This file contains a comprehensive set of 18 cards for introducing/explaining/learning about the most fundamental/basic components in the study of Astronomy. My mission was to create pared-down, simplified explanations to render these complex concepts graspable and interesting to Elementary-aged children. Included in the download: 18 four-part Nomenclature Cards"What Am I?" Cards for students to test their knowledge and teachers to assess learningFollow-up booklet template to record information