About: http://webisa.webdatacommons.org/449876702

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	relative size and distance of the Earth-Moon system model the relative size and distance of the Solar System demonstrate mathematical operations such as multiplication, division
http://www.w3.org/ns/prov#wasQuotedFrom	thirteen.org