Cobalt Chloride test paper is used to test for moisture. It will turn a light pink/white when moisture is detected and return to its original blue color when dry or removed from the moisture. 

Item 2091-10

$1.50

Use This Apparatus For Qualitative And Quantitative Study Of The Electrolytic Decomposition Of Electrolytes Such As Water, Hydrochloric Acid, Etc. It Consists Of 2 Vertical, 50 ml, Gas-Collecting, Graduated Glass Tubes With Stopcocks At Top. The Tubes Are Joined To A Reservoir By A Bridging Tube And Fitted With A Pair Of Platinum Electrodes At Their Lower Ends. A Lead Wire Connecting The Platinum Electrode Passes Through The Glass Tube For External Connections, So That Only The Platinum Electrode Comes In Contact With The Electrolyte.
• Comes With A Teacher’S Guide And Reproducible Student Handout
• packed In A Styrofoam Case
• Mounted On A Cast Iron Stand
• Requires A 6 V Battery Or Low Voltage Dc Power Supply For Operation (Not Included)

Item 3155-01

$71.25

• Teacher's Guide Included
• Handout Included

New Hoffman Electrolysis Apparatus

Item 3156-01

$87.50

This Kit Helps Students Understand How Dew And Frost Are Formed. They Will Also Understand Concepts Of Condensation, Dew Point, Evaporation, Humidity, And Sublimation. Making Dew Classroom pack Contains Materials For 15 Pairs Of Students.
• Comes With A Teacher’S Guide
Includes:
• 15 METAl Cans
• 15 METAl Backed Thermometers

Item 9447-15

$24.31

• AmSci Exclusive

This conductivity meter can be used to compare the conductivity of different solutions and solids. Touch the probes to the object or dip into a solution, press the button, and observe the results on an LED screen. The meter measures conductivity on a scale from 1 (low) to 10 (high). The conductivity tester be used in lessons on electricity or for comparing the properties of different elements.
• Stainless steel probes: 14cm L x 1.75 cm thick (5-1-2″ L x 11/16″ thick)
• Batteries included

Item 3224-02

$20.00

The Sixteen Piece Starter Chemistry Kit was specifically designed with safety and fun in mind and is perfect for elementary classrooms, home school science lessons, and young science enthusiasts. The kit and included activity guide encourage exploration of multiple chemistry and physics concepts, including density, chemical reactions, heat transfer, molecular bonds, capillary action, and more. Suggested experiments require little more than common household items, such as sugar, water, or food coloring. All kit materials are washable and reusable.

Item 8820-00

$55.00

• Video Available

This molecular model set can be used to visualize a variety of molecules and molecular reactions. The hands-on modeling makes chemistry more concrete and approachable for students.

Item 1540-20

$19.09

These pH test strips can be used to measure acidity or alkalinity of chemical solutions are perfect for introductory chemistry lessons related to acids and bases.
• Includes a color code key to determine pH from 1-14.
• 100 test trips per vial

Item 2092-10B

$1.30

These blue litmus paper test strips turn red when dipped into acidic solutions and are perfect for introductory chemistry lessons related to acids and bases.
• Easy-to-use
• 100 strips per vial

Item 2091-01

$0.96

These red litmus paper test strips turn blue when dipped into alkaline/basic solutions and are perfect for introductory chemistry lessons related to acids and bases.
• Easy-to-use
• 100 strips per vial

Item 2091-02

$0.75

These pH test strips can be used to measure acidity or alkalinity of chemical solutions are perfect for introductory chemistry lessons related to acids and bases.
• Includes a color code key to determine pH from 1-14.
• 100 test trips per book
• Perforated for easy detachment

Item 2092-10

$0.60

• Best Seller

These aluminum rods can be used in chemical reactions in the chemistry classroom or laboratory.
• Length: 38 mm (1.5″)
• Sold in packs of 48

Item 6406-10

$4.25

These platinum electrodes were designed as replacement parts for the Hoffman Electrolysis Apparatus.
• For use with Items #3155-01 and 3155-02
• Includes platinum electrodes and lead wires, glass tubes and stoppers
• Sold as a set of 2

Item 3155-04

$23.75

These carbon electrodes were designed as replacement parts for the Hoffman Electrolysis Apparatus.
• For use with Items #3155-01 and 3155-02
• Includes carbon electrodes and insulated lead wires and stoppers
• Sold as a set of 2

Item 3155-05

$3.18

This product is a replacement part for Boyle’s Law Apparatus (Item #3548-11).

Item 3548-12

$5.00