<oai_dc:dc xmlns:dpla="http://dp.la/about/map/" xmlns:cnt="http://www.w3.org/2011/content#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dcmitype="http://purl.org/dc/dcmitype/" xmlns:edm="http://www.europeana.eu/schemas/edm/" xmlns:gn="http://www.geonames.org/ontology#" xmlns:oa="http://www.w3.org/ns/oa#" xmlns:ore="http://www.openarchives.org/ore/terms/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:svcs="http://rdfs.org/sioc/services" xmlns:wgs84="http://www.w3.org/2003/01/geo/wgs84_pos#" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/">
  <dc:identifier>https://digital.sciencehistory.org/works/gw5i8m1</dc:identifier>
  <dc:title>Chemical Clock Reactions</dc:title>
  <dc:rights>http://rightsstatements.org/vocab/InC-RUU/1.0/</dc:rights>
  <dc:creator>American Chemical Society</dc:creator>
  <dc:creator>KQED-TV (Television station : San Francisco, Calif.)</dc:creator>
  <dc:date>Circa 1987</dc:date>
  <dc:description>&#x201C;Chemical Clock Reactions" is one of fifty-three short educational films originally produced in 1955 for KQED San Francisco as part of the series Tempest in a Test Tube. This series of half-hour episodes illustrates basic chemistry concepts for high school students through live experiments and demonstrations by presenter Dr. Harry Sello. The experiments used in the show were designed by the American Chemical Society&#x2019;s California chapter and reflect the safety standards of the time. This episode, &#x201C;Chemical Clock Reactions,&#x201D; teaches viewers how and why some chemical changes are delayed, and shows how different factors, like temperature, affect how fast reactions happen.</dc:description>
  <dcterms:isPartOf>Tempest in a Test Tube Video Tape Collection</dcterms:isPartOf>
  <dcterms:extent>32M 46S</dcterms:extent>
  <dcterms:spatial>California--San Francisco</dcterms:spatial>
  <dc:language>English</dc:language>
  <dc:subject>Chemical reactions</dc:subject>
  <dc:subject>Educational films</dc:subject>
  <dc:type>moving_image</dc:type>
  <dc:type>video recordings</dc:type>
  <edm:preview>https://digital.sciencehistory.org/downloads/deriv/3dkhliv/thumb_large_2X?disposition=inline</edm:preview>
  <dpla:originalRecord>https://digital.sciencehistory.org/works/gw5i8m1</dpla:originalRecord>
  <edm:rights>http://rightsstatements.org/vocab/InC-RUU/1.0/</edm:rights>
  <edm:hasType>video recordings</edm:hasType>
  <edm:object>https://digital.sciencehistory.org/downloads/deriv/3dkhliv/download_full?disposition=inline</edm:object>
</oai_dc:dc>