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Schoolmasters Science

Schoolmasters Science

379 products

Showing 49 - 72 of 379 products
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The Spillnot
The Spillnot
16962

The design of the Spillnot uses the principles of Newtonian physics to keep the liquid in the container. The flexible handle and location of the suspension point above the center of the tray ensure that the forces on the liquid are always directed toward the supporting tray, even when the tray is in motion. Sideways forces usually responsible for spills are not transmitted to the tray by the flexible handle. Radial forces generated during swinging motion only force the liquid into the container more firmly. An inexpensive demonstration to intrigue students and challenge their analytical powers! Includes activity guide. 5" x 5" x 9". Weight: .25 lbs.
The design of the Spillnot uses the principles of Newtonian physics to keep the liquid in the container. The flexible handle and location of the suspension point above the center of the tray ensure that the forces on the liquid are always directed toward the supporting tray, even when the tray is in motion. Sideways forces usually responsible for spills are not transmitted to the tray by the flexible handle. Radial forces generated during swinging motion only force the liquid into the container more firmly. An inexpensive demonstration to intrigue students and challenge their analytical powers! Includes activity guide. 5" x 5" x 9". Weight: .25 lbs.

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$5.85 Each $19.50 Each
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Free Fall Tube
Free Fall Tube
16877

A very economical apparatus to demonstrate that light and heavy objects fall at the same rate / acceleration in a vacuum. Apparatus consists of a 36" (910mm) long x 2.25" (55mm) diameter, transparent tube with a stopcock mounted in a rubber stopper on one end, and a solid rubber stopper on the other end. Supplied complete with a 13" long vinyl tubing for connection to a vacuum pump (not supplied), a metal disc and a feather.

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$13.05 Each $43.50 Each
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Hoberman SphereHoberman Sphere
Hoberman Sphere
14327

Combines mathematics, geometry and aesthetics into a magical motion of surprising simplicity, beauty and fun. Its system of polymer links expand and contract almost effortlessly, changing in volume 30 times. A sturdy toy, an object of art, a tool for teaching mathematics and science - the Hoberman Sphere's universal appeal and versatility have led its owners to discover uses even its inventor never dreamed of. Children love to wear it on their heads, or climb inside. Grown-ups have proved themselves no less inventive: jugglers juggle with them. Drill teams march with them. Magicians make magic with them. Teachers teach geometry with them. Motivational speakers use them as metaphors for unity, teamwork and expanding potential. Ages 4 and up. Expands from 9.5" to 30".

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$10.49 Each $34.95 Each
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Cosmic Energy Kinetic Scuplture
Cosmic Energy Kinetic Scuplture
12932

Battery charged electro-magnetic mobile with perpetually moving forms. 9 1/4" high. One 9V battery required.
Battery charged electro-magnetic mobile with perpetually moving forms. 9 1/4" high. One 9V battery required.

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$3.89 Each $12.95 Each
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Ball and Card
Ball and Card
11736

Newton's Second Law of Motion. Demonstrates inertia.
Newton's Second Law of Motion. Demonstrates inertia.

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$3.29 Each $10.95 Each
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Archimedes Principle Demonstration
Archimedes Principle Demonstration
14703

Demonstrates the principle of Archimedes. Consists of two pieces: cylinder and close fitting bucket. All brass construction. 50mm long.
Demonstrates the principle of Archimedes. Consists of two pieces: cylinder and close fitting bucket. All brass construction. 50mm long.

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$4.05 Each $13.50 Each
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Density Blocks Set
Density Blocks Set
14709

Dense wood cube 1" sides. Average weight 16 grams/cube. Wood block: 2" x 2" x 1/8" soft wood. Steel block: 2" x 2" x 1/8". Aluminum block: 2" x 2" x 1/8"
Dense wood cube 1" sides. Average weight 16 grams/cube. Wood block: 2" x 2" x 1/8" soft wood. Steel block: 2" x 2" x 1/8". Aluminum block: 2" x 2" x 1/8"

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$1.49 Each $4.95 Each
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Density Cylinders - Set of 4
Density Cylinders - Set of 4
14705

Aluminum, brass, copper, and steel. 50mm x 12.5 mm.
Aluminum, brass, copper, and steel. 50mm x 12.5 mm.

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$3.45 Set $11.50 Set
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*zPix 200 Digital Microscope with Digital Camera
*zPix 200 Digital Microscope with Digital Camera
16663

The zPix 200 MM-740 from Carson is a powerful Zoom Digital Microscope that displays the Magnified image right on your computer screen. The impressive 36x-176x Zoom Magnification allows you to see details of ordinary objects you never knew existed! Capture an image by using the built-in 1.3 megapixel resolution Digital Camera. You can even capture close-focus video! The zPix 200 MM-740 Zoom Digital Microscope is compatible with the following: Mac OSX 10.4 or later, OSX 10 Mavericks, PC with Windows 2000 SP4, Windows XP, Windows Vista, Windows 7. A USB 2.0 port is required. DOES NOT WORK WITH TABLETS.
The zPix 200 MM-740 from Carson is a powerful Zoom Digital Microscope that displays the Magnified image right on your computer screen. The impressive 36x-176x Zoom Magnification allows you to see details of ordinary objects you never knew existed! Capture an image by using the built-in 1.3 megapixel resolution Digital Camera. You can even capture close-focus video! The zPix 200 MM-740 Zoom Digital Microscope is compatible with the following: Mac OSX 10.4 or later, OSX 10 Mavericks, PC with Windows 2000 SP4, Windows XP, Windows Vista, Windows 7. A USB 2.0 port is required. DOES NOT WORK WITH TABLETS.

