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18" LED Lighted Reflective Paddle Stop Sign18" LED Lighted Reflective Paddle Stop Sign
18" LED Lighted Reflective Paddle Stop Sign
SS689D

• Exceeds MUTCD standards
• High power white LEDs in the letters
   STOP side(s): 52 LEDs
   SLOW side: 58 LEDs
• Mountable Design
• Automatic 'tilt' shut off
• HIP grade reflective on SLOW side
• Engineer grade reflective on STOP side(s)
• Rechargeable lithium ion battery
• Lightweight and durable design
• Visible up to one mile away

These lightweight LED illuminated paddle signs come in Stop/Stop and Stop/Slow styles and weigh only 2.1 lbs. The signs can be used for several hours on a single charge of their lithium rechargeable battery. The perfect sign for crossing guards that need to direct traffic in low light setting. Visible up to a mile away.

Specifications
Weight: 2.1 lbs
Visibility: Up to 1 mile
Functions: On, Flashing
Full Charge Run Time:
Flashing: 6.5 hours
Constant On: 3.5 hours
Battery Life: 3 years
Warranty: 1 year

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From $21.50 $250.00 Each
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Made in the USAYouth Small-XLSave 16%
Deluxe Children's Mesh Vest - Orange
Deluxe Children's Mesh Vest - Orange
SF003P/S

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

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$29.95 Each $35.50 Each
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Demonstration Scale - 20N Capacity
Demonstration Scale - 20N Capacity
14977

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

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$43.20 Each $54.00 Each
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Classroom Liquid Measurement Set (Set of 19)Classroom Liquid Measurement Set (Set of 19)
Classroom Liquid Measurement Set (Set of 19)
15706

• Deluxe set includes everything needed to teach liquid measurement and equivalencies
• Students will recognize, measure and estimate liquid volumes
• Set includes 5 Measuring Jars, 3 Liquid Measurers, 5 Measuring Cups, and 6 Measuring Spoons
• All pieces are clearly marked and made of durable plastic
• Ages 5+


This deluxe set is the perfect sized classroom set for learning measurement equivalents. Students practice customary capacities, liquid measurement and metric conversions with suggested activities included. Made of durable plastic, each piece is clearly marked to provide years of use. Includes teacher's guide. Set includes a liquid measuring cup (8oz/250ml), pint (16oz/500ml), quart (32oz/1000ml), standard spoons, 1 teaspoon,1 tablespoon, standard cups, measuring jars with gill, pint, quart, half-gallon, gallon (metric 100ml-3000ml)

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$26.36 Set $32.95 Set
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Jumbo Full View Test Tube Rack
Jumbo Full View Test Tube Rack
16612

Unique design gives you greater visibility of tube contents. Sturdy dual-purpose rack can be used as test tube support and drying rack. No accidental tipping of racks. Will not scratch or break test tubes. Racks are easy to clean, are chemically resistant and autoclavable. Dimensions 11 1/8" wide x 5 1/4" deep x 2 5/8" high. Will hold up to 160 test tubes 10-13mm in diameter and has 189 drying pins. Made in USA.
Unique design gives you greater visibility of tube contents. Sturdy dual-purpose rack can be used as test tube support and drying rack. No accidental tipping of racks. Will not scratch or break test tubes. Racks are easy to clean, are chemically resistant and autoclavable. Dimensions 11 1/8" wide x 5 1/4" deep x 2 5/8" high. Will hold up to 160 test tubes 10-13mm in diameter and has 189 drying pins. Made in USA.

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$27.16 Each $33.95 Each
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All About Waves (DVD)
All About Waves (DVD)
D054

Sound, light, heat and even earthquakes travel in waves. Waves are a transfer of energy, and understanding them allows us to better understand the world around us. Students learn about the common characteristics of waves through real-life examples and clearly illustrated graphics. A fun, hands-on activity will help students understand these basic concepts. This program is one of 11 volumes in the Physical Science for Children DVD Series in the Schlessinger Science Library. Part of the Schlessinger Science Library for Children Collection. This title correlates to the National Science Education Standards for Physical Science -- properties of objects and materials, position and motion of objects and light, heat, electricity and magnetism. A Teacher's Guide is included and available online. 23 minutes. Grades K to 4.

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$26.95 Each $29.95 Each
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Super Stripe Traffic Paint - Red
Super Stripe Traffic Paint - Red
SS224D

Super Stripe Traffic Paint is heavy-duty and lays miles of lines so you get more stripes per dollar. One case will give you about 2,400 linear feet of bright crisp 3" lines. Perfect for parking lots, floors and safety zones. 12 cans/case.

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$37.86 Case $52.95 Case
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Microplates - Small Wells (Pack of 6)
Microplates - Small Wells (Pack of 6)
13915

For micro chemistry experiments. Microplate has 96 small wells.
For micro chemistry experiments. Microplate has 96 small wells.

