sargentwelch.com

Bushnell Digital Imaging Spotting Scope, 15-45X Zoom — $259.95
From mountain peaks to rushing waters and rock filled gorges, you can record every detail of your field expeditions with this powerful spotting scope. Set your scope's sight on any location and view intricate details from a distance. The VGA quality digital image capture then allows you to take photographs of landscapes and geologic discoveries for later download. This scope includes a USB cable, aluminum frame hard case, tripod, and soft carrying case. Field of view: 125' at 1,000 yards with 15X...

TI-1706SV Basic Calculator — $11.00
Well equipped for any calculating need with a giant display and dual power, this solar-powered calculator allows operation even in low light. The color-coded keyboard features extra-large, easy-to-use keys and the change sign key simplifies entry of negative numbers. Protective slide case stores on back when not in use.

Masking Tape — $8.95

Roots — $6.39
Corresponding monocot and dicot structures on the same slide (CS).

Circuit Tester — $4.35
Only 16cm long, including 11cm flexible rubber-covered leads. 90-600 Volts.

Tape Dispenser — $79.69
Features a convenient writing platform which allows both left- and right-handed users to write on the tape before applying it. Accepts 3" ID tape reels up to 1" wide. Dispenser only. For use with Autoclavable Tape.

Spot Lamps, Bulb Type: Incandescent Reflector BR40, Watts: 120 — $19.85
For 120V, medium screw base. Ideal for photometers, cloud chambers, solar panels, andastronomy demonstrations.

The New Solar System Video — $34.00
Visit all the planets in our solar system, their moons, even Halley’s Comet, with supercomputer simulations and enhanced footage from the U.S. Space Program. Fully narrated, in full color, and with additional animated sequences to better explain concepts, this program allows students to view topographic features of the planets, plus experience dramatic events such as solar flares, erupting volcanoes on Io, and a comet striking Jupiter. Duration: 60 minutes.

HUMAN HEART MODEL — $48.00
Dissect this colorful model into two parts to closely examine blood vessels in the heart. Two times larger than life-size, the model clearly reveals the structure of auricles and ventricle on the diaphragm. Model is numbered and comes with key card. Size: 15 x 14 x 17cm.

Hands-On Physical Science Activities for Grades K-6 — $40.59
The second edition of this bestselling book offers compelling activities that help teach students in grades K–6 thinking and reasoning skills along with the basic science concepts of matter, energy, light, sound, electricity, machines, magnetism, and more. Activities follow the discovery/inquiry approach and encourage students to analyze, synthesize, and infer based on their own hands-on experiences. This new edition includes an expanded teacher information section, inquiry-based models and complex...

Compost Thermometer — $26.50
Easy-to-read 1-3/4" dial thermometer is ideal for deep immersions. Stainless steel stem length is 19". Also features: polycarbonate lens, external recalibration and bold markings.

Geranium — $6.99

MOTION DETECTOR — $79.09
The Motion Detector uses ultrasound to measure distance. Ultrasonic pulses are emitted by the Motion Detector, reflected from a target, and then detected by the device. The time it takes for the reflected pulses to return is used to calculate position, velocity, and acceleration. This allows you to study the motion of objects such as a person walking, a ball in free fall, or a cart on a ramp.

Snellen Eye Chart — $14.50
Non-reflecting, matte finish, plastic eye chart features brass eyelets around hanging holes. Designed for 20 foot distance. Completely washable. With green and red color bars. Size: 22" x 11".

Tree of Life Chart — $30.80
Take advantage of this unique pedagogical design. When you place this colorful chart of kingdoms and their phyla on a flat surface, your students can put specimen jars on the appropriate phylum branches. Also suitable for wall display. Size: 40″ x 60″.

Template — $8.30
A general purpose template for both pen and pencil usage. Has risers to eliminate smudging and a 0.5 mm lead allowance. Size: 4-1/2" x 6" x 0.04".

Chameleons — $16.99
Anolis. Easy to maintain terrarium animal. Example of adaptive coloration. Available March–Nov. Package of 3.

