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The World of Chemistry: Selected Demonstrations and Animations
Part II
Nave Ben-Zvi
Hebrew University of Jerusalem, Jerusalem, Israel 91904 Lisa Rags dale
University of Maryland at College Park, College Park, MD 20742
Note:
Order Item Number: SP-4
Abstract Appeared: Journal of Chemical Education,1993, 70,127.
"The World of Chemistry: Selected Demonstrations and Animations II" is the second video laserdisc issue of JCE: Software with a selection of demonstrations and animations taken from the video component of The World of Chemistry telecourse (1). This video series provides a new dimension to the teaching of chemistry by the extensive use of demonstrations, animation, interviews, and real-life stories. The video serves as the vehicle to transport the student upon alternative roads--avenues that cannot be explored otherwise in the classroom.
The World of Chemistry videodiscs have been designed so that a variety of demonstrations - the macro world of chemistry - are followed by animations that carry the learner to the molecular world. We believe that exposing students to both macro and micro worlds helps them conceptualize more easily and overcome some commonly held misconceptions, and improves their ability to move back and forth between the macro and micro worlds.
This second World of Chemistry videodisc compiles segments of descriptive and applied chemistry - with examples from the disciplines of biochemistry, organic chemistry, inorganic chemistry, and environmental chemistry. Most of the demonstrations are followed by molecular animation. Video segments included are:
Side A
- Black Boxes and Models
- Electron Clouds and Energy Levels
- The Aufbau Principle
- The Making of Sodium Chloride
- Nitrogen Triiodide Decomposed
- Water's Structure
- Detergent Action
- A Catalyst on the Surface
- From an Amino Acid to a Peptide Chain; The Alpha Helix; Hair and Silk
- The Boat and Dock Model
- DNA Structure
- Synthesis of Messenger RNA
- Protein Synthesis
Screen from "The World of Chemistry II." Click image to view video.Side B
- Carbon and Its Bonds
- Making Aspirin
- Perkin's Experiment
- Chiral Molecules and Polarized Light
- Making Polyethylene
- Polyethylene
- Polyacrylonitrile
- Earth's Atmosphere
- Depletion of Ozone
- The Hydrologic Cycle
- The Carbon Dioxide Cycle
- Acid Rain and Limestone
- Lime Water and Carbon Dioxide
- Silicates
- Thermite Reaction
The videodisc medium obviates concerns that normally accompany demonstrations: safety, availability and disposal of reagents, cost and time of constructing apparatus, and visibility of the presentations.
Hardware and Software Requirements
"The World of Chemistry: Selected Demonstrations and Animations II" is a 12-in., double-sided, 60-minute, CAV-type videodisc in NTSC format (it is incompatible with the PAL standard used in many European countries). It may be operated from any videodisc player using a handheld remote-control keypad or a barcode reader.
To make the video presentation visible to students in a classroom either a large-screen color monitor or a color video projection unit will be needed. The size of the monitor (or the need for a projection unit) depends on the size of the class to which the presentation will be made.
Acknowledgement
The World of Chemistry received major funding from The Annenberg/CPB Project.
Literature Cited
Availability
Available: Now
First Published: June 1993
Citation: Ben-Zvi, N.; Rags dale, L. The World of Chemistry: Selected Demonstrations and Animations
Part II J. Chem. Educ. Software SP4
Keywords: Lecture Aid; Computer Room; Simulation; High School; General; Demonstrations
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Last Updated: August 17, 2001
Created: December 3, 1996Created by: J. L. Holmes
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