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$27.16 Set $33.95 Set
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General Biology Slides (18 Slides)
General Biology Slides (18 Slides)
44148

"Starting to Know" life through a microscope is the theme. Slides are: Amoeba, Paramecium, Plankton, Sponge spicules, Fruitfly, frog and human blood, fish scales, Squamous epithelium, muscle, bacteria, Euglena, Spirogyra, Diatoms, Yeast cells, Mushroom section, Onion epidermis, Magnolia, pollen grains and Lily ovary.
"Starting to Know" life through a microscope is the theme. Slides are: Amoeba, Paramecium, Plankton, Sponge spicules, Fruitfly, frog and human blood, fish scales, Squamous epithelium, muscle, bacteria, Euglena, Spirogyra, Diatoms, Yeast cells, Mushroom section, Onion epidermis, Magnolia, pollen grains and Lily ovary.

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$35 Set $51.00 Set
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Properties of Gases (DVD)
Properties of Gases (DVD)
D015

In Properties of Gases, students are introduced to kinetic molecular theory and learn about the physical relationships that exist between temperature, pressure, volume and density in gases. Students will see how the gas laws apply to living systems by developing an experimental design to measure the production and consumption of oxygen and carbon dioxide during cellular respiration. Part of the multivolume Science Lab Investigations! DVD Series. Includes a Teacher's Guide.

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$35.95 Each $39.95 Each
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Flight (DVD)
Flight (DVD)
D060

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.

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$35.95 Each $39.95 Each
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All About Solids, Liquids & Gases (DVD)
All About Solids, Liquids & Gases (DVD)
D052

In All About Solids, Liquids and Gases, young students will be introduced to the three common forms of matter. They'll learn that all things are made up of tiny particles called atoms and that the movement of these particles determines the form that matter takes. In solids, the particles are packed tightly together and move very little. The particles in liquids are more spread out and move faster. In a gas, the particles are spread even farther apart and move even faster. Kids will also discover how matter can change from one form into another when energy is added or taken away. The terms melting point, freezing point and boiling point are introduced and clearly explained. Includes many real-life examples and colorful graphics, along with a fun, hands-on activity that demonstrates how different liquids evaporate at different rates. This program is based on the concepts outlined in the National Science Education Standards for Physical Science: properties of objects and materials, position and motion of objects and light, heat, electricity and magnetism. The program is one of 11 volumes in the Physical Science for Children DVD Series in the Schlessinger Science Library. Part of the Schlessinger Science Library for Children Collection. A Teacher's Guide is available online. 23 minutes. Grades K to 4.

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$26.95 Each $29.95 Each
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All About Properties of Matter (DVD)
All About Properties of Matter (DVD)
D050

Most children know how to describe an object -- by color, size and shape. Here they'll learn that all objects are made of matter and that all matter can be described with basic scientific properties -- mass, weight, volume and density. Each of these properties is described using fun, real-life examples. With clear illustrations and hands-on activities, students will gain a basic understanding of the properties of matter. This program is one of 11 volumes in the Physical Science for Children DVD Series in the Schlessinger Science Library. Part of the Schlessinger Science Library for Children Collection. This title correlates to the National Science Education Standards for Physical Science -- properties of objects and materials, position and motion of objects, and light, heat, electricity and magnetism. A Teacher's Guide is included and available online. 23 minutes. Grades K to 4.

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$26.95 Each $29.95 Each
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All About Magnets (DVD)
All About Magnets (DVD)
D048

Why does a magnet stick to the refrigerator, but not to the wooden cabinets? This question will be answered as viewers discover what makes something "magnetic." Students learn about positive and negative forces, the North and South Poles, and the basic concepts of why opposites attract. Children find out more about what magnets are used for and in which simple machines they are found. With a hands-on experiment and real-world examples, these concepts are more easily understood. This program is one of 11 volumes in the Physical Science for Children DVD Series in the Schlessinger Science Library. Part of the Schlessinger Science Library for Children Collection. This title correlates to the National Science Education Standards for Physical Science -- properties of objects and materials, position and motion of objects, and light, heat, electricity and magnetism. A Teacher's Guide is available online. 23 minutes. Grades K to 4.

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$26.95 Each $29.95 Each
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Additional Student Charts and Mineral Samples for 12044
Additional Student Charts and Mineral Samples for 12044
12045

Set of 10 additional student charts and mineral samples for use with the What Mineral Is It? classroom project (Item # 12044).

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$26.95 Set $41.95 Set
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TriVu® 3 Sided Safety Sign, Social DistancingTriVu® 3 Sided Safety Sign, Social Distancing
TriVu® 3 Sided Safety Sign, Social Distancing
SS646P

• Helps to mark a safe distance between guests
• Allows a business to be in compliance with government social distancing guidelines
• High visibility fluorescent green
• UV Protect for indoor/outdoor use
• 34% more viewing space compared to 4-sided signs

Schools, retail and industrial facilities need portable signage to provide visibility and awareness related to current concerns. These 3 Sided Safety Sign cones are essential for keeping everyone safe and informed.

