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Lampboard w/ 3 Lamps
Lampboard w/ 3 Lamps
15934

For series and parallel experiments. Mounted on strong clear acrylic base. 3 lamp holders. Connecting bus bars allow for easy changing from series to parallel. Complete with 3 standard flashlight size lamps. Size: 5" x 10". Bulbs may be purchased separately.
For series and parallel experiments. Mounted on strong clear acrylic base. 3 lamp holders. Connecting bus bars allow for easy changing from series to parallel. Complete with 3 standard flashlight size lamps. Size: 5" x 10". Bulbs may be purchased separately.

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$20.95 Each
Lampboard w/ 5 Lamps - Clearance
Lampboard w/ 5 Lamps - Clearance
11746

Demonstrates difference between series and parallel lighting. Five flashlight bulb sized sockets mounted with binding posts. Bulbs may be purchased separately. See below.
Demonstrates difference between series and parallel lighting. Five flashlight bulb sized sockets mounted with binding posts. Bulbs may be purchased separately. See below.

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$59.95 Each
Land Mass Relief Globe w/ Cross Section
Land Mass Relief Globe w/ Cross Section
15038

This accurate relief model features a view of the earth?s interior and atmosphere in the same scale. The 12-inch diameter plastic globe, mounted in a cradle base, crust, mantle, and inner and outer cores. Used as a relief globe, this White model can be used for many classroom activities. The removable disk also portrays the atmosphere, temp, air densities, distance and problems of space travel. Size 14" x 14".

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$75.00 Each
Large Compass
Large Compass
14949

This magnetic compass is extra large (90mm, 3 1/2" diameter). Comes in a bright colored plastic case with clear plastic top.

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$4.25 Each
Large Electromagnet
Large Electromagnet
16771

Operating on 1.5 to 6 V DC, this electromagnet lifts up to 3.5kg. A current direction indicator is included for the study of the magnetic field. Shipping weight: 1.0 Lbs., dimensions: 6" x 5" x 2.5".

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$21.95 Each
Large Snap-On Cone Sign - CAUTIONLarge Snap-On Cone Sign - CAUTION
Large Snap-On Cone Sign - CAUTION
SF036P

12" Wide x 13 1/4" 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.

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$18.95 Each
Large Snap-On Cone Sign - Crossing Guard (Hi-Viz Reflective)
Large Snap-On Cone Sign - Crossing Guard (Hi-Viz Reflective)
SS636P

12" Wide x 13 1/4" Long Printed on both sides. 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. Has 3M reflective sheeting.

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$56.95 Each
Large Snap-On Cone Sign - KEEP LEFTLarge Snap-On Cone Sign - KEEP LEFT
Large Snap-On Cone Sign - KEEP LEFT
SF045P

12" Wide x 13 1/4" 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.

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$18.95 Each
Large Snap-On Cone Sign - KEEP RIGHTLarge Snap-On Cone Sign - KEEP RIGHT
Large Snap-On Cone Sign - KEEP RIGHT
SF040P

12" Wide x 13 1/4" 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.

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$18.95 Each
Large Snap-On Cone Sign - LANE ClosedLarge Snap-On Cone Sign - LANE Closed
Large Snap-On Cone Sign - LANE Closed
SF039P

12" Wide x 13 1/4" 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.

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$18.95 Each
Large Snap-On Cone Sign - No Left TurnLarge Snap-On Cone Sign - No Left Turn
Large Snap-On Cone Sign - No Left Turn
SF038P

12" Wide x 13 1/4" 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.

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$18.95 Each
Large Snap-On Cone Sign - No Right TurnLarge Snap-On Cone Sign - No Right Turn
Large Snap-On Cone Sign - No Right Turn
SF037P

12" Wide x 13 1/4" 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.

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$18.95 Each
Large Snap-On Cone Sign - School Crossing (Hi-Viz Reflective)
Large Snap-On Cone Sign - School Crossing (Hi-Viz Reflective)
SS637P

12" Wide x 13 1/4" Long Printed on both sides. 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. Has 3M reflective sheeting.

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$30.95 Each
Large Snap-On Cone Sign - SLOW, CHILDREN AT PLAYLarge Snap-On Cone Sign - SLOW, CHILDREN AT PLAY
Large Snap-On Cone Sign - SLOW, CHILDREN AT PLAY
SF032P

12" Wide x 13 1/4" 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.

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$18.95 Each
Large Snap-On Cone Sign - Two-Way ArrowsLarge Snap-On Cone Sign - Two-Way Arrows
Large Snap-On Cone Sign - Two-Way Arrows
SF034P

12" Wide x 13 1/4" 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.

