"A child wonders how crayons are made and learns about how oil is mined and processed to extract paraffin wax, which is then sent to a factory to be made into crayons. This illustrated narrative nonfiction book includes a map showing oil fields and crayon factories, a glossary, and further resources"-- Provided by publisher.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.