Hovercraft — $310.09
Discover the joy of Newton’s laws with this 40″ wide hovercraft. Students can ride on a cushion of air and experience near frictionless motion. Now you can demonstrate action and reaction on a large scale, with no air track needed. Includes hovercraft and instructions for lab activities. Leaf blower, used to operate hovercraft, is sold separately.

Cedarwood Oil — $18.37

Deluxe green Laser Pointer — $155.00
Now the latest diode technology has produced the most reliable, brightest green laser ever, at the lowest price ever. Emitting 532nm light, close to the human eye’s most sensitive wavelength, this Class IIIa 5mW laser pointer’s 1.1mm diameter beam is visible for up to two miles. A top quality instrument, it features a glass lens for superior sharpness and a Sony diode with 3000-5000 hours lifetime. Ideal for diffraction and interference experiments. Includes plush velvet storage case and AAA batteries...

Color Filter Set — $22.00
Students work with a broad assortment of cellophane squares-red, blue, pink, purple, green, orange, and yellow. Also includes amber Lucite and white plexiglass filters, complete with their own stands, and two slotted screens.

Pacific Ocean Map — $18.95
The map is highlighted with a number of labeled features on land and on the ocean floor. The rest of this National Geographic poster includes information on ocean trenches and vents with a pictorial/descriptive key of continental margins, trenches, seamounts, abyssal plains, ridges, and vents, as well as a diagram of the key vents in the world. Size: 32 3.4" x 21 3.4".

Starry Night Enthusiast CD-ROM — $99.95
Designed for anyone with an interest in the night sky, you can see the sky from anywhere on Earth or from any solar system body or location up to 20,000 light years away. As you navigate through space you can view a million different stars, as well as 3 million deep-space objects. You can also instantly identify any constellation, e-mail your latest discoveries to others, or stay current through instant online upgrades. You will also receive the Starry Night Companion, a guide to the night sky using...

Demo Electric Motor — $48.60
Clearly view the inner workings of this motor through the completely clear construction. This model of a simple DC electric motor features three armatures - 2 pole, 3 pole, and 4 pole - all wound with enameled copper wire. A permanent magnetic field is produced by a removable bar magnet. A disc-type commutotor is incorporated and external connection to the phosphor-bronze brushes is by means of a pair of 4 mm sockets. Operates on 4.5-9 VDC.

Cellulose — $14.00

Pyrex® Wide-Mouth Erlenmeyer Flasks, 500mL, Pkg. of 6 — $37.25
These heavy-duty flasks provide both mechanical strength and thermal shock resistance. White enamel graduations are accurate to ±5%. Each also features an extra-large marking spot.

Sports Science Projects: The Physics of Balls in Motion — $35.20
A clever way to interest students in physics concepts, this book shows the relationships between laws of physics and performance in sports. Fun demonstrations examine the design of various balls and answer the questions, Why does a tennis ball have fuzz?, What is the best angle for launching a basketball when far from the hoop?, How does the Conservation of Angular Momentum Law apply to football pass?, and Will a superball always bounce back to its starting height? Includes follow-up ideas for science...

Alternative Energy Clever Catch Ball — $13.95
A Fun Alternative to Class QuizzesList three ways to conserve energy at home. What is another name for a solar cell? Students answer these questions and more as they toss the 24" Clever Catch ball around the classroom. A creative way to reinforce lessons, this ball allows students to have fun while they learn. Play continues as students catch the ball, answering the question found under their left thumb. Answers and directions for variations of play are included.

THERMOMETER ONLY — $44.00
For replacement of either wet or dry bulb thermometer in Sling Psychrometer. With projection at top to fit positioning hole.

Venus’ Flytrap — $9.29
Dionea muscipula. Trap-like leaves react quickly to stimuli and trap insects.

Tornado Demonstration Model — $299.95
This Demonstration Will Blow You AwayBring the power of a tornado right into your own classroom with this demonstration model. Your students will be amazed as you use this device to help you explain how tornados form, what weather conditions are necessary, and how they are influenced by outside forces. It includes a teacher’s guide with seven experiments. 110 VAC. Size: 24"H x 14" dia.

Suspension Clamp — $12.50
Use to suspend a thermometer over a hot plate, or to suspend specific heat specimens. Clamp holds items at a distance of 4-1/2" from the support rod. Aluminum hook swivels and locks at any angle.

