24" x 36" full color laminated poster. Through space imagery, this poster explores some of the many ways that our knowledge of our own planet has been expanded greatly by using satellites. Topics include making topographical maps, weather forecasting, documenting environmental trends, tracking wildfires, and more.
24" x 36" full color laminated poster. Through space imagery, this poster explores some of the many ways that our knowledge of our own planet has been expanded greatly by using satellites. Topics include making topographical maps, weather forecasting, documenting environmental trends, tracking wildfires, and more.
Graduated Interval: 25ml These bottles are made of translucent and unbreakable low density polyethylene. The distinguishing feature that these bottles contain is the built-in delivery tube making it a one-piece wash bottle. These bottles are graduated on the outer surface to reflect an approximate volume of solution filled or dispensed.
Graduated Interval: 50ml These bottles are made of translucent and unbreakable low density polyethylene. The distinguishing feature that these bottles contain is the built-in delivery tube making it a one-piece wash bottle. These bottles are graduated on the outer surface to reflect an approximate volume of solution filled or dispensed.
This universal cone adapter fits most common traffic cones. Designed to accommodate lightweight signs, flags and lights (battery operated or chemical light sticks). Adapter also makes it easy to interconnect either barricade tape or rope from cone to cone. Cone and sign not included.
A sensational collection that reveals the varied geological specimens found in the United States. Collection includes specimens from each of the 50 States. The rock, mineral or fossil selected to represent that state is individually "keyed" for identification. The key also includes a useful fact and a geologic feature for each individual state. Specimen size 1" x 1" x 1". Grades 3-12. Ages 8-18.
A sensational collection that reveals the varied geological specimens found in the United States. Collection includes specimens from each of the 50 States. The rock, mineral or fossil selected to represent that state is individually "keyed" for identification. The key also includes a useful fact and a geologic feature for each individual state. Specimen size 1" x 1" x 1". Grades 3-12. Ages 8-18.
• 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
• 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
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.