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<http://webisa.webdatacommons.org/139846092>	<http://www.w3.org/ns/prov#value>	"Students investigate conductors and insulators and the types of materials that can be classi???ed in each group." .
<http://webisa.webdatacommons.org/prov/185367160>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/139846092> .
<http://webisa.webdatacommons.org/prov/183244322>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/139846092> .
<http://webisa.webdatacommons.org/139846092>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<eduplace.com> .