Remagnetizer — $69.95
This unique, non-electric product saves the cost of buying expensive horseshoe and bar magnets every year because they have lost their magnetism. Simply match up opposite poles with the remagnetizer and your magnets will be rejuvenated by two permanent neodyrium magnets. This easy-to-use device mounts easily to a table or wall and has magnetic poles marked North and South. Size: 10cm x 12.5cm x 5cm high.

Slow Rollers — $65.99
In this activity students design simple devices to roll as slowly as possible down an inclined meter stick. The students receive a supply of short light rods of different diameters and heavy metal discs, also of differing inside and outside diameters. They construct “rollers” and conduct experiments to determine how shaft diameter, mass, and moment of inertia affect their speed after rolling down the inclined meter stick. Then students are shown how to predict the speed using Newton’s Laws. Set includes...

LUSTER COLLECTION — $26.00
Luster is the physical property of minerals that describes the appearance of reflected light from fresh surfaces. This set contains 12 samples representing the following types of luster: metallic, adamantine, vitreous, resinous, greasy, pearly, silky, splendent, shining, glistening, submetallic, and dull.

Lens Cleaning Towelettes — $13.35
In the lab, your safety goggles are going to get messy. These towelettes clean them so you can try again. For all industrial, safety, and personal eyewear lenses. Box of 100.

Map of the Universe Poster — $24.95
A spectacular view of the cosmos, highlighting major stars and constellations. Turn out the lights, and the stars and constellations glow dramatically in the dark, A 16-page guidebook explains the chart’s symbols and describes the constellations and zodiac. Size: 36" x 36".

Equal Mass Set — $10.95
Because these five cylinders of varying length all have the same mass, it’s easy to conduct experiments that demonstrate the inverse relationship between density and length. The copper, nylon, polyvinyl chloride and polyethylene specimens are all 12mm in diameter with 15g mass. Lengths range from 15 to 100mm. Instructions are included.

Four Cube Density Set — $9.95
Created for extensive use in all your density experiments, this set of 1″ cubes includes one cube each of acrylic, pine, nylon, and aluminum, all packaged in a poly bag.

Biology Is Outdoors! A Comprehensive Resource for Studying School Environments — $33.50
Take your class on a field trip... to the schoolyard. Adaptable for any climate and geographic location, the activities on the reproducible pages of this book guide students as they study their immediate natural environment. Sections for teachers include discussion questions. Spiral bound, 162 pages.

Pyrex® Culture Tubes with Cap, OD x L, mm: 16 x 100, Cap., mL: 11, Pkg. of 144 — $251.00
Corning 9825 Screw-top culture tubes that can be autoclaved. Caps have glued-in white rubber liner and tubes have large marking spot.

Pyrex® Standard Griffin, Low Form Beakers, Capacity: 800 mL, Pkg. of 6 — $41.90
Corning 1000 Manufactured with spout and uniform wall thickness for maximum durability. Larger sizes (over 250 mL) have double graduated measuring scale. All have large marking spot. 10 mL size is not graduated.

Round, Amber Narrow Mouth Bottles, Capacity: 120 mL, Pkg. of 24 — $44.95
Round, Amber Narrow Mouth Bottles, Capacity: 120 mL, Pkg. of 24

Pyrex® Erlenmeyer Flasks, 25mL, Pkg. of 12 — $56.48

VWR Volumetric Flasks — Class B, Cap., mL: 1000, Tolerance, ±mL: 0.60, Pkg. of 6 — $212.20
Our new high-quality borosilicate volumetric flasks meet ASTM standards and are a great value. Class B with capacity tolerances twice those specified for Class A volumetric work. The necks are tooled to fit the included snap-caps. With graduation line for accurate measurements.

PAGE Gel Loading Tips, 200 µL 576/PK — $65.25
Complete any biotech experiment or activity in the Biotechnology: Science for the New Millennium curriculum with confidence using Sargent-Welch supplies. You'll find the materials and consumables that are specific to the curriculum here.

