Heavy duty glass bell jar, ideal for studying the properties of matter under a vacuum or for isolating experiments from outside interference. The wall thickness is approximately 6mm.The dome's measurements are taken from the inside. Fixed Knob.
Heavy duty glass bell jar, ideal for studying the properties of matter under a vacuum or for isolating experiments from outside interference. The wall thickness is approximately 6mm.The dome's measurements are taken from the inside. Fixed Knob.
Quality glassware assortment for use in general science, or chemistry laboratory. Kit includes following items: two 100ml glass beakers, one 250 ml glass beaker, 1 400 ml glass beaker, two 4 oz. bottles w/ screw caps, two 50 ml Mohr burettes, 1 porcelain crucible, 1 porcelain crucible cover, 1 pipette eye dropper, 12 300ml barnes dropping bottles, 1 porcelain evaporation dish, one 75mm short stem funnel, one 75 mm watch glass, 1 porcelain mortar and pestle, one 10 ml glass cylinder, one 25 ml glass cylinder, one 50 ml glass cylinder, one 100 ml glass cylinder, six 13x100 test tubes, six 18x150 test tubes, six 25x200 test tubes, 4 glass capillary tubing, one 250 ml Erlenmeyer flask, one 8" glass rod and two 100 mm petri dishes. Designed for use by 2-4 students. Shipped in a reusable storage box. 57 pieces total.
Quality glassware assortment for use in general science, or chemistry laboratory. Kit includes following items: two 100ml glass beakers, one 250 ml glass beaker, 1 400 ml glass beaker, two 4 oz. bottles w/ screw caps, two 50 ml Mohr burettes, 1 porcelain crucible, 1 porcelain crucible cover, 1 pipette eye dropper, 12 300ml barnes dropping bottles, 1 porcelain evaporation dish, one 75mm short stem funnel, one 75 mm watch glass, 1 porcelain mortar and pestle, one 10 ml glass cylinder, one 25 ml glass cylinder, one 50 ml glass cylinder, one 100 ml glass cylinder, six 13x100 test tubes, six 18x150 test tubes, six 25x200 test tubes, 4 glass capillary tubing, one 250 ml Erlenmeyer flask, one 8" glass rod and two 100 mm petri dishes. Designed for use by 2-4 students. Shipped in a reusable storage box. 57 pieces total.
When it comes to ensuring the safety of students and pedestrians, every detail matters. That's why our hand-held flags are the perfect tool for crossing guards, traffic controllers, and safety personnel.
Crafted with care, in the USA, each flag features a vibrant 16-inch square nylon design that commands attention and ensures visibility even from a distance. Attached to a sturdy 1-inch diameter PVC handle, these flags are lightweight and easy to grip and maneuver, providing ultimate control in directing traffic flow.
Set includes red, blue, yellow, and orange flags
- Event Management: Perfect for event organizers and staff to manage crowds and direct attendees at school functions, sports events, or assemblies.
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Emergency Preparedness: Essential for emergency responders and security personnel to signal evacuation routes or designate safe zones during drills or real emergencies.
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Parking Lots: Useful for parking attendants to guide vehicles efficiently, especially during drop-off and pick-up times at schools.
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Outdoor Education: Handy for outdoor educators to lead groups during nature walks, field trips, or outdoor learning activities.
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Campus Tours: Valuable for tour guides to lead prospective students and visitors around campus, highlighting points of interest and important landmarks.
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Sporting Events: Great for coaches and referees to signal plays, fouls, or timeouts during sporting events or physical education classes.
- Crowd Control: Essential for security personnel to manage crowds during special events, performances, or assemblies held on school grounds.
- School Bus Loading Zones: Helpful for bus drivers and staff to ensure orderly loading and unloading of students at designated bus stops or loading zones.
• 39"L X 14"W X 2"H Middle Section
• 7"L X 14"W X 2"H End Section
• Reduce vehicle speeds 5-10 mph without tire or vehicle damage.
• Temporary or permanent installation on concrete or asphalt.
• Lightweight and flexible, it conforms to contours of road surface.
• Built to last, withstand over 2,000 psi pressure and won't chip, break or crack
• Easily transported and fast installation without the need for heavy equipment.
• Heavy duty product; Backed by a 2 year warranty;
• Can be installed by a single person with light tools
• Do not require repainting
• Easily movable and removable
• 2 year warranty against materials defect
A Speed Bump is a raised device, which is placed across a roadway to reduce vehicle speeds 5-10 mph. This option is ideal where vehicle speeds are expected to be lower. Order two end pieces and the appropriate number of middle sections to span the width of roadway.
