12 3/4" Wide x 10 1/2" Long Printed on One Side These directional reinforcement devices give supplemental standard warnings and directions creating safer traffic control in the school area. Installs in seconds and firmly locks in place. Reusable, All-weather ABS plastic with UV. Used by thousands of schools, cities and utility companies.
12 3/4" Wide x 10 1/2" Long Printed on One Side These directional reinforcement devices give supplemental standard warnings and directions creating safer traffic control in the school area. Installs in seconds and firmly locks in place. Reusable, All-weather ABS plastic with UV. Used by thousands of schools, cities and utility companies.
Sodium acetate, lab grade, anhydrous, powder - 500g.
Sodium chloride, lab grade, crystal - 2.5kg
Sodium phosphate, monobasic, reagent, granular, crystal - 125g.
This Kit is designed for use by all who are curious about solar energy. Included: a solar cell, which is encapsulated in a 1 3/4" x 2 7/8" panel. Also included is a 1.5 volt DC motor, a red plastic propeller, and one 12" lead wire. A fun way to acquire basic knowledge about the energy source of the future.
This Kit is designed for use by all who are curious about solar energy. Included: a solar cell, which is encapsulated in a 1 3/4" x 2 7/8" panel. Also included is a 1.5 volt DC motor, a red plastic propeller, and one 12" lead wire. A fun way to acquire basic knowledge about the energy source of the future.
This kit includes
• (3) blank note cards with envelopes
• (2) preprinted stencil sheets
• (2) frames
• (12) 5-inch x 7-inch sheets of solar print paper
• Detailed instructions.
• Make cool designs using a chemical reaction that relies on the power of the sun.
• Solar prints are a fun and scientific art project to do with friends and family.
• Fun to make and easy to use, solar prints make for a great craft at home or school.
• Made using safe and high quality materials, this product is designed to last.
• Recommended for ages 5 and up.
This big kit includes everything needed to make fun and educational solar prints. Place interesting objects on top of a sheet of light-sensitive solar print paper and expose it to the sun. A quick rinse in water makes the image permanent! Safe and easy to use. A fun science or art project. Each kit includes 12 pieces of 5in x 7in solar paper sheets, two print frame holders, three blank note cards with envelopes, for sending your prints to friends and family, and full instructions.
• Transform a recycled soda can into a solar-powered rover
• This kit includes all the parts necessary to build one solar-powered car.
• Detailed assembly instructions included
• Perfect for a young scientist with an interest in mechanics and alternate energy
• Recommended for ages 8 years and up
Build this cool rover using the kit parts provided and an old soda can. Learn how sunlight is converted to energy. Detailed instructions included.
To study Spectral Lines of Pure Elements / Gases. Gas under pressure in the tubes is used to produce a light for spectral analysis. Brightness of light depends on the nature of gas. Optimum intensity, line resolution and longer life. Metal ends with long life electrodes. About 26 cm long, with 90 -100 mm of central capillary. For intermittent use only, not to be used as a lamp source. These are designed to operate 30 seconds ON~30 seconds OFF. Need Spectrum Tube Power Supply or an Induction Coil, sold separately.
To study Spectral Lines of Pure Elements / Gases. Gas under pressure in the tubes is used to produce a light for spectral analysis. Brightness of light depends on the nature of gas. Optimum intensity, line resolution and longer life. Metal ends with long life electrodes. About 26 cm long, with 90 -100 mm of central capillary. For intermittent use only, not to be used as a lamp source. These are designed to operate 30 seconds ON~30 seconds OFF. Need Spectrum Tube Power Supply or an Induction Coil, sold separately.
• 12" galvanized spike and washer
• For permanent light duty installation
12" Galvanized spike and washer (for permanent light duty installation)
A fine instrument for determining the results of curvature of spherical surfaces such as mirrors and lenses. Its micrometer screw is graduated to measure displacement as small as 0.01mm. The instrument has two brass plates and three steel legs. A flat glass plate is provided for support while taking precision readings.