VWR Portable Electronic Balance, 500g x 0.1g — $165.00
These economical balances feature a stackable design with shipping load cell lock and overload protection up to 200 lbs. Each is designed with a flip top draftshield to access the chamber through an innovative center opening. The flip top also acts as a protective stack cover in addition to providing complete draft protection. The top cover center opening also functions as a sample tray when removed and turned upside down. Features include programmable auto-shut- off, security bracket, over/under...

VWR Volumetric Flasks — Class A, Cap., mL: 2000 — $56.45
Our high-quality borosilicate volumetric flasks meet ASTM standards at a great value. The necks are tooled to fit the included snap-caps. With graduation line for accurate measurements.

Calcium Nitrate 4-Hydrate, Laboratory, QuickPrep Capsules, Each makes 1 L of 0.1 M solution, Pkg. of 1 — $6.00
Calcium Nitrate 4-Hydrate, Laboratory, QuickPrep Capsules, Each makes 1 L of 0.1 M solution, Pkg. of 1

Insect Mounting Pins, 0 Pkg. of 100 — $9.95
Black with yellow heads and sharp points. All sizes are 11/2" L. Sizes 2, 3 and 4 are for most insects; sizes 5 and 6 are for heavy bodied ones; and 00, 0 and 1 are for small ones.

Nickel Nitrate 6-Hydrate, Laboratory, Crystal, 500 g Bottle — $70.00
Nickel Nitrate 6-Hydrate, Laboratory, Crystal, 500 g Bottle

Aluminum Potassium Sulfate 12-Hydrate, Reagent, Granular, 500 g Bottle — $19.00
Aluminum Potassium Sulfate 12-Hydrate, Reagent, Granular, 500 g Bottle

Interference Model — $84.70
Concentric circles drawn on two transparent plastic plates, 9 x 9cm and 9 x 12cm, represent wavefronts. If you move the centers of the two plates relative to one another, dramatic interference patterns appear. Model is perfect for display on an overhead projector.

Force Table Pulley with Clamp — $39.09
Heavy duty metal clamp attaches securely to tabletops from 10 to 28mm thick, and pulley wheel runs smoothly on ball bearings. Ideal for composition of forces and inclined plane experiments. Fits Cenco force tables.

Potassium Sulfate, Reagent, Granular, 100 g Bottle — $6.99
Special promotions and discounts do not apply to this item.

Reading River Sediments: A Simulated Mineral Exploration Activity — $134.50
What lies along the basin of a river? Series of “hands-on” activities allow students to use key earth science concepts by conducting a mineral exploration of river sediments. Students learn about topographic maps, various rock types, erosion and river dynamics. Kit includes simulated river sediments, detailed topographic maps of a river system in a mountainous region, testing solutions and apparatus. Each sample site can be tested a minimum of 50 individual times. Includes student worksheets.

Earth at Night Poster — $14.50
This poster shows the glow of city lights and various agricultural, gas, and oil fires from satellite images of the Earth at night with a key that identifies the various sources of artificial light.

Kidney — $20.35
Large drawing is an anterior view of both kidneys, with the right kidney dissected in a cross-section. Insets include: nephron unit, urinary organs and operation of an artificial kidney.

Bibulous Paper — $2.95
Highly-absorbent paper for drying slides and cover slips, absorbing excess stain, and general microscopy. Booklet of fifty 4" x 6" sheets.

ScholAR Determination of the Molecular Mass of a Liquid Lab Activity — $37.95
The Ideal Gas Law can be used to determine the molecular mass of a liquid by converting the liquid to a gas and measuring its volume, temperature, and pressure. The gas law will then allow the calculation of the number of moles of the chemical. The molecular mass can be determined by condensing the gas back to the liquid form and measuring the mass. This experiment can be completed in 45 minutes and comes with enough materials for 15 setups.

Methyl Orange, Sodium Salt, Reagent, Powder, 25 g Bottle — $11.50
Methyl Orange, Sodium Salt, Reagent, Powder, 25 g Bottle

Metric Adhesive Tape — $19.99
Adhesive Back for Easy AttachmentNumbered every centimeter, with 1mm graduations; repeats every 100cm. Roll measures 1000cm long and 1.27cm wide.

