Item

Description

Order #

Price

Dissolved Oxygen

Comparison Kit

The aquatic animals and plants require oxygen for respiration like their terrestrial counter parts. Low concentrations of oxygen spell trouble to the health of organisms as it would to us. Compare aquariums, ponds, lakes, or even ocean water. You will use chemistry to measure oxygen in water samples. Over 20 tests are possible with this comparison kit.

$25.00

Chromatography Kit

An exciting introduction to chromatography! Articles and separate experiemnts will permit the student latitude of depth and understanding. What are the constituent substances that make up mixtures that surround us? The student will investigate using the techniques of a real chemist. This open ended study in chemistry is a lot of fun. Only with a few additional household items will be needed to complete the experiments.

$43.00

Recovery of Silver from

X-Ray Film

We are always looking for safer ways to recover valuable resources. This kit takes you through a process of recovering silver from X-Ray film. You also need a 5 gallon paint bucket and a strong heat source. If the heat source is not available, you may send it to use for refining at no additional cost.

$30.00

Qualitive Water Pollution

Test Kit

Become aware of the significance of water pollution by chemical examination of natural and treated water. Includes tests for ammonia, chlorine, chromium, copper, cyanide, iron, nitrate, phosphate, silica, sulfide, adn pH determination. A complete instruction booklet with background information is also included.

$45.00

Vitamin C Test Kit

Test various foods or liquids for vitamin C content. You will receive premeasured quantities of ascorbic acid (control) and dichloroendophenol (indicator), instructions of how to conduct test, and several hypotheses.

$20.00

The Chemical Helix

Make a 3-dimensional model of the periodic table. use it to investigate why the chemical helix exists, and why there are so many connections and relationships between elements. Includes 4 models, a mobile of the elements, a minibook and reference card. 32pp.

$9.55

Item

Description

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Price

100 Atom Kit

Ideal for studying structures of organic chemical compounds in 3-dimensional representations of molecules. Contains 100 balls representing carbon, hydrogen, oxygen, halogens, nitrogen, and sulfur. Balls are assembled with rigid springs.

$29.95

Student Atomic Model Building Kit

Students will learn about structure and composition of the nucleus and atom building helium and lithium atoms with a self-pacing laboratory exercise.

$18.90

Item

Description

Order #

Price

Chromatography Paper

1" wide , sold by the foot.

$0.50

pH-Standard pHydrion Insta-Check

Checks 0-13. A double roll dispenser containing two 15ft rolls of 7/32" tape and two color charts.

$12.00

Test Paper, Blue Litmus

Blue Litmus

$2.40

Test Paper, Red Litmus

Red Litmus

$2.40

Test Paper, PTC

PTC

$2.40

Test Paper, PTC Control

PTC Control

$2.40

Test Paper, pH Paper

pH Paper

$2.65

Acid, Neutral, Base

Replaces litmus paper as a method of determining acidity, neutrality, or basicity of a solution.

$2.15