Place in strategic locations on the street, in parking lots, around schools, on private residential thoroughfares or anywhere traffic calming is necessary. It slows traffic effectively without tire or vehicle damage. Use to control traffic speed during public events, gatherings, or special events. Temporary or permanent installation on concrete or asphalt. Mastic or anchor pins available as specified. Lightweight and flexible, it conforms to contours of road surface. Economical and built to last, ENVIROform speed bumps withstand over 2,000 psi pressure. Easily transported and fast installation without the need for heavy equipment. Features: Heavy duty product; Backed by a 2 year warranty; All Speed Bumps and Speed Humps are uniformly made; Can be installed by a single person; Maximum visibility; Do not require repainting; Installed with light tools; Easily movable and removable; Does not chip, break or crack; Long wearing; Environmentally friendly; Promotes recycling awareness; 2 year warranty against materials defect; Custom configurations to your needs.
• 23.5"L X 18.5"W X 1.25"H Middle Section
• 10"L X 18.5"W X 1.25"H End Section
• Reduce vehicle speeds 10-20 mph without tire or vehicle damage
• Ideal for schools and other areas where pedestrian safety is a concern
• Temporary or permanent installation on concrete or asphalt
• Lightweight and flexible
• Conforms to contours of road surface
• Withstands over 2,000 psi pressure
• Won't chip, break or crack
• Backed by a 2 year warranty
• Can be installed by a single person with light tools
• Does not require repainting
• Easily movable and removable
• 2 year warranty against materials defect
A Speed Hump is a raised device, parabolic in shape which is placed across a roadway to reduce speeds to 10-20 mph. These are wide devices ideal for schools and other areas where pedestrian safety is a concern. Order the appropriate number of sections to span width of roadway. Place in strategic locations on the street, in parking lots, around schools, on private residential thoroughfares or anywhere traffic calming is necessary. It slows traffic effectively without tire or vehicle damage. Use to control traffic speed during public events, gatherings, or special events. Temporary or permanent installation on concrete or asphalt. Mastic or anchor pins available as specified. Lightweight and flexible, it conforms to contours of the road surface. Economical and built to last, ENVIROform speed bumps withstand over 2,000 psi pressure. Easily transported and fast installation without the need for heavy equipment. Features: Heavy duty product; Backed by a 2 year warranty; All Speed Bumps and Speed Humps are uniformly made; Can be installed by a single person; Maximum visibility; Do not require repainting; Installed with light tools; Easily movable and removable; Does not chip, break or crack; Long wearing; Environmentally friendly; Promotes recycling awareness; 2 year warranty against materials defect; Custom configurations to your needs.
For Lightweight Protection with Premium Features. The Icon LTE™ premium, lightweight, ANSI compliant, breathable, high visibility pants – polyurethane on 75 denier rip stop polyester. Lightweight material allows for comfort and flexibility while rip stop resists tears and adds durability. Ideal Applications: For use in environments where high visibility and lightweight breathability are desired for wearer safety and comfort.
The Icon LTE™ premium, lightweight, ANSI compliant, breathable, high visibility pants are polyurethane on 75 denier rip stop polyester. Lightweight material allows for comfort and flexibility while rip stop resists tears and adds durability.
Ideal Applications: For use in environments where high visibility and lightweight breathability are desired for wearer safety and comfort.
• ANSI/ISEA 107 Class E compliant pants for high visibility and breathability.
• Loaded with premium features for multipurpose applications.
• 2 inch silver reflective tape reflects light for 360° nighttime conspicuity.
• Breathable. Test method ASTM E96.
• Fluorescent yellow-green background material color for excellent daytime visibility.
• Lightweight, waterproof, breathable material is ideal for warmer climates.
• Stitched and taped sealed seams for 100% waterproof protection.
• Elastic waist pants with adjustable drawcord.
• Hook & loop take-up straps on ankle cuffs for adjustable fit.
• Zippers at leg cuffs allow for easy on and off.
• Snap fly front pants.
• Dark colored cuffs help conceal dirt.
• Side openings on pants with flap closure.
Engineered to provide superior comfort and safety in the toughest work environments. ANSI/ISEA 107 Class 3 compliant for high visibility and breathability. Loaded with premium features for multipurpose applications. Fluorescent yellow-green background material for excellent daytime visibility. 2" silver reflective tape reflects light for 360 degree nighttime conspicuity. For use in environments where high visibility and breathability are desired for wearer safety and comfort. All outerwear is constructed of 5.5 ounce 12 mil thick material.
