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Chapter 4: Chemical Bonds

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Chemistry Review
This site features an excellent review of different types of chemical bonds. Visit this site and explain the difference between covalent and ionic bonds.

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Molecular Modeling
This site shows various models of molecules, which can be manipulated the help of the Chemscape Chime Plug-in. Visit this site and explain the importance of having three-dimensional models.

Unit 1: Chemical Interactions

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Periodic Law [Updated link coming soon.]
Read about the history of the periodic law and how it was discovered, including several biographies of notable scientists. Visit this site and study about how Mendeleev discovered the periodic law and summarize it in your own words in your journal.

Computer Graphics
Different movies and images of atomic structures; includes a nice MOV movie of the Bohr model. Try to recreate the shape of some models using balloons.

The Discovery of the Electron
This site describes the history of the electron and its discoverer, J.J. Thomson. Visit this site and hear Thomson describe how he discovered these subatomic particles.

STM Image Gallery
Visit this site to see various examples of STM images of atoms. After visiting this site, describe to a friend the different types of atoms you have seen.

The Scientific Method
A detailed explanation of the scientific method. With the help of your teacher, use this Web site to design and run your own experiment.

How Things Work
A site maintained by A. Bloomfield, the author of "How Things Work: the Physics of Everyday Life." Students can read old questions or ask Bloomfield their own. As a group, formulate a question for Bloomfield and ask it.

ParticleAdventure.org
An in-depth description of particles; includes a QuickTime movie and various links to a variety of nuclear subjects. Go through the adventure and write a journal entry about your experiences.

Taits Periodic Table of Elements [Updated link coming soon.]
This site features an interactive periodic table with information on the different groups and all the elements. Visit this site to learn more about a specific group of elements, like the Noble Gases.

Chemical Bond [Updated link coming soon.]
This site gives a very general breakdown of the different types of chemical bonds. Form a small group and together create a catalog of common substances and what types of bonds they contain.

Types of Chemical Reactions [Updated link coming soon.]
This educational Web page, maintained in Utah, explains the different types of chemical reactions. Visit this site and, under the supervision of your teacher and in a small group, run the experiments linked at the bottom of the page.