Matter:
Form & Substance In The Universe
This program introduces students to the basic characteristics of matter; mass, density, weight and inertia; the differences between elements, compounds, substances, and solutions; the unique physical properties (boiling and freezing points, conductor or insulator, solubility, hardness, etc.) and chemical characteristics (reactivity, flammability, acid or base, combustibility, etc.); of different types of matter; and the four states of matter, solid, liquid, gas and plasma.
Compounds:
Electromagnetic Attraction In Molecules
Quality animation and graphics are used to explain how compounds are formed by either ionic or covalent bonding; the difference between various groups of compounds such as acids, bases, and hydrocarbons, chemical formulas, chemical equations, and the Conservation of Matter. Also explored are exothermic, endothermic, and neutralization reactions.
Atomic Structure: Mapping An Invisible World
Dynamic animation brings to life the invisible world of the atom and explains how models of the atom have changed over time. We look at the atomic models of Dalton, Rutherford, Bohr, and contemporary physicists. Also outlined are important concepts such as subatomic particles, anti-particles, isotopes, atomic number, mass, and radioactive particles. The program concludes by showing how radioactive isotopes are used to detect and fight disease, monitor the flow of pesticides through the environment, and to date fossil remains.
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The Periodic Table:
Reactions & Relationships
The Periodic Table contains a wealth of information, and this program helps the viewer learn how to access it. The program explains the periodic law and the significance of the rows and columns of The Periodic Table, and also outlines the physical and chemical qualities of the members of each group of elements from the alkaline metals to the noble gases. The importance of various groups of elements in industrial applications and in the environment is highlighted.
Reactions:
The Chemistry Of Change
This program looks at various types of reactions: exothermic and endothermic, spontaneous and non-spontaneous, and how variables such as temperature, concentration and the presence of a catalyst affect the rate of chemical reactions. The concepts of chemical equilibrium and the reversibility of reactions are also introduced. The importance of chemical reactions in biological processes like photosynthesis and in industrial applications are also examined.
Mixtures: Together But Separate
This program begins by explaining the difference between mixtures and compounds. The program then goes on to explore solutions and define concepts such as solvent, solute, electrolyte, saturated solution, supersaturated solution, solubility and polarity. How solubility is affected by the polarity of the solvent and solute is illustrated with 3-D animation. The viewer is also introduced to other types of mixtures such as suspensions and colloids. |