FEATURES and BENEFITS
• Waterproof, breathable fabric for all season comfort
• Stitched and taped sealed seams for 100% waterproof protection
• Comes with heavy duty suspenders with quick release buckles
• Crossover, Velcro take-up straps on leg cuffs
• Take-up snaps on overall waist for adjustable fit
Inquiry-based activities covering the basics of electricity. Perform a variety of hands-on investigations to study the properties of electricity. Students will explore the concepts of electric currents, open and closed circuits, and series and parallel circuits. They?ll also investigate static electricity using an electroscope. The students will apply the knowledge gleaned from these activities to classify materials as either conductors or insulators of electricity and electrical power. Your students will understand concepts of electrical charge, current, resistance and voltage. Understand the concept of electric circuit and power. Distinguish between resistors in series and parallel. Classify materials as electrical conductors or insulators. Identify cases from everyday life where electricity is being used. Class Size: 40 Students. Grades 7-10
Inquiry-based activities covering the basics of electricity. Perform a variety of hands-on investigations to study the properties of electricity. Students will explore the concepts of electric currents, open and closed circuits, and series and parallel circuits. They?ll also investigate static electricity using an electroscope. The students will apply the knowledge gleaned from these activities to classify materials as either conductors or insulators of electricity and electrical power. Your students will understand concepts of electrical charge, current, resistance and voltage. Understand the concept of electric circuit and power. Distinguish between resistors in series and parallel. Classify materials as electrical conductors or insulators. Identify cases from everyday life where electricity is being used. Class Size: 40 Students. Grades 7-10
NOTE: Expect shipping delays with this product.
Line-Up® Solvent-Based Pavement Striping Spray Paint is a fast-drying product that provides long-lasting durability on outdoor pavement, as well as on indoor surfaces. Pavement Striping Paint is available in the most popular pavement striping colors and also a black for covering up old stripes. VOC compliant. Free of lead hazards. Non-clogging and fast-drying. Available in 5 colors.
Recommended Uses: Use on asphalt, concrete, brick and stone. Great for use in parking lots, school grounds, road surfaces and more.
Includes 8 acrylic plastic blocks: 1 rectangular, 1 semi-circular, 1 double concave, 1 equilateral 60 x 60 x 60 degrees, 2 right angle 90 x 60 x 30 degrees and 90 x 45 x 45 degrees, 1 circular, 1 double concave. 8 mounted color filters. 2 Slit Plates. 3 Mirrors: 1 plane mirror, 1 semicircular, 1 parabolic. 1 Set of Colored Cards. The Light Box is used to perform experiments in reflection, refraction and color mixing. Box has hinged sides to produce divergent, convergent or parallel rays of light. Light Box has grooves to accept slit plates or color filters. Operates on 12 V. spare bulb provided. Supplied in a thermocole box with place for each part.
Includes 8 acrylic plastic blocks: 1 rectangular, 1 semi-circular, 1 double concave, 1 equilateral 60 x 60 x 60 degrees, 2 right angle 90 x 60 x 30 degrees and 90 x 45 x 45 degrees, 1 circular, 1 double concave. 8 mounted color filters. 2 Slit Plates. 3 Mirrors: 1 plane mirror, 1 semicircular, 1 parabolic. 1 Set of Colored Cards. The Light Box is used to perform experiments in reflection, refraction and color mixing. Box has hinged sides to produce divergent, convergent or parallel rays of light. Light Box has grooves to accept slit plates or color filters. Operates on 12 V. spare bulb provided. Supplied in a thermocole box with place for each part.
The lyophilized cultures in this kit are ready to use when you need them. Just add water. Performs same tests as 02429 kit (above). Grades 9-12.
The lyophilized cultures in this kit are ready to use when you need them. Just add water. Performs same tests as 02429 kit (above). Grades 9-12.
For micro chemistry experiments. Microplate has 48 small holes and 12 large wells.
For micro chemistry experiments. Microplate has 48 small holes and 12 large wells.
• All Plastic Sign Frame
• Has a 12in x 24in dry erase board on both sides
• 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: 36”H X 13”W x 3”D
• Weight: 10 lbs.