Pocket Anemometer — $52.50
Choose Between Multiple Units for Wind Speed ReadingsThe small size of this handheld anemometer is contrasted by its large number of measurement capabilities. Wind speed is displayed in either knots, meters, or kilometers; per second or per hour. Current temperature and wind chill, in Celsius or Fahrenheit are also featured. In addition, the Beaufort Scale is displayed in an easy to read bar graph. A lanyard and weather resistant case are included for convenient transport. Wind speed range: 0.4 ...

Knop’s Solution — $9.63
Knop’s Solution, Laboratory, Solution, 500 mL Bottle

Mag Chips — $35.90
They are 2mm-long pieces of zinc-plated iron wire. When exposed to a magnetic field, they align, exhibiting the field lines clearly. 50g container.

Aurintricarboxylic Acid — $22.06

Starch Indicator Solution — $8.07
Starch Indicator Solution, Laboratory, 1% (Aqueous), 1 L Bottle

Map Projection Model — $127.00
How a flat map is used to depict the spherical surface of the earth is shown by means of map projection model. It also demonstrates why and where distortion occurs on a flat map and why different projections are used. Three fundamental projections are shown – cylindrical, conical and plane – on three transparent plastic maps, fitted on a special 8" diameter world globe included. Cylindrical world map and conical northern hemisphere maps can be unsnapped and laid flat. Plane northern hemisphere map...

Support System for Optical Bench — $164.00

2MHz Function Generator — $325.00
* Frequency range 0.2Hz to 2MHz in 7 steps. * Dial accuracy: ±5%. * Separate adjustments for output level, DC effect, CMOS level and duty cycle. * VCG input for sweep operation (0-10VDC input causes 100:1 frequency change). * 20dB step attenuator. * Output impedance: 50Ω±10%.

DEMONSTRATION BIMETALLIC STRIP — $23.10
A 12V halogen bulb is mounted below this metallic strip to heat it. Once heated, the strip bends upward and breaks the circuit. Size: 13 x 8 x 3cm.

Calmagite — $35.96

Potassium Persulfate — $16.63
Potassium Persulfate, Reagent, Crystal, 100 g Bottle

Acetylsalicylic Acid — $9.29
Acetylsalicylic Acid, Laboratory, Granular, 100 g Bottle

Ken-A-Vision Comprehensive Scope, T-19011C, Monocular — $399.00
*Monocular head. *4X, 10X, 40XR DIN objectives. *Plain stage with stage clips. *Six holed disc diaphragm. *Binocular head. *4X, 10X, 40XR DIN. *Plain stage with stage clips. *Six holed disc diaphragm. *Seidentopf binocular head. *4X, 10X, 40XR, 100XR (oil immersion) DIN objectives. *Coaxial mechanical stage. *Abbe 1.25 NA condenser.

The Moon Phaser — Lunar Cycle Model — $85.75
A striking visual re-creation of the lunar cycle, this model invites student involvement. The hands-on manipulation of this model is made possible by an included extension handle for large group demonstrations. An instructional video outlines uses of the phaser and a demo. Includes a teacher’s guide with activities, assembly instructions, and student copymasters. Requires two AA batteries, included.

Fiber Optics Kit — $63.78
Students can learn fiber optics easily by experimenting and building projects. No prior is experience needed. A practical text includes fundamentals, experiments and various projects including, Getting Acquainted with a Light Pipe, AM Fiber Optic Receiver and Fiber Optic Light-Pen Cable. Includes all fiber optic components, connectors and cables needed.

Earthbox Middle School Site Curriculum — $214.50
Benefits of the EarthBox Educational Products are multi-fold. The easy-to-use, high yield growing system brings science to life and encourages students to learn about horticulture, agriscience, entrepreneurship, and nutrition as they simultaneously find ways to give back to the community, promote conservation, and support sustainable food production. The scientifically engineered container garden system is ideal for students of diverse ages, ability levels, and backgrounds „ the science and skills...

Secrets of Light Activity Posters — $72.00
Scientists claim that our Sun is comprised primarily of the gases hydrogen and helium. The question arises, how do scientists know this when they cannot approach the Sun to test it? By analyzing the light that reaches us from the Sun and other stars, we are able to learn what elements the Sun is comprised of, what is the Sun’s surface temperature; and whether the Sun is moving towards us or away from us. In this journey, students will discover three great secrets of light and how light can be used...

