Electricity

Small Electric Motor (round shape)
Our most popular electric motor.  Excellent quality, low torque, silent operation.   Battery operated (batteries not included), suitable for powering small cars or other moving models, 0.5 to 3 volts DC (single or double battery operation: AA , C or D cells).  Convenient, sturdy leads, standard shaft diameter.  Fits into ELEC.23, motor mounting clip.  Ideal for running low voltage solar powered models.
ELEC.13   $4.95 each

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Motor Shaft Pulley
Just the size to fit on the drive shaft of ELEC.13 and ELEC.45.  This wee bit makes it easy to transfer the rotational energy of the motor shaft to another pulley or wheel via a rubber band.
ELEC.21   $1.00 each

Small Electric Motor, round, with motor shaft pulley
This consists of one item ELEC.13 plus one item ELEC.21.  Highly recommended for battery-operated cars, in tandem with PULL.07 on the car axle to form a two-pulley plus elastic band "power transfer" arrangement, similar to a fan belt system in a regular automobile.
ELEC.22   $5.95 each

Motor Mounting Clip
Plastic mounting clip to securely attach the round motors (items ELEC.22, ELEC.13 and ELEC.45) to a flat surface.  Self-adhesive base.
ELEC.23   $1.50 each

Alligator Clips
(Clips only, no wire!) Non-insulated metal spring-loaded clips for electrical connections.  With these and some plain copper wire, you can make your own custom-length Jumper Clip Wires.
ELEC.02   1.25" length, single   $0.50 each
ELEC.18
  1.25" length, package of 10   $3.95/pkg
ELEC.27
  2" length, single   $0.75 each
ELEC.28
  2" length, package of 10   $6.95/pkg

Jumper Clip Wire
Easy and elegant electrical circuits!  Also known as Alligator Clip Wire.  Not to be confused with plain old ordinary Alligator Clips (above).  Insulated copper wire (18" long) with an insulated alligator clip on each end.
ELEC.26   package of 10   $8.95/pkg
ELEC.30
   single   $1.00 each

Copper Wire, solid
Solid conductor wire, copper with vinyl coating. Just what you need to complete experimental electrical circuits.  The 22 gauge wire is also known as "bell wire" or "hook up wire".  The 18 gauge wire is thicker and more stiff, and some folks find it easier to work with.  Note: The copper conductor of this wire may or may not be coated with a thin layer of tin (depends on the manufacturer/supplier).  This is to make soldering easier, and does not affect the conductivity of the wire, only the colour of the actual metal conductor.  (This wire does not have to be soldered, it can be used as is.)
ELEC.16   22 gauge (pretty thin)  $0.25/foot
ELEC.24
  18 gauge (thicker)  $0.25/foot
ELEC.25
  18 gauge (10 metre coil)   $5.00/roll

Nickel-Chromium Wire (Ni-Chrome Wire)
Used to perform resistance experiments with electricity.  A short piece of this wire gets REALLY hot when connected to a circuit, even with only one single D cell.  (Warning: Can cause burns if used improperly - Believe me, I know! Fire hazard!)   Here's an experiment: Using the proper safety precautions, try to get it to actually glow, like the filament in a light bulb.  This material is bare wire only, with no coating.  Priced per metre, packaged in one metre lengths, because that is how most teachers request it.  (It is also much easier to handle in these short lengths - up to one metre.  Longer lengths tend to tangle and kink too easily.)  If you require a continuous piece of ni-chrome wire greater than 1 metre in length, please indicate the full length you wish and be sure to mention that you want it in one continuous piece.  Otherwise, it is normally packaged in 1 metre lengths.
ELEC.76   22 gauge   $1.00/metre
ELEC.71   32 gauge   $1.00/metre

Magnet Wire
Spool of 400 feet 32 gauge solid conductor copper wire, enamel coated.  Excellent for making electromagnets with a nail and a battery, or for winding your own armatures to make working model electrical motors. This stuff is really thin, and difficult to handle if you take it off the spool.  NOT for everyday classroom circuit wiring. 
ELEC.59   $5.95/spool

Contact or Toggle Switch ("Knife Switch") (blue base)
An economy switch designed for low-voltage circuit applications.  Used as is, it is designed for applications that require continuous flow of current once switch is closed (like a typical wall switch).  Simple bending upwards of the contact "handle" makes this into a push switch for applications that require momentary completion of circuits (like a doorbell).  Made from durable moulded plastic with metal Fahnestock clips for wire attachments. 
ELEC.04   $1.50 each