Molded all plastic hollow sign frame that can be internally weighted down with sand. Only 3 or 4 pounds is recommended per leg. Most of the weight is at the bottom where it acts like an anchor. They are extremely durable. Stacking lugs facilitate handling by keeping stacked units from sliding and damaging sign faces. Features “click lock” hinges for a positive interlock in the open position. Has a 12in x 24in dry erase board on both sides. Outside Dimensions: 36”H X 13”W x 3”D. Weight: 10 lbs. Ships UPS or FedEx Ground. NOTE: This item is not intended to be left outdoors, or used outdoors during wet weather.
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.
Made for Work, but Works for Play. An innovative jacket constructed from a combination of 150 denier fluorescent yellow-green polyester and 360 gram black fleece that keeps you warm and visible, yet cool and comfortable for 3 season protection. Ideal Applications: For use in environments where high visibility and warmth are desired for wearer safety and comfort.
An innovative jacket constructed from a combination of 150 denier fluorescent yellow-green polyester and 360 gram black fleece that keeps you warm and visible, yet cool and comfortable for 3 season protection.
Ideal Applications: For use in environments where high visibility and warmth are desired for wearer safety and comfort.
• ANSI/ISEA 107 Type R Class 2 compliant jacket for high visibility.
• Athletic apparel design and performance adapted for work environments.
• Insulating heavy weight fleece provides warmth and comfort.
• Fluorescent yellow-green background material for excellent daytime visibility.
• 2 inch silver reflective tape reflects light for 360° nighttime conspicuity.
• 4 exterior pockets for added convenience.
• Breathable, insulating fabric for 3 season comfort.
• Overhead shoulder design for complete freedom of movement.
• Storm fly front and zipper front closure seals out wind.
• Front hand warmer pockets with zipper closure.
• Right and left breast security pockets with zipper closure.
• Adjustable elastic drawcord at waist for easy adjustment.
• Black material in high wear areas helps conceal dirt.
• Sleeves are lined for ease of use.
• 2 Mic Tabs.
• Can be zipped into the Icon™ (SS034D) outer shell to create a multi-season comfort system.
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.
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.
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.
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.
• All Plastic Sign Frame
• 24in x 24in blank legend area
• 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: 36”H X 25”W x 3”D
• Weight: 17 lbs.
Small in stature but large sign display area of 24' wide x 24' high is great to advertise games, concerts, plays or any advertising where a smaller sign is need but big visibility. Available in yellow only. Overall Size 25' wide x 36' high
Convert any 24" x 36" A-frame sign into a 2-sided message board sign; displays 7 lines of copy. Contains: 2 large (24" x 36") white sign face with letter tracks, 1 - Set of 314 - 4" black letters and 4" red numbers and symbols.
• STOP/SLOW reversible sign
• Heavy-duty 18" dia aluminum sign
• Visible from one hundred yards away
• Bold 6" high letters
• 70" High PVC tube for safe use.
• Sign is printed on both sides.
This heavy-duty 18 inch diameter aluminum sign is visible from one hundred yards away, has bold 6 inch high letters and is easily recognized by pedestrians and motorists. It is supported by a PVC tube for safe use. Sign is printed with STOP on one side and SLOW on the other side. 70in High.
Order Heavy-Duty Rain Ponchos HERE
Install a sound module to generate the sounds of police cars
Learn the important role resistors and potentiometers
Use a multimeter to measure invisible voltage and current
Use a FM radio module to build an alarm clock
Tap into the awesome world of electronics with this advanced system of snap-together electric building blocks. Start out by experimenting with colorful light-up circuits as you dive into the basics of electricity. Install a sound module to generate the sounds of police cars, ambulances, or fire engines. Learn the important role resistors and potentiometers (variable resistors) play in an electronic circuit. Use a multimeter to measure invisible voltage and current flowing through your circuit. Investigate transistors in switches and amplifiers to learn how the logical circuits in computers work. Build circuits that use sensors to detect moisture, temperature, and visible light. Incorporate capacitors in your circuits to store and discharge electricity for specific functions, such as a countdown clock and a red-green alternate flasher. Test out the indispensable 555 timer to build some complicated circuits. Use an operational amplifier and an FM radio module to build an alarm clock. This kit uses the same unique electric building blocks as our other electronics kits, with the addition of many new advanced components, allowing you to build more complex circuits. The more than 140 electronic components include capacitors, resistors, transistors, LEDs (light emitting diodes), phototransistor, switches, speaker, integrated circuit, infrared LED, diodes, FM tuner, 555 timer, operation amplifier, two potentiometers, electrodes, voltage and current meter, microphone, and 9-volt battery pack.