This set contains 7 different lenses and prisms to demonstrate a wide range of optical principles. The frosted surfaces are also excellent for revealing the path of light as it passes through the lens. They are a great tool for teaching students about optics.
• Comes in cardboard box with a Teacher’s Guide
• 2.75″ (70mm) L x 1″ (25 mm) thick

Item 3358-20

In Stock

Learn about the triboelectric series, friction, induction and conduction! With this set, students can develop a model of what is happening to the electrons around the atoms in a conductor versus an insulator. Investigate the nature of the mobile subatomic particle called the electron and the forces created when an object has an unequal number of positive and negative charges. The guide included with this set encourages critical thinking in combining elements from Science, Technology, Engineering and Mathematics (STEM), and can be used to teach with Common Core and National Next Generation Science Standards.
• Comes with a Teacher’s Guide
Includes:
• 1 hollow glass rod
• 1 lucite rod
• 2 hard rubber rods
• 1 flannel pad
• 1 silk pad
• 1 fur pad

Item 3128-07

In Stock

Use the Calorimeter for determining specific heat, heat of fusion, and heat of vaporization. It consists of 2 polished spun aluminum vessels, i.e. an inner calorimeter, 2.56″ (65 mm) Dia. x 3.15″ (80 mm) H, and an outer calorimeter, 3.94″ (100 mm) Dia. x 5.51″ (140 mm) H. The lid has 2 holes for the thermometer and the stirrer. The thermometer is not included.
• Comes with a Teacher’s Guide
Includes:
• Plastic ring for seating the inner calorimeter
• Stirrer
• Plastic lid for outer vessel

Item 3235-00

In Stock

This microscope is ideal for closer inspection of everything from dissection to industrial needs. It can be hand-held or mounted, giving the user ultimate flexibility. Its easy 1-touch focus wheel provides simple control of the magnifying power. Still images and videos can be caputred with the press of a button. On top of our 30-day satisfaction warranty, we offer a 90-day limited warranty for manufacturer defects.
Accessories:
• A1-Alloy Stand
• Safety Cover
• User Guide
• Teacher’s Guide
• Gift Box
Specifications:
• Image sensor: 2 megapixels (interpolated to 5M)
• Video capture resolution: 2560×2048 (5M), 2000×1600, 1600×1280 (2M), 1280×1024, 1024×940, 1024×768, 800×600, 640×480, 352×288, 320×240, 160×120
• Still image capture resolution: 2560×2048 (5M), 2000×1600, 1600×1280 (2M), 1280×1024, 1024×940, 1024×768, 800×600, 640×480, 352×288, 320×240, 160×120
• Focus range: manual focus from 10 mm to 500 mm
• Frame rate: Max 30 f/s under 600 lx brightness
• Magnification ratio: 20X to 200X
• Video format: AVI format
• Photo format: JPEG or BMP
• Light source: 8 (adjustable by control wheel)
• PC interface: USB 2.0
• Operation system: Windows 2000/XP/Vista, Windows 7, Mac 10.5 and above
• OSD language: English, German, Spanish, Korean, French, Russian
• Power source: 5 V DC from USB port
• Bundle software: MicroCapture, with measurement and calibration function
• Size/Dimension: 110 mm (4-1/3″) L x 33 mm (1-1/3″) Dia. • We recommend using the Camera Google Chrome extension published by Google: Camera – Chrome Web Store (google.com)

Item 1315-00

In Stock

Made with micron-sized, iron-based particles distributed throughout, the astonishing, moldable Magnetic Thinking Putty takes on the properties of a magnet itself when placed in close contact with the included magnet. It’s perfect for science-loving kids, or for any adult that loves intelligent play! Use the magnet to do the “snake charmer” trick. Or leave the magnet on your ball of putty and watch it completely engulf the magnet in minutes! What can you do with it? The possibilities are endless!
• Comes with a Teacher’s Guide
• Putty (91 g/3.21 oz) comes with a Neodymium cube magnet in storage tin

