These Flash animations were originally made for the Wired Chemist, a site that provides scientific resources and educational materials. The animations are educational demonstrations of certain scientific concepts. Some also provide a virtual laboratory where the student can manipulate various tools and materials.
- Bohr Model
The Bohr model was developed in 1913 by Niels Bohr and is a conceptual model of the atom and the forces within it. It depicts the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus — similar in structure to the solar system, but with electrostatic forces providing attraction, rather than gravity.
This animation allows the student to manipulate the electrostatic forces within the atom and observe the resultant effect on the electon's orbit. The student is then quizzed on their understanding of the model.
- Density Virtual Laboratory
The Density animation creates a virtual laboratory where the student must determine the identity of an unknown metal by calculating its density.
- VSEPR Theory
Valence Shell Electron Pair Repulsion theory provides a model for determining the geometric shape of a molecule. This animation demonstrates the theory and allows the student to test their understanding.
- Planes of Symmetry
This animation demonstrates the planar structure of a geometric form by cross-sectioning it into symmetrical pieces.
The forces governing the interactions of charged particles were first discussed quantitatively by Charles-Augustin de Coulomb. These interactions are among the most important determinants of the chemical and physical properties of matter.
In this animation the student explores the relationship by watching the attraction and repulsion of charges and their potential energy.
- Symmetry of Carbon Tetrachloride
Molecular symmetry describes symmetry in molecules and the classification of molecules in groups based on symmetry. This animation demonstrates the symmetry and classification of the carbon tetrachloride molecule.