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$18.95 Each
Laws of Motion: Hovercrafts (DVD)
Laws of Motion: Hovercrafts (DVD)
D017

In The Laws of Motion: Hovercrafts, students will learn how to make and use models to investigate the principles behind the laws of motion. As they test and refine their project, students -- and viewers -- are encouraged to make predictions based on experimental evidence as they learn to calculate the effect of forces on the motion of objects. The concepts of Newtonian mechanics are investigated by using clear demonstrations and graphics, and students discover how technological advancements are built on scientific knowledge. Part of the multivolume Science Lab Investigations! DVD Series. Includes a Teacher's Guide.

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$39.95 Each
No Free Shipping
LED Backlit A-Frame Sign - Dry EraseLED Backlit A-Frame Sign - Dry Erase
LED Backlit A-Frame Sign - Dry Erase
SS773D

• Change sign papers in seconds
• Rechargeable magnetic battery
• Dry-erase surface for quick changes
• Rust, fade, and water proof design
• Top handle for easy moving
• IP65 Rating

• Outside Dimensions: 40”H X 24”W x 2.4”D
Sign Paper Size: 16.5"W x 22.5"H
• Weight: 17 lbs.
• Use “DRY-ERASE MARKERS” ONLY!!

Introducing the Stop-Lite Backlit A-Frame Sign — a versatile one-sided lit signage solution designed for both commercial and safety applications. This illuminated draw-erase board features a sleek, backlit panel with a slide-in display area and a magnetic rechargeable battery. It’s ideal for businesses, cafes, and safety personnel. Use it to promote specials or communicate critical safety messages on the go.

Parameters
• Modes: 4 modes
• Working Temperature:  -13°F to 131°F
• Type-C Charging
• Charge Time: 10 hours

Run Time: 
• @ 100% brightness - 10 hours
• 75% - 12 hours
• 50% - 15 hours
• 25% - 23 hours
• Flashing- 24 hours

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$235.00 Each
Lens Cleaner
Lens Cleaner
16538

Cleans optical glass surfaces, leaving a clear non-streaking finish. 2 oz. bottle.
Cleans optical glass surfaces, leaving a clear non-streaking finish. 2 oz. bottle.

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$16.95 Each
Lens Paper
Lens Paper
98655

This soft, absorbent paper cleans lenses and optical elements and are available in booklet and sheet form. Book of 50 sheets 4" x 6" size.
This soft, absorbent paper cleans lenses and optical elements and are available in booklet and sheet form. Book of 50 sheets 4" x 6" size.

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$3.50 Pack
Lenz's Law Demonstration
Lenz's Law Demonstration
16880

An efficient and easy way to demonstrate Faraday's Law and Lenz's Law. To show and teach how a magnet when passed thru the complete loop causes the loop to move and when passed thru the cut loop causes no movement. 6"H x 7"W. 2.25" Diameter loops.

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$11.95 Each
Levitation SetLevitation Set
Levitation Set
13912

Investigate the mysteries of equilibrium, gravity, and magnetism! Make leaning magnets magically balance without touching, and then build your own magnetic levitating train. Includes 5 shorter experiments and 5 longer projects. Includes a helpful guide with activities aligned with Next Generation Science Standards, trouble-shooting tips, and a glossary. Ideal for science fair projects, STEM programs, maker spaces, classroom labs, or at-home fun. For one child or a small group working together. Ages 10+/Grades 5+. Adult participation suggested.

5 BASIC MAGNETISM EXPERIMENTS
Earth as a Magnet, Attraction and Repulsion, What Magnets Attract, Temporary Magnetism, and Magnetic Strength.

5 IN-DEPTH PROJECTS 
Magnetic Pendulum, Magnetic Pendulum Spacing, Balance Gravity and Magnetism, Magnetic Oscillations and Energy, and Levitating Train.

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$33.50 Set
Leyden Jar
Leyden Jar
15931

Learn about static electricity and the function of a dielectric with this device. Two aluminum jars-one with an attached aluminum electrode- and one plastic jar are used to collect the charge. Assembled device is 6" tall and 3 1/4" in diameter.

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$17.95 Each
2 Sizes
Liebig Condenser
Liebig Condenser
15102

These Borosilicate Glass Liebig Condensers find wide usage in the laboratory such as distillation, reflux operations, extraction etc. Sealed inner tube, large capacity of water jacket gives efficient cooling. Sized by effective length. 22 mm diameter.

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From $12.80 Each
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Life-Size Skeleton
Life-Size Skeleton
16170

• Plastic life size for teaching and demonstration purposes
• The arms and legs are removable for individual study
• Skull (32 teeth) opens up and the jaw is hinged
• Mounted with a metal rod which extends from the sacrum
• Complete with a mobile stand, and dust cover


Plastic life size for teaching and demonstration purposes. The arms and legs are removable for individual study. Skull (32 teeth) opens up and the jaw is hinged. Mounted with a metal rod which extends from the sacrum. Complete with a mobile stand, and dust cover.

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$321.95 Each