Item 3196-00

In Stock

If you’ve ever stood between 2 mirrors facing each other, like in a hair salon, you’re familiar with the seemingly endless line of images seen in the mirrors. The Infinity Mirror recreates this effect. It is just like an ordinary mirror when the built-in mirror lights are off, and the room lights are on. However, with the mirror lights turned on in a darkened room, the effects change dramatically! This is a highly effective way to teach the law of reflection and capture students’ excitement about light and optics.
• Comes with a Teacher’s Guide
• See the product demonstration video on YouTube
• Comes with a fixed power cord with switch, approx. 5 ft in length

Item 3361-00

In Stock

This set consists of 4 glass capillary tubes of different inner diameters rising up from a larger tube reservoir. Use this set-up to demonstrate and help students draw conclusions about capillary action.
• Comes with a Teacher’s Guide
• Comes mounted on a its own stand
• Tubes approx. 150 mm (6″) H

Item 3447-00

In Stock

Use the Spectroscope for quantitative examination of the spectral composition of white light and radiant bodies. It is comprised of a metal draw-out tube of 0.75″ (20 mm) Dia. with an adjustable slit at one end. The light passing through this slit falls on the prism elements and breaks up into a spectrum. This can be viewed through an eyepiece at the other end of the tube.
• Comes with a Teacher’s Guide
• Supplied in a velvet-lined wooden box
• Fully drawn out 5″ (130 mm) L

Item 3372-00

In Stock

This apparatus consists of 2 brass rods with insulated handles. One of the rods has a ring and the other has a ball of approximate diameter 1″ (25 mm), attached at the end. The brass ball passes through the ring when both are at room temperature, but when the ball is heated it expands and cannot pass through the ring, demonstrating the expansion and contraction of metals.
• Comes with a Teacher’s Guide

Item 3226-00

In Stock

You can use this meter as a voltmeter and as an ammeter, simply by sliding the scale. It is very convenient for demonstrative applications.
• Comes with a Teacher’s Guide
• 100 uA – 5 A
• 100 mV – 50 V

Item 3232-30

In Stock

This magnet is a model of the lifting magnet used in industry, such as for a scrap metal lifter. It consists of 2 plastic bobbins wound with enameled copper wire and mounted on each arm of a soft iron U-core. Each of the bobbins is fitted with 2 0.16″ (4 mm) socket binding posts.
• Comes with Teacher’s Guide

Item 3165-01

In Stock

Use this device to demonstrate the phenomenon of thermal convection in liquids caused by temperature variation. It consists of a rectangular-shaped borosilicate glass tube, 6″ (150 mm) W x 8.25″ (150 mm) H, with a funnel-shaped opening at the top for filling liquids. When this tube is filled with water and heated at 1 corner after adding a dye, potassium permanganate crystals, saw dust, or aluminum powder, the movement of colors or particles illustrates the formation of convection currents.
• Comes with a Teacher’s Guide and reproducible Student Handout

Item 3205-00

In Stock

This item is also known as a Convection Box or a Ventilation Apparatus. Use it for demonstrating the phenomenon of convection in air and the principle of room ventilation. It consists of an enameled metal box 4″ (100 mm) W x 8″ (200 mm) L x 4″ (100 mm) H, having a sliding glass door and 2 glass chimneys. When the included tea light candle is placed under 1 chimney and a smoldering tape or parchment paper is placed underneath the other chimney, the flow pattern of smoke dramatically illustrates the formation of convection currents. Tape or parchment paper are not supplied.
• Comes with a Teacher’s Guide and reproducible Student Handout
Includes:
• 2 candles

Item 3210-01

In Stock

This heat pack contains a super saturated solution of water and sodium acetate. Snapping the metal disc creates an exothermic chain reaction, causing the solution to crystallize. Heat packs can be recharged back to the liquid state by boiling in water for 10-15 minutes and allowing to slowly cool. Excellent for teaching about chemical reactions and introducing thermodynamics.
• Comes with a Teacher’s Guide
• 100 x 100 mm (4 x 4 in)

Item 3227-02

In Stock

This heat pack contains a super saturated solution of water and sodium acetate. Snapping the metal disc creates an exothermic chain reaction, causing the solution to crystallize. Heat packs can be recharged back to the liquid state by boiling in water for 10-15 minutes and allowing to slowly cool. Excellent for teaching about chemical reactions and introducing thermodynamics.
• Comes with a Teacher’s Guide
• 200 x 200 mm (8 x 8 in)

Item 3227-03

In Stock