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$39.95 $49.95
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CheckTemp Digital Thermometer - Celsius
CheckTemp Digital Thermometer - Celsius
12937

All-in-one unit combining a probe and a meter. Probe is NTC thermistor, housed in a stainless steel shaft. Shaft has a pointed tip for easy penetration of frozen or semi-solid materials. Provides highly accurate temperature measurements with very quick response time. SPECIFICATIONS: Range: -50 to +150ºC. Accuracy: 0.2ºC (-20 to +90ºC) and 0.5ºC (-50 to -20ºC and +91 to +150ºC). Battery: 1 1.4V, 3000 hours of continuous use. Dimensions: 66 x 50 x 25 mm. Probe: Stainless steel, 105 mm x 3 mm diameter.

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$31.96 Each $39.95 Each
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Butane Burner
Butane Burner
15736

Small butane burner uses clean burning butane and features a trigger ignition eliminating the need for wicks, matches or a central gas line. Stable, tip-resistant design and easy grip handle make the burner safe and portable. The flame height is fully adjustable and can reach a maximum temperature of approximately 1300 degrees C. The burner has a two hour fuel capacity and is compatible with standard butane cartridges. Fuel sold separately. One tank full will burn 1-2 hours.

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$42 Each $52.50 Each
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CheckTemp Digital Thermometer - Fahrenheit
CheckTemp Digital Thermometer - Fahrenheit
12936

All-in-one unit combining a probe and a meter. Probe is NTC thermistor, housed in a stainless steel shaft. Shaft has a pointed tip for easy penetration of frozen or semi-solid materials. Provides highly accurate temperature measurements with very quick response time. SPECIFICATIONS: Range: -58 to +300ºF. Accuracy: 0.4ºF (-4 to +194ºF) and 1ºF (-58 to -4ºF and +195 to +300ºF). Battery: 1 1.4V, 3000 hours of continuous use. Dimensions: 66 x 50 x 25 mm. Probe: Stainless steel, 105 mm x 3 mm diameter.
All-in-one unit combining a probe and a meter. Probe is NTC thermistor, housed in a stainless steel shaft. Shaft has a pointed tip for easy penetration of frozen or semi-solid materials. Provides highly accurate temperature measurements with very quick response time. SPECIFICATIONS: Range: -58 to +300ºF. Accuracy: 0.4ºF (-4 to +194ºF) and 1ºF (-58 to -4ºF and +195 to +300ºF). Battery: 1 1.4V, 3000 hours of continuous use. Dimensions: 66 x 50 x 25 mm. Probe: Stainless steel, 105 mm x 3 mm diameter.

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$31.96 Each $39.95 Each
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Alkalinity Testing Kit
Alkalinity Testing Kit
14525

This parameter is important in determination of the corrosive properties of water, caused by carbonates, bicarbonates as well as dissolved salts. Testing alkalinity is important in the treatment of drinking water, waste water, swimming pools, heating and cooling systems, food and beverage systems, and soil and environmental testing, as well as in agriculture, farming and fish farming. Includes 110 tests.

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$35.60 Each $44.50 Each
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Beaker Tongs
Beaker Tongs
11881

Handles beakers from 100 to 1500 ml capacity. Stainless steel. Riveted joint. . .Jaws are fiberglass covered. Length 13 1/2".
Handles beakers from 100 to 1500 ml capacity. Stainless steel. Riveted joint. . .Jaws are fiberglass covered. Length 13 1/2".

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$29.20 Each $36.50 Each
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AC Adapter For Ohaus Scout Scales
AC Adapter For Ohaus Scout Scales
12624

AC Adapter For Ohaus Scout Scales
AC Adapter For Ohaus Scout Scales

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$37.56 Each $46.95 Each
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High Grip Hollow Top Test Tube Plug Caps
High Grip Hollow Top Test Tube Plug Caps
16565

These plug caps for test tubes are high grip hollow made of low density polyethylene. Hollow caps makes insertion and removal from test tubes easy. Sold in packs of 500.

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From $23.96 $29.95 Pack
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Super Scanner Rechargeable Kit
Super Scanner Rechargeable Kit
SA115P

The Garrett Rechargeable Battery Kit is a great metal detector accessory for your Garret Hand-Held Super Scanner Metal Detector (SA114P). The Recharger Kit allows for recharging the metal detector without the need to remove the battery. This Garrett Recharger Kit provides an additional source of power for an extended use of the metal detector. The Garrett Recharger Kit comes with a cadmium-free Ni-MH battery and a 110 V charger for faster charging.

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$28.50 Each $32.50 Each