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Data curation for interdisciplinary collaborative science requires a new online web-based approach that integrates domain knowledge from multiple resources and enables in tela (in the web) interactive collaboration between data providers, domain specialists, and data analysts. The Children's Health Exposure Analysis Resource (CHEAR) is a resource for child development and environmental exposure data. The CHEAR Data Center has developed an ontology that integrates study and exposure data in a way that is consistent across the program, and integrates with many best practice relevant vocabularies and repository schemas. This includes the World Wide Web Consortium's recommended Provenance Ontology (PROV), Semanticscience Integrated Ontology (SIO), the Chemical Entities of Biological Interest (CheBI) ontology, the Uberon multi-species anatomy ontology, and the Units Ontology as the starting …