Classic Knife Switches
These are the style of electrical switch that is popular with model train enthusiasts and in Dr. Frankenstein's laboratory.  Rectangular plastic bases.  The ones with posts provide an easier connection when using plain stripped wire ends, as the connection is simply a finger-tightened knob and does not require any tools.  The ones without posts usually require a screwdriver to make connections with bared wire, but either can be used with Jumper Clip Wire.  Single Throw just means simple on and off positions.   Double Throw means you can create "Circuit 1 - Off position - Circuit 2" arrangements.  I'm not sure what special applications you would use the "Double Pole Double Throw" one for, but it looks cool. 
ELEC.96   Switch, "classic" knife switch, SPST (single pole single throw) with posts    $4.95 each
ELEC.97   Switch, "classic" knife switch, SPDT (single pole double throw)                   $4.95 each
ELEC.98   Switch, "classic" knife switch, SPDT (single pole double throw) with posts  $4.95 each
ELEC.99   Switch, "classic" knife switch, DPDT (double pole double throw)                 $5.95 each

Contact Key / Telegraph Key
Also known as a Tapping Key, as in tapping out Morse Code.  Can also be used as a simple momentary on/off switch for lights, buzzers, etc.  Mounted on a bakelite base, easy screw and post attachments for wires.
ELEC.54   $6.95 each

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Mini Light Bulb, screw base
Also known as mini electric lamps, or lamp bulbs.  The 1.5 volt ones are likely to burn out if attached to more than 1 battery.  1.5 and 2.5 volt work on one battery (AA, C or D cell).  The 2.5 volt ones are the most popular, as they will work with either 1 or 2 batteries.  The 3.5 - 3.8 volt bulbs will only feebly work with one battery, as they are designed to have more voltage applied.  The 6 volt bulbs are designed for use with the large 6 volt square or rectangular lantern-type batteries.   All will fit screw base bulb holders below (ELEC.15, ELEC.83 and ELEC.94).
ELEC.50   1.5 volt, single bulb   $1.50 each
ELEC.51
  1.5 volt, set of 10   $12.95/set
ELEC.14  
2.5 volt, single bulb   $1.50 each
ELEC.29  
2.5 volt, set of 10   $12.95/set
ELEC.39
   3.5 - 3.8 volt, single bulb   $1.50 each
ELEC.40
   3.5 - 3.8 volt, set of 10   $12.95/set
ELEC.43
   6 volt, single bulb   $1.50 each
ELEC.44
   6 volt, set of 10   $12.95/set

Mini Bulb Sockets/Holders
Screw base for Mini Light Bulbs (above).  ELEC.15 is small metal socket only, with no plastic base.  ELEC.83 has the black (or white) plastic base style similar to a miniature version of the bulb holder you may have on the ceiling of your basement or garage.   ELEC.94 comes with Fahnestock clips and a flat blue plastic base (similar style to the blue base switches ELEC.03 & ELEC.04 - see above).
ELEC.15   metal socket only - no "base"   $1.00 each
ELEC.83
   "Classic" bulb holder  $1.50 each (Usually either black or white plastic. Sorry, no colour choice.  It depends on what our supplier sends us.)
ELEC.94
   blue base  $1.50 each

Mini DC Buzzer
Designed for battery operation, works with as little as 1.5 volts DC (single AA, C or D cell).  We have customers who purchase these to make a "game show" set up for a panel of students to answer questions.  If the buzzer does not work when you hook it up, try reversing the battery connections, as the polarity must be correct.
ELEC.05  $5.95 each

Battery Holders
All are easily connected to circuits using alligator or jumper clip wire, or if supplied with +/- wire leads attached, use the small portion of already-exposed metal at the wire tips to make your connetions.  Stripping of the plastic coating to expose more metal (supposedly for a "better connection") is not recommended, as the wire is fairly thin and can easily be cut by mistake.  
ELEC.32   9V snap clip with wire leads   $0.50 each  
                  Note: most of our products are NOT designed to be used with 9V batteries.
ELEC.78
   Holds 2 AA batteries, +/- wires attached   $1.95 each
ELEC.101
   Holds 1 C cell, +/- wires attached   $1.95 each
ELE
C.102   Holds 2 C cells, +/- wires attached   $2.45 each
ELEC.84
  Holds 1 D cell, +/- wires attached   $1.95 each
ELEC.89  
Battery Holder for D cell, blue plastic, multiples can be arranged as series or parallel connections   $2.95 each

Batteries
We have AA, C and D cell batteries available.  1.5 volts each.
BATT.04   single AA cell   $0.50 each
BATT.06   single C cell   $1.00 each
BATT.02   single D cell   $1.00 each

