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Video Description
Understanding: Extraterrestrialsreveals what NASA missions have discovered about other worlds and how scientists at the SETI Institute are searching for other intelligent life in the universe.
The Comprehension Questions are available to download as an RTF file. You can save the file to your desktop and open it in a word processing program.
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Product Type: DVD
Price: 69.95
Look back over the past two centuries, in which the science of chemistry developed dramatically.
Price: 69.95
Look back over the past two centuries, in which the science of chemistry developed dramatically.
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