A fine instrument for determining the results of curvature of spherical surfaces such as mirrors and lenses. Its micrometer screw is graduated to measure displacement as small as 0.01mm. The instrument has two brass plates and three steel legs. A flat glass plate is provided for support while taking precision readings.
Huge, metal construction. Baked shoving hammertone finish. Shows that pressure of a liquid depends on the depth/height. Measures 16 1/2" from bottom of base to top of cylinder
Flexible stainless steel blade with rounded end, mounted in a polished wood handle.
8 inch flexible stainless steel blade with rounded end, mounted in a polished wood handle.
• Hi Viz Lime Class 2 ANSI Approved
• Light weight, cool vest with reflective silver stripes
OccuLux Economy Single Band Vest features the lowest priced ANSI Class 2 high quality vest on the market. Bright, lightweight polyester material. 2" 3M Scotchlite reflective tape. One 360° horizontal stripe plus two vertical shoulder stripes. Hook and loop closure. Machine washable. Please note, vests are sized to fit over work clothes. For a more comfortable looser fit, we suggest you buy the next size up.
Polypropylene covered for retrieving stirring bars from most liquids. Powerful magnet at one end, ring handle at the other end. 300mm length.
Polypropylene covered for retrieving stirring bars from most liquids. Powerful magnet at one end, ring handle at the other end. 300mm length.
Compare and contrast the physical properties of streak and color in this 8 specimen mineral collection. Numbered specimens are approximately 1 x 1.5". Streak plate and key sheet included. Grades 5-12. Ages 10-18. Ages 10-18.
Compare and contrast the physical properties of streak and color in this 8 specimen mineral collection. Numbered specimens are approximately 1 x 1.5". Streak plate and key sheet included. Grades 5-12. Ages 10-18. Ages 10-18.
• Perfect for the classroom, gym or playground
• Made of styrene to last
• Easily fits our cone top sign holders
• Set of 5 - 1-Way (right & left), RR Xing, No parking, crosswalk.
Set of 5 - 1-Way (right & left), RR Xing, No parking, crosswalk. Perfect for the classroom, gym or playground. Made of styrene to last. Easily fits our cone top sign holders.
• Perfect for the classroom, gym or playground
• Made of styrene to last
• Easily fits our cone top sign holders
• Set of 3 signs - 3 Direction Arrows
Set of 3 signs - 3 Direction Arrows Perfect for the classroom, gym or playground. Made of styrene to last. Easily fits our cone top sign holders.
• 12" high with 8.25" square base
• Made with 100% PVC polyvinyl chloride (contains no phthalates)
• Conical and top of base is one continuous layer
• Brilliant color with UV inhibitors for resistance to fading
• Good visibility under all weather condition
• Wide body design ensures stability
• Able to return to their original shape after impact
• Will not mar floors.
• Use as a traffic cone, or for hundreds of phys ed activities
• Available in 3 sizes
12" high with 8.25" square base
18" high with 10.75" square base
28" high with 14.5" square base
These cones are constructed of brilliant fluorescent orange vinyl. Non-porous, dirt-resistant surface can be easily cleaned. Will not mar floors. Virtually indestructible. Will collapse under pressure then spring back into shape. Easy stacking. Can be used for lane markers, crowd control, obstacle courses, boundary markers, marking danger areas, repair areas and driver training. Available in 6 Sizes.
• Full 180 degree view with no distortion
• Made of polycarbonate
• Anti-scratch coating
• Anti-Fog treated lenses
• Silicone pads for perfect fit.
• Offer great vision and protection.
• Flow-through ventilation design minimizes fogging
• Size: Youth
Full 180 degree view with no distortion. Made of polycarbonate. Anti-scratch coating, fog-free lenses. Silicone pads for perfect fit. Offer great vision and protection. Unique flow-through ventilation design minimizes fogging.
Neodymium (NdFeB) is the most powerful magnet material in the world. Neodymium is classified as an element in the lanthanides section of the Periodic Table. These are the super strong magnets you have heard about that can attract through your hand.
Automatically turns on at 30 degrees, 60 degrees, or 90 degrees angles. Never needs calibration. 3 second update. Range: -50 degrees to 150 degrees Celsius