• Personal Protective Equipment
• Eye Protection
• Bouton Goggles
Soft vinyl frame with 184 perforations for maximum ventilation. Optical quality, distortion free lenses. Adjustable elastic band. Easily fits over glasses. One size fits all.
Economical metal vernier caliper with 140mm capacity. Features inside and outside jaws, full length depth gauge, friction ruler and sliding lock for gauging. Graduated in millimeter and 1/16th of an inch.
Economical metal vernier caliper with 140mm capacity. Features inside and outside jaws, full length depth gauge, friction ruler and sliding lock for gauging. Graduated in millimeter and 1/16th of an inch.
• One of our most popular vests for over 20 years
• Durable Vinyl coated mesh
• Hook/loop side closures
• Reflective panels front & back
• CROSSING GUARD printed on front and back
• Available in 2 sizes
Absolutely the finest safety vest on the market. Durable fluorescent orange woven vinyl-coated with Reflexite Prismatic tape front and back with printed legend CROSSING GUARD. Vertical stripes over shoulders and on hook-and-loop adjustable belts provide 360 degrees of reflective visibility. Hoop-and-loop front closure.
• Front and back of the vest is 18" across from side to side
• 12 inch belts on each side for adjustability
• Measures 48 inches or 57 inches from bottom hem on the front across the shoulders to bottom hem on the back
• One of our most popular vests for over 20 years
• Durable Vinyl coated mesh
• Hook/loop side closures
• Reflective panels front & back
• CROSSING GUARD printed on front and back
• Available in 2 sizes
Absolutely the finest safety vest on the market. Durable fluorescent orange woven vinyl-coated with Reflexite Prismatic tape front and back with printed legend CROSSING GUARD. Vertical stripes over shoulders and on hook-and-loop adjustable belts provide 360 degrees of reflective visibility. Hoop-and-loop front closure.
• Front and back of the vest is 18 inches across from side to side
• 12 inch belts on each side for adjustability
• Measures 48 inches or 57 inches from bottom hem on the front across the shoulders to bottom hem on the back
• One of our most popular vests for over 20 years
• Durable Vinyl coated mesh
• Hook/loop side closures
• Reflective panels front & back
• CROSSING GUARD printed on front and back
Absolutely the finest safety vest on the market. Durable fluorescent orange woven vinyl-coated with Reflexite Prismatic tape front and back with printed legend CROSSING GUARD. Vertical stripes over shoulders and on hook-and-loop adjustable belts provide 360 degrees of reflective visibility. Hoop-and-loop front closure.
• Front and back of the vest is 18 inches across from side to side
• 12 inch belts on each side for adjustability
• Measures 48 inches from bottom hem on the front across the shoulders to bottom hem on the back
Affordable, Breathable, High Visibility Safety Outerwear. Polyurethane on 150 denier polyester. An innovative product that is ANSI 107 compliant for high visibility and breathability. The Vision provides all season comfort at an affordable price. Ideal Applications:For use in environments where high visibility and breathability are desired for wearer safety and comfort.
Polyurethane on 150 denier polyester. An innovative product that is ANSI 107 compliant for high visibility and breathability. The Vision provides all season comfort at an affordable price.
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.
• Designed for use in multipurpose applications.
• Fluorescent yellow-green background material for excellent daytime visibility.
• 2 inch silver reflective tape reflects light for 360° nighttime conspicuity.
• Breathable. Test Method ASTM E96.
• Waterproof, breathable fabric for all season comfort.
• Full cut shoulder with 90° sleeve to body angle for maximum freedom of movement.
• Stitched and taped sealed seams for 100% waterproof protection.
• Storm fly front seals out wind and rain.
• Non-conductive, non-corrosive hardware.
• Roll-a-way hood in collar design for added convenience.
• Easy access cargo pockets with hook & loop closure.
• Hook & loop take-up straps on sleeves for adjustable fit.
• Mildew resistant.
Affordable, Breathable, High Visibility Safety Outerwear. Polyurethane on 150 denier polyester. An innovative product that is ANSI 107 compliant for high visibility and breathability. The Vision provides all season comfort at an affordable price.
Ideal Applications: For use in environments where high visibility and breathability are desired for wearer safety and comfort.
Polyurethane on 150 denier polyester. An innovative product that is ANSI 107 compliant for high visibility and breathability. The Vision provides all season comfort at an affordable price.
Ideal Applications: For use in environments where high visibility and breathability are desired for wearer safety and comfort.
