contains lab activities, color overhead transparency, blackline reproduction master, and 20 rock and sediment specimens. Transparent model cover and marking pen also included. Grades 5-12.
• Durable, thick walled plastic bases won't rust, dent, or crack
• Sturdy plastic wheels for easy relocation
• 60" Square plastic post eliminates sign twisting
• Withstands strong winds without tipping over when filled with sand
• Large fill and drain holes
• Zinc plated hardware for attaching a sign included
• Available with 18"D x 12"H or 24"D x 12"H base
• Available in 4 colors
• Made in the U.S.A.
* Signs not included
The Roll-A-Post™ Portable Sign Post has a thick walled plastic base that won't chip, crack, or crumble like concrete. The hollow base has a large fill hole for sand. When filled with sand the Roll-A-Post withstands strong winds without tipping over. The plastic square tube post has reinforcing internal cross bars making it more durable and stable than round posts. Unlike round posts, the square post prevents sign twisting. 60"L post with pre-drilled holes for multiple sign sizes with Included zinc plated hardware. Made in the U.S.A.
* Signs not included
Includes 8 posts (3/4" x 4') and 100' of pennant streamers.
Due to high demand, this item can take 2 to 4 weeks for delivery.
Elenco's Snap Circuits® makes learning electronics easy and fun! Just follow the colorful pictures in our manual and build exciting projects such as FM radios, digital voice recorders, AM radios, burglar alarms, doorbells, and much more! You can even play electronic games with your friends. All parts are mounted on plastic modules and snap together with ease. Enjoy hours of educational fun while learning about electronics. No tools required.
Extreme Version - Contains over 80 parts to build over 750 projects. Includes everything from SC-500 plus projects in solar, electromagnetism, vibration switches, and 70 computer interfaced projects. Includes Projects 512-692 and CI-73 manuals.
Click here to download the CI-73 Software.
Features:
- Contains over 80 snap-together parts. Build over 750 exciting projects.
- Includes 70 computer interfaced projects and CI-73 manual
- Electrical components provide students ages 8+ with hands-on experience designing and building models of working electrical circuits.
- Snap-together parts require no tools and ensure correct connections.
- Requires 4 "AA" batteries (not included)
- Clear and concise illustrated manual included and available online
The software in this product is not Mac-compatible, but you can find a similar Mac version at http://www.faberacoustical.com/apps/mac/signalscope/. It will not match our manual exactly, but the differences are minor and it should be easy to understand. The software at this link is not related to Elenco Electronics, Inc. in any way; we do not support it or accept any responsibility for it.
Elenco's Snap Circuits® makes learning electronics easy and fun! Just follow the colorful pictures in our manual and build exciting projects such as FM radios, digital voice, recorders, AM radios, burglar alarms, doorbells, and much more! You can even play electronic games with your friends. All parts are mounted on plastic modules and snap together with ease. Enjoy hours of educational fun while learning about electronics. Snap Circuits® are endorsed by educators worldwide and used in schools, libraries, museums, STEM programs and creating with Snap Circuits®. The Circuit Safe™ patented safety device unique to Snap Circuits® branded products makes learning circuitry safe. No tools required. Uses "AA" batteries, unless otherwise indicated. Snap Circuits® products have won many awards, including Toy of the Year (TOTY), ASTRA'S Best Toys for Kids, Parent's Choice Recommended, Good Housekeeping's Best Toy, Family Choice, National Parenting Publications Awards (NAPPA Gold), Children's Choice, Dr. Toy (100 Best Children's Products, 10 best Educational Products, Green Toy Company), The inaugural Seriously STEM award & KAPi Award.
Elenco's Snap Circuits® makes learning electronics easy and fun! Just follow the colorful pictures in our manual and build exciting projects such as FM radios, digital voice, recorders, AM radios, burglar alarms, doorbells, and much more! You can even play electronic games with your friends. All parts are mounted on plastic modules and snap together with ease. Enjoy hours of educational fun while learning about electronics. Snap Circuits® are endorsed by educators worldwide and used in schools, libraries, museums, STEM programs and at home. The Circuit Safe® patented safety device unique to Snap Circuits® branded products makes learning circuitry safe. No tools required. Uses "AA" batteries, unless otherwise indicated. Snap Circuits® products have won many awards, including Toy of the Year (TOTY), ASTRA'S Best Toys for Kids, Parent's Choice Recommended, Good Housekeeping's Best Toy, Family Choice, National Parenting Publications Awards (NAPPA Gold), Children's Choice, Dr. Toy (100 Best Children's Products, 10 best Educational Products, Green Toy Company), The inaugural Seriously STEM award & KAPi Award.
Thanks to the modular design, these Small Parts Plastic Shelf Bins achieve maximum cube utilization. Manufactured by Schaefer from high density FDA approved Polypropylene, shelf bins withstand oils and grease, and are impervious to most chemicals. Bins and dividers are available in popular blue color. Dividers can be labeled for improved classification of small items. Comes in a set of 10 bins and 30 dividers.
Designed to maximize cube storage utilization in your system
- Made with injection molded heavy-duty FDA approved polypropylene
- Bins resist oil, grease and are unaffected by most chemicals
- Available in Blue color
- Outside Product dimensions - 23.3"L x 9.1"W x 3.6"H
• All Plastic Sign Frame
• Regressed sign area helps to protect sign faces
• Features “click lock” hinges for a positive interlock in the open position>
• Can be internally ballasted with sand
• Stacking lugs facilitate handling by keeping stacked units from sliding and damaging sign faces
• Outside Dimensions: 45”H X 25”W x 3”D
• Weight: 18.5 lbs (28.5 lbs. with sand)
The most cost effective way to advertise events, direct traffic or alert students of important information. Just attach your own 24" x 36" poster or sign with screws, or purchase our SA872P Changeable Message Sign Kit (sold separately). Overall Size 25" wide x 45" high. Sign regress of 24" wide x 36" high. Patented Locking Hinge Keeps Message Board Open. Hole with plug for sand ballasting. Unit weighs 18.5 lbs (28.5 lbs. with sand). Stacking lugs assure no sliding and scratching during shipping. Available only in white.Does not qualify for free shipping.