Blood Typing Kit — $59.95
Students will determine their own blood type – A, B, AB or O. Kit is designed for 50 students and contains antiserum(s) plus sterile lancets and alcohol pads, color-coded mixing spatulas, typing cards, individual worksheets and instructions with background material. Typing is done on self-adhesive cards which can be kept for a permanent record. Liquid serums require no refrigeration. Serums are for educational purposes only. Requires blood samples.

Ethylenediamine — $60.57

ScholAR Beer-Lambert Law Lab Activity — $35.50
With your spectrophotometer and the materials provided in this lab activity, students can demonstrate Beer-Lambert’s Law, which states that the amount of light a solution absorbs can be calculated using the molar absorptivity, the length of the light path, and the concentration. In this experiment, which can be completed in one hour, students prepare five solutions containing iron in different concentrations. Using a colorimetric reagent for iron, they can determine the concentration of each empirically...

ScholAR Grignard Synthesis of Benzoic Acid Lab Activity — $65.95
When a solution of an alkyl halide in an anhydrous solvent and an anoxic environment is allowed to stand over metallic magnesium, a vigorous reaction occurs that results in the formation of the Grignard reagent. Once the Grignard reagent is prepared it can be used to prepare the target compound, in this case a carboxylic acid. This experiment can be completed in 90 minutes and comes with enough materials for 15 setups. The Pyrex Micro-Organic Chemistry set or Combo-Still is required, available separately...

CHLORITE, Greenish-black, schistose, Student Specimens, Pkg. of 10 — $9.96
We’ve gone to great lengths to source and upgrade our mineral specimens. To provide you with the highest quality specimen materials available today, all our specimens are carefully hand selected and packaged to ensure consistency and reliability. Chose from our popular Student Specimens sold in packages of ten (average size: 1” x 1” to 1” x 2”), or our larger Lab Specimens (average size: 2” x 3” to 3” x 4”) sold individually. Student specimens are ideal for classroom use, while the larger lab specimens...

Chemistry: The Complete Course Videos, VHS Stoichiometry Problems — $40.00
Show students that the reasoning skills they use naturally in their everyday lives can also be used to solve chemistry problems. By focusing on understanding rather than memorization, Frank Cardulla, recipient of The Presidential Award in Science Teaching, shows students how to use logical reasoning to solve virtually any chemistry problem assigned in their introductory chemistry class. Each program in this 30-part video series includes a subject specific teacher’s guide and reproducible worksheet...

Chemistry: The Complete Course Videos, VHS Basic Concepts of Chemical Equilibrium I — $36.30
Show students that the reasoning skills they use naturally in their everyday lives can also be used to solve chemistry problems. By focusing on understanding rather than memorization, Frank Cardulla, recipient of The Presidential Award in Science Teaching, shows students how to use logical reasoning to solve virtually any chemistry problem assigned in their introductory chemistry class. Each program in this 30-part video series includes a subject specific teacher’s guide and reproducible worksheet...

Earthworms, 6–8″, Preserved, Plain, Pkg. of 10 — $7.95
Lumbricus terrestris . Individually injected with preservative and fully extended for easy dissection, all specimens are supplied with clitellum. Your choice of single injected or plain. Supplied in jars or pails with WelchSafe.

Bullfrogs, 6–7″, Preserved, 2X Inj., Pkg. of 10 — $137.50
The best available in North America, these well preserved specimens feature firm muscle tone and lifelike color. We measure them from the tip of the upper jaw to the cloaca. Available plain or with single, double or triple injections. Select items available in pails in WelchSafe, otherwise vacuum packed.

Reichert ESM Microscopes, 25/100X — $73.09
Constructed of tamper-proof, nonremovable parts and a shockresistant stand. Their compact size (71/2" H) makes them easy to use in the classroom or field. Permanently attached reversible substage mirror—concave on one side; white diffusion surface on the other— directs natural light on the specimen. With stage clips and instruction manual.

VWR Rotary Spring Scale, 500 x 5g / 5 x 0.05N — $15.30
Easier to read than linear spring scales, these rotary models feature larger pointers and rotational movement. Designed for heavy duty use, the scales will last many years of student experimentation. A metal suspension ring is featured at the top and a hook at the bottom. Dial size: 3″ dia.