• Snap-fly front overalls.
• ANSI/ISEA 107 Class E compliant overalls for high visibility and breathability.
• Designed for use in multipurpose applications.
• Fluorescent yellow-green background material for excellent daytime visibility.
• 2 inch silver reflective tape reflects light for 360° nighttime conspicuity.
• Breathable. Test Method ASTM E96.
• Waterproof, breathable fabric for all season comfort.
• Stitched and taped sealed seams for 100% waterproof protection.
• Non-conductive, non-corrosive hardware.
• Suspenders with quick release buckles and crossover.
• Hook & loop take-up straps on ankle cuffs for adjustable fit.
• Mildew resistant.
Affordable, Breathable, High Visibility Safety Outerwear. Polyurethane on 150 denier polyester. An innovative product that is ANSI 107 compliant for high visibility and breathability. The Vision provides all season comfort at an affordable price. Ideal Applications: For use in environments where high visibility and breathability are desired for wearer safety and comfort.
Polyurethane on 150 denier polyester. An innovative product that is ANSI 107 compliant for high visibility and breathability. The Vision provides all season comfort at an affordable price.
Ideal Applications: For use in environments where high visibility and breathability are desired for wearer safety and comfort.
• ANSI/ISEA 107 Class E compliant pants for high visibility and breathability.
• Designed for use in multipurpose applications.
• Fluorescent yellow-green background material for excellent daytime visibility.
• 2 inch silver reflective tape reflects light for 360° nighttime conspicuity.
• Breathable. Test Method ASTM E96.
• Waterproof, breathable fabric for all season comfort.
• Stitched and taped sealed seams for 100% waterproof protection.
• Non-conductive, non-corrosive hardware.
• Elastic waist pants with adjustable drawcord.
• Side openings on pants with flap closure.
• Hook & loop take-up straps on ankle cuffs for adjustable fit.
• Mildew resistant.
Includes specimens in the following areas: rock-forming minerals; ore-forming minerals; industrial minerals; and igneous, sedimentary, and metamorphic rocks. 40 specimens, 2" x 1 1/2". Comes in a compartmented container.
Includes specimens in the following areas: rock-forming minerals; ore-forming minerals; industrial minerals; and igneous, sedimentary, and metamorphic rocks. 40 specimens, 2" x 1 1/2". Comes in a compartmented container.
Washington Student Collection Designed to accompany the Washington School Collection. 40 unlabeled chips in a zip-lock storage bag.
Washington Student Collection Designed to accompany the Washington School Collection. 40 unlabeled chips in a zip-lock storage bag.
Made from clear glass sheet, (1.8 to 2.0 mm thick) fine ground and polished edges. Packed in boxes of 12.
These 125mm Watch Glasses are made from clear flint glass (1.8 to 2.0mm thick), and have fine ground and polished edges. Packed in boxes of 12.
Made from clear glass sheet, (1.8 to 2.0 mm thick) fine ground and polished edges. Packed in boxes of 12.
These 75mm Watch Glasses are made from clear flint glass (1.8 to 2.0mm thick), and have fine ground and polished edges. Packed in boxes of 12.
These snug fitting black rubber bases are made from recycled materials Bases are interchangeable with the Navicade™ or 42" Watchtower Stacker Cones. Available in 3 weight levels.
Water is vital to all life on Earth and covers nearly three-fourths of our planet's surface. Where does it come from? Will we use it up eventually? In The Water Cycle, students learn that Earth has the same water supply today as it did millions of years ago. Examine the amazing process by which water is continually recycled and transported from place to place through evaporation, condensation and precipitation. Also find out how energy from the sun drives the water cycle and how the atmosphere prevents water from slipping away from Earth. A fun, hands-on investigation demonstrates how an artesian well works, while a visit to a desalination plant showcases how salt water is purified. Part of the Earth Science in Action DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
Ideal field test kit for performing 4 important experiments on water pollution. Test water samples for dissolved oxygen content, chlorides, phosphates, and water hardness. This kit provides all the apparatus and materials necessary for performing each test several times. Comes complete with instruction booklet.
Set includes two helical springs and a length of cotton string. The long narrow spring measures 3/4" x 72", and can be extended to 5 meters. Larger spring measures 3" x 4". Can be extended many times its length without distortion. Includes activity guide. Shipping weight: 2.5 lbs.