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$26.99 Each $89.95 Each
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MM-940 zPix™ 300 Digital MicroscopeMM-940 zPix™ 300 Digital Microscope
MM-940 zPix™ 300 Digital Microscope
16662

The zPix 300, MM-940 is a powerful 2 megapixel zoom USB digital microscope that displays a magnified image right on your computer screen. The impressive 86x-457x effective magnification (on 21″ monitor) allows you to see details of ordinary objects that you never knew existed! Capture an image to keep with the click of a button. You can even capture close focus video and send it to your friends and family. Use the base attachment to view prepared slides or remove the base and place the microscope on any surface to reveal extremely fine details. The zPix 300 USB digital microscope will provide hours of fascinating and educational entertainment for adults and children alike.

To determine the power, multiply your computer screen size by 4.09-21.76.

Example: 32″ computer screen would magnify 131-696x (power). Please note, the effective magnification is a combination of the optical system and a high powered digital zoom.

The latest version of the zPix 300 MM-940 zoom digital microscope is compatible with the following: Windows 10/8/8.1/7/Vista/XP SP2+ and all Mac OS. A USB 2.0/3.0 port is required.

* DOES NOT WORK WITH TABLETS *

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$39.90 Each $79.95 Each
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GeoSafari® Jr. Talking Microscope™GeoSafari® Jr. Talking Microscope™
GeoSafari® Jr. Talking Microscope™
14982

Look, listen, and learn as wildlife warrior, Bindi Irwin, shares kid-friendly facts about nature! Take a closer look with the only talking microscope for preschoolers packed with photo-quality images and audio about the amazing, up-close world of animals, plants, everyday items and more.

· 5x magnification with focus free dual eyepieces
· Introduce children to a real scientific toy
• Provides visual detail and information about animals, plants, and everyday items
· Contains 20 slides and over 100 facts and questions

Cut to the Chase
· 2 Modes: Fact Mode and Quiz Mode
· 20 Slides, each with three four-color photo-quality images, for a total of 60 images
· 2 Comfortable eyepieces-no need to close one eye!
· Easy cleanup and storage: slides fit inside microscope
· Requires 3 AAA batteries (not included)
· Multilingual audio-4 languages included!
• For ages 4-7

* Product color may vary

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$27.40 Each $54.99 Each
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Slide Storage Box - Plastic (Holds 100 Slides)
Slide Storage Box - Plastic (Holds 100 Slides)
16454

Sturdy two-piece molded plastic boxes. The bottom section has slide numbers engraved for easy reference, and the inside of the lid carries a numbered slide index.
Sturdy two-piece molded plastic boxes. The bottom section has slide numbers engraved for easy reference, and the inside of the lid carries a numbered slide index.

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$2.09 Each $6.95 Each
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Slide Storage Box - Plastic (Holds 50 Slides)
Slide Storage Box - Plastic (Holds 50 Slides)
14947

Sturdy two-piece molded plastic boxes. The bottom section has slide numbers engraved for easy reference, and the inside of the lid carries a numbered slide index.
Sturdy two-piece molded plastic boxes. The bottom section has slide numbers engraved for easy reference, and the inside of the lid carries a numbered slide index.

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$1.19 Each $3.95 Each
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Slide Storage Box - Plastic (Holds 25 Slides)
Slide Storage Box - Plastic (Holds 25 Slides)
14946

Sturdy two-piece molded plastic boxes. The bottom section has slide numbers engraved for easy reference, and the inside of the lid carries a numbered slide index.
Sturdy two-piece molded plastic boxes. The bottom section has slide numbers engraved for easy reference, and the inside of the lid carries a numbered slide index.

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$0.89 Each $2.95 Each
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Slide Storage Box - Wood (Holds 100 Slides)
Slide Storage Box - Wood (Holds 100 Slides)
14944

Strong wooden frame, with hinged cover. Slides fit into numbered beveled slots. Printed index lines the cover.
Strong wooden frame, with hinged cover. Slides fit into numbered beveled slots. Printed index lines the cover.

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$4.35 Each $14.50 Each
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Slide Storage Box - Wood (Holds 25 Slides)
Slide Storage Box - Wood (Holds 25 Slides)
14942

Strong wooden frame, with hinged cover. Slides fit into numbered beveled slots. Printed index lines the cover.
Strong wooden frame, with hinged cover. Slides fit into numbered beveled slots. Printed index lines the cover.

