<http://webisa.webdatacommons.org/prov/217146773>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/51859069> .
<http://webisa.webdatacommons.org/51859069>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ck12.org> .
<http://webisa.webdatacommons.org/51859069>	<http://www.w3.org/ns/prov#value>	"This lesson could be used as a cross-disciplinary lesson to show overlap between chemistry and social sciences, such as government, geography, and policy." .
<http://webisa.webdatacommons.org/51859069>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .