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A protective gear often made from high-density polyethylene or polycarbonate appears in the last four issues of ChemMatters. Can you find it? Play now

Dawn, a spacecraft that will explore two large asteroids, is powered by an innovative ion propulsion engine. This type of engine is so efficient that it can thrust off and on for five years, gradually adding velocity.
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Hollywood Special Effects
How did they do that?
Role of chemistry in making special effects for movies

Get 25 years of ChemMatters on CD!
Great for class projects, research, and science fairs! Easy access to articles and puzzles from 1983-2008.
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