Electrode Elements
Great for science fair projects.  Flat strips of metal except for ELEC.11.   Size will vary among different suppliers, but generally at least 4 inches long.   Used to make "wet cell" (voltaic cell), OR use them to make your own fruit-powered clock!
ELEC.06   Nickel electrode element                      $7.00 each
ELEC.07
  Aluminum electrode element                $3.00 each
ELEC.08
  Iron electrode element                         $3.00 each
ELEC.09
   Lead electrode element                         $3.00 each
ELEC.10
  Copper electrode element                    $3.00 each
ELEC.11
   Carbon electrode element (round)         $3.00 each
ELEC.11a 
Carbon electrode element (bar shape)  $6.00 each (5" long, 1" wide, 1/4" thick)
ELEC.12
  Zinc electrode element                          $3.00 each
ELEC.47
   Brass electrode element                       $3.00 each
ELEC.79
   Tin electrode element                            $7.00 each (nearly pure tin metal, not tin plated stuff)
ELEC.91
   Bronze electrode element                     $7.00 each
ELEC.92  
Stainless Steel electrode element           $6.00 each
ELEC.93  
Magnesium electrode element              $6.00 each

Ebonite Rods
Rub with different types of cloth to produce small amounts of static electricity.
ELEC.52   $3.95 each

TOPS Module #19 - Electricity
This book begins with task cards that investigate the nature of like and unlike charges, establishing the reason why current flows through wire.  Students then improvise bulb and battery holders and build a variety of different switches.  They’ll then configure them in parallel and series arrangements, using Ohm’s Law to predict how the current will flow.  Your class will construct all manner of wonderful inventions: galvanometers, variable resistors, fuses, electroscopes, wet cells, storage cells, ammeters and more.  They’ll even split water and recombine the gasses in a safe mini-explosion (Don't panic, it's just a "pop").  Book of 36 lessons for grades 8 to 12.
TOPS.19   Electricity   $26.95

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TOPS Module #32 - Electricity
Circuits are fun to build.  But poor contact points or loose connections can often make it a frustrating experience, especially for younger students.  Not to worry!   Using no more than paper clips, rubber bands, clothespins and pennies, your students will build bulb holders, battery holders and switches that are virtually goof-proof.  Gone is the tangle of copper wire that must be twisted and untwisted.   It is replaced by flexible, tangle-proof ribbon - aluminum foil backed by masking tape.  Because they are flat, these ribbons can be joined into electrically secure connections with paper clips.  Simple, inexpensive, easy to do - you and your class will love Electricity.  Book of 20 lessons for grades 3 to 8.
TOPS.32   Electricity $26.95

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Toy Motor Kit
Build a working electric DC motor from parts supplied in the kit.  This toy motor illustrates on a small scale the basic components and essential features of electric motors.  This is a challenging project, not really suited for younger students.   Comes with detailed assembly instructions and 8 experiments.  Note that this item, although a working model motor, is unlikely to actually provide any useful rotational power to anything.  (For example, don't plan on installing it in a small battery-operated car, as it is unlikely to be able to run it.)  Requires 1 AA battery (not included).  Technically for ages 12 and up, but I think it is challenging enough to be classified for ages 14 and up.
ELEC.56   $8.95 each

World's Simplest Motor Kit
Easy and fun to build, for ages 8 and up.  Requires one D cell battery.  Uses a small permanent disk magnet (included).  This small model motor actually works, but it is not strong enough to power anything.  Provides a good model of how a DC motor works.  Comes with instructions.  
ELEC.104   $7.95 each

Basic Battery Car Kit
Build a simple battery-operated car that will scoot across the floor under its own power.  Not much to look at, as it is basically a flat piece of plastic with wheels, a motor and a power source.  But most of the parts can be easily disassembled to be used to create many other battery-powered units.
KITT.25   $17.95 each

WT_batterycar.jpg (2396 bytes)         See some examples of Battery-Powered Vehicles made by Calgary students.

 TEACHERS!  We can design custom electrical vehicle kits to fit your budget.  In the Calgary area, we can also do a low-cost ($20.00 + GST) minimum 90 minute student workshop on simple electrical circuits and building a battery operated vehicle.  Call for bookings.  No obligation to purchase materials from Science Is..., but please allow us to distribute parts lists for the use of your students.  Most teachers find this quite useful, as students often complain about not being able to locate the parts needed for the project.  If they decide to purchase materials from Science Is... through the school workshop, we will pack each student’s order individually & we offer FREE delivery (within Calgary city limits) to the school to fit your schedule.

Radiometer
This has got to be the coolest science toy around!  A clear glass bulb, partially evacuated, contains 4 vanes or wings balanced on a virtually frictionless pin bearing.   The vanes are black on one side, white on the other.  When placed in sunlight or under a bright incandescent lamp, the vanes will spin around.  The brighter the light, the faster the vanes will spin.  Very fragile, for ages 12+.
SOLR.08   $19.95 each

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