6-12 V Zinc-Carbon Batteries, Volts: 6, Terminals: Spring — $5.95
6-12 V Zinc-Carbon Batteries, Volts: 6, Terminals: Spring

Classroom Owl Pellet Study Kit — $69.95
Students gain insight into the secretive world of owls and their eating habitats with this kit. Developed for a class of 30 students, the kit includes 15 large barn owl pellets, three wall charts—the food web, bone sorting and the vole skeleton. Also included is a detailed teacher’s guide covering natural history, lessons and more. Pellets are fumigated and foil wrapped.

Demonstration Pendulum Kit Balls for Physics Experiments, Hardwood Balls, Drilled, 25 mm — $3.25
By suspending several pendulums parallel to one another, you can dramatize the effects of such variables as mass and length on pendulum behavior. This versatile unit consists of a heavy steel base supporting a 1.2m aluminum rod, with meter stick attached; an adjustable slide which can act as both an index and a stop; in addition to a triple pendulum clamp. Also includes instructions and three balls — two 25mm drilled metal balls and one 25mm drilled wooden ball.

Cylindrical Alnico Magnets, Type: Alnico V, Size, mm: 4.5 x 50 — $18.35
Cylindrical Alnico Magnets, Type: Alnico V, Size, mm: 4.5 x 50

Chromatography Solvent, Laboratory, Solution, Ethanol/Acetone (1:1), 500 mL Bottle — $16.50
Chromatography Solvent, Laboratory, Solution, Ethanol/Acetone (1:1), 500 mL Bottle

Weight of Air Cylinder — $41.00
Leave the stopcock open and weigh this cylinder. Then evacuate it and close the stopcock and it will have lost weight. Many students will be surprised to find that air has measurable weight. The cylinder is made of heavy gauge aluminum with one end sealed tight and the other bearing a brass stop-cock. The cylinder can be evacuated with an aspirator or vacuum pump. The difference in weight is usually about 0.6 g. Requires balance reading to 0.01g.

The Thin Man™ Sequential Human Anatomy Program — $439.00
Explore body regions layer-by-layer for in-depth understanding. Near life-size fullcolor rendition of the human body, features a sequence of five transparent mylar overlays, allowing the peeling away of layer after layer of tissue. Provide valuable insight into the 3-D spatial relationships of principal structures, major vessels and organ systems. Back side displays a full figure view of the skeletal and nervous systems. Mounted on a warp-proof composition board and supported by a tubular steel frame...

Insect Collecting Kit — $32.50
Complete instructional unit contains everything needed to collect, prepare and mount insect specimens of your choice. Illustrated 32-page booklet guides students through all the steps. Contents include: Collecting net, collecting jars with ethyl acetate, glassine envelopes, labels and pen, magnifier, forceps, spreading board, pins and pinning block, fumidors, naphthalene cone on pins, instruction booklet, and insect storage box (not shown).

Analysis of Minerals and Soils Kit, Refill Kit — $125.95
Was the suspect at the scene of the crime? Students utilize physical and chemical techniques to analyze a variety of materials and substances: soil, glass, dust, metal traces and more. Each kit includes soil samples, glass samples, bromoform, bromobenzene, universal indicator, 0.5 N hydrochloric acid, 0.5 N potassium chromate, polarizing film, tweezers, magnifying glasses, density gradient test tubes, dropper pipettes, microscope slides. You will also need a microscope, hydrochloric and nitric acids...

Denoyer-Geppert KnowBody Deluxe Teaching Torso with Detachable Head and Hardwood Turntable Base — $2,557.00
Much more detailed internally than either the Basic or Advanced Teaching Torsos, the brain and digestive organs being exceptionally detailed, the KnowBody Deluxe Teaching Torso has 16 detachable parts and 23 dissectible structures, including head; eyeball with extraocular muscles; brain half with arteries — four parts including cerebrum (two parts), cerebellum, and brain stem; left lung (showing sectioned pulmonary blood vessels and bronchioles) with ribs; right lung (showing blood vessels and bronchioles...