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$2.39 Each $7.95 Each
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Coplin Staining Jar
Coplin Staining Jar
16459

Made of polypropylene and can hold 10 standard 1" x 3" microscope slides back to back. The interior is grooved in a way to hold the slides in an erect position. Jar features domed and shallow thread screw cap.

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$8.25 Each $27.50 Each
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Slide Holding Forceps
Slide Holding Forceps
14941

Made of plated steel wire for handling cover glasses and slides, carefully and tightly.
Made of plated steel wire for handling cover glasses and slides, carefully and tightly.

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$0.32 Each $1.05 Each
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Human Pathology Slides (15 Slides)
Human Pathology Slides (15 Slides)
44296

Includes: Pinworm infection of appendix, Meningitis of the brain, Arterial occlusion, Emphysema, Lung infarction, Stomach ulcer, Kidney infarction, Thyroid goiter, Liver cirrhosis; Gangrene; Carcinoma of the lung, skin, kidney, breast and liver.

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$21.90 Set $73.00 Set
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General Zoology Slides (25 Slides)
General Zoology Slides (25 Slides)
44245

Contains: Amoeba proteus, Paramecium, Grantia, Hydra, Obelia hydroid colony, Gonionemus, Planaria, Taenia scolex, Tapeworm gravid segment, male hookworm, Trichinella, Earthworm, Drosophila, frog and human blood, Kidney section, Epithelium, frog skin, striated muscle, Lung, Trachea, Amphiuma Kidney section, skin Amphiuma, wing feather, Turtle esophagus, Intestine.
Contains: Amoeba proteus, Paramecium, Grantia, Hydra, Obelia hydroid colony, Gonionemus, Planaria, Taenia scolex, Tapeworm gravid segment, male hookworm, Trichinella, Earthworm, Drosophila, frog and human blood, Kidney section, Epithelium, frog skin, striated muscle, Lung, Trachea, Amphiuma Kidney section, skin Amphiuma, wing feather, Turtle esophagus, Intestine.

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$26.10 Set $87.00 Set
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Elementary Zoology Slides (12 Slides)
Elementary Zoology Slides (12 Slides)
44237

This introductory set contains the following: Amoeba, Paramecium, Hydra plain, Sponge spicules, Planaria, Tricinella in muscle, Earthworm cross section of anterior and posterior, Clam gill, Daphnia, Fruitfly, Housefly head, insect trachea.

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$12.60 Set $42.00 Set
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General Science Slides (25 Slides)
General Science Slides (25 Slides)
44164

Set includes: bacteria-3 types, sawdust, raw and cooked meat, human hair, dust, Starch, grains, Quartz sand, letter "e", cosmetics, cork, Salt crystals, stagnant water, fibers, threads crossed, woven cloth, Tobacco, Algae, Corn stem, Paramecium Caudatum, dog flea, Diatoms, paper fibers, Pine pollen, Human and frog blood.
Set includes: bacteria-3 types, sawdust, raw and cooked meat, human hair, dust, Starch, grains, Quartz sand, letter "e", cosmetics, cork, Salt crystals, stagnant water, fibers, threads crossed, woven cloth, Tobacco, Algae, Corn stem, Paramecium Caudatum, dog flea, Diatoms, paper fibers, Pine pollen, Human and frog blood.

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$20.70 Set $69.00 Set
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Biology Slides (25 Slides)
Biology Slides (25 Slides)
44156

Penicillium, Coprinus, Spirogyra vegetative and conjugating, Pediastrum, bacteria 3 shapes, Moss male head, Pine life, Onion mitosis, Corn stem, Lilac leaf, pollen, Lily ovary, Paramecium, Amoeba proteus, Grantia spicules, Hydra, Planaria, letter "e", Trichinella, Daphnia, Cartilage hyaline, frog and human blood and skin.

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$24 Set $80.00 Set
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Meiosis Slide Set
Meiosis Slide Set
16753

Note:
All slides are shown in cross section (c.s.)

Set Includes:
Q1 Lilium Anther Early prophase of meiosis
Q2 Lilium Anther, Late prophase meiosis
Q3 Lilium Ovary, First meiotic division
Q4 Lilium Ovary, Second meiotic division
Q5 Lilium Ovary, Third meiotic division
Q6 Lilium Anther, First meiotic division
Q7 Lilium Anther, Second meiotic division

Introduce the world of microscopy to your students through the selection of this prepared slide set. High-quality, yet affordable, 1"x 3"slides labeled and stored in a slotted plastic container. Set of 12 prepared slides. Set Includes: O1 Lilium Anther early prophase of meiosis O2 Lilium Anther late prophase meiosis O3 Lilium Anther first meiotic division O4 Lilium Anther second meiotic division O5 Lilium Ovary first meiotic division O6 Lilium Ovary second meiotic division O7 Lilium Ovary third meiotic division.

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$14.40 Set $48.00 Set