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

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

Use this Magnesium Ribbon for combustion experiments and to demonstrate the principles of chemical changes.
• Sold in a pack of approx. 31 g
• Flammable solid
• 0.03 mm (0.0012 in) thick

Item 2074-01

$2.75

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

$3.75

• AmSci Exclusive
• Video Available

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

$7.50

• AmSci Exclusive
• Video Available