Set includes two helical springs and a length of cotton string. The long narrow spring measures 3/4" x 72", and can be extended to 5 meters. Larger spring measures 3" x 4". Can be extended many times its length without distortion. Includes activity guide. Shipping weight: 2.5 lbs.
Spring measures 3" x 4". Can be extended many times its length without distortion.
Spring measures 3" x 4". Can be extended many times its length without distortion.
For demonstrating longitudinal and transverse wave motion. Consists of a number of eccentric aluminum discs supporting a series of metal rods, joined to a handle. On revolving the handle, simulation of waves can be obtained on the rods running in a metal guide. Mounted on a nicely polished wooden case.
Weather affects everyone, everyday! Introduce Isobars, Jet Streams, Wind Chills and more with this super-sized 44" W x 20" H weather map of the U.S. and Canada. Chart temperatures and cities using bar and line graphs. Write-on/ wipe off board with grommets for easy display, conveniently folds flat. Teacher's guide with weather terms, activities, vinyl cling weather symbols and student recording charts included. Grades 3-8.
The rocks and soil that make up Earth's surface are constantly being affected by a variety of forces, ranging from heat and frost to water and wind. In Weathering and Erosion, students will discover the natural forces that cause weathering, erosion and deposition, and see the many effects that these processes have on Earth's surface. Students will examine natural structures around the world and see how weathering and erosion have affected them, while discovering ways in which people have become better prepared to battle these forces through conservation. In addition, a fun, hands-on experiment demonstrates how running water erodes different types of soil. Part of the Earth Science in Action DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades 5 to 8.
Hanging metric weights used to extend scale capacity of Ohaus 750-S0 and 750-SW metric triple-beam balances (not included). Cast iron construction has durability and long life. The set of three attachment weights includes two 1,000g weights and one 500g weight.
Calibration weights are used to measure the weight or mass of an object using a balance or scale, or to calibrate other weights or instruments. Calibration weights can be certified or uncertified. Certified weights meet strict guidelines for accuracy and can usually be recertified. Certified weights are used in labs where a high degree of accuracy and repeatability is required. Uncertified weights are used where a lower degree of accuracy is required, including student laboratories, rough weighting operations, and measuring force. Hooked and slotted weights are often used to measure pressure, torque, and tensile strength, and to demonstrate basic laws of physics. Calibration weights differ from lab weights, which are general purpose weights used to hold an object in place, similar to a paperweight.
Hanging metric weights used to extend scale capacity of Ohaus 750-S0 and 750-SW metric triple-beam balances (not included). Cast iron construction has durability and long life. The set of three attachment weights includes two 1,000g weights and one 500g weight. Calibration weights are used to measure the weight or mass of an object using a balance or scale, or to calibrate other weights or instruments. Calibration weights can be certified or uncertified. Certified weights meet strict guidelines for accuracy and can usually be recertified. Certified weights are used in labs where a high degree of accuracy and repeatability is required. Uncertified weights are used where a lower degree of accuracy is required, including student laboratories, rough weighting operations, and measuring force. Hooked and slotted weights are often used to measure pressure, torque, and tensile strength, and to demonstrate basic laws of physics. Calibration weights differ from lab weights, which are general purpose weights used to hold an object in place, similar to a paperweight.
• Made with 0.35mm thick PVC and polyester fabric
• Detachable hood with drawstring
• Storm flap front with snap closure
• 2 flapped front pockets with snap closures to secure valuables
• Cape vented back
• Corduroy collar for comfort
• Available in 4 Sizes
• Available with or without CROSSING GUARD Emblem on Back
This bright yellow rain jacket is made of tough .35mm PVC and polyester fabric. Corduroy lined collar for comfort. Coat has cape-vented back . Includes detachable hood.
| Chest | Length | Sleeve | |
| Medium | 56 in. | 30.5 in. | 32 in. |
| Large | 58 in | 31.5 in. | 33 in. |
| X-Large | 60 in. | 32 in. | 34 in. |
| 2X-Large | 62 in. | 33 in. | 35 in. |
In this step-by-step classroom project students examine and identify individual rock specimens. As each rock specimen is examined and identified, students progress toward the completion of their own rock reference charts. The Teacher's reference chart uses illustrations and actual specimens for students to consult as they identify unlabeled rock specimens. For grades 6-12.
This chart has illustrations and actual specimens for students to consult as they identify unlabeled rock specimens. For grades 6-12. 23 1/2" x 15 1/5".