Interactive applets illustrate the chemical structure of a variety of molecules. The molecules in this site are considered common based on their general uses world-wide, application in chemistry classrooms, or by the interest they spark because of their fascinating structural properties. Thumbnail images are organized by category, including biochemical, environmental, and medicinal molecules, minerals ... Full description.

The Macrogalleria is dedicated to the science of polymers. A polymer is a large molecule, often containing many thousands of small molecules joined together chemically to form one giant macromolecule. The site is divided into five education levels based on the nature of the material. Level one, 'Polymers are Everywhere', illustrates where polymers are found in everyday life. Resource users can visit ... Full description.

This lab activity is designed to teach students how to test for pH and understand its relationship to them and their environment. They will learn what pH is, draw and label a pH scale, measure the pH of various items, and explain why it's important to understand pH, for example, the danger presented by substances having very high or low pH. Full description.

This collection of resource features demonstrations, laboratory investigations, teaching tips, worksheets and other chemistry-related activities. Materials include investigations of mols, nuclear energy, the periodic table, weight and mass, elements, calculations, equations, pH, atomic weight, half-lives, and reactions. Full description.

WebElements is an award-winning online periodic table. There is a Scholar Edition for students as well as a Professional Edition. Researchers click on the symbol for any element on the periodic table displayed on the home page. Information given for each element includes the name for the element in several languages, essentials (name, symbol, atomic weight, etc.), description, and isolation. Sidebars ... Full description.

These materials and documents are typical of those presented in an undergraduate course in general chemistry, analytical chemistry, and analytical instrumentation. Resources for educators include Excel spreadsheet simulations for analytical and physical chemistry, prototype JavaScripts and PERL scripts, lists of web workshops and publications, and links to the most recent papers and presentations ... Full description.

This networked laboratory simulation provides an environment in which students can select from hundreds of standard chemical reagants and combine them in any way they see fit. Instructors may use this environment in a variety of settings including student homework, group projects, computer lab activities and pre- and post-lab exercises to support varied approaches to chemical education. Activities ... Full description.

This webpage presents a periodic table, containing physical data, chemical properties, health and environmental data of all chemical elements. It is available in English, French, German, Spanish, and Dutch. Full description.

This lesson will help students gain experience in asking questions and conducting inquiry by exploring the separation of colors in water and other solvents; and to communicate and share findings of student investigations. The lesson uses a technique called paper chromatography, which is demonstrated using water, ink, and a coffee filter. Scientists use chromatography frequently to separate and identify ... Full description.

In this lesson, students will view salt under varied magnifications and begin to construct the understanding that materials may be composed of parts that are too small to be seen without magnification. They will observe salt with the naked eye, and then under a hand lens, microscope, and the electron microscope (the electron image is via the Internet). In order to complete this lesson, it is important ... Full description.