What makes a shadow?

A simple explanation of how a shadow is formed.

HarperCollins
1994
9780060229160
book
Lexile: 
220

Holdings

hidmidmiidnidwidlocation_codelocationbarcodecallnumdeweycreatedupdated
60914843609002279952019682YORE517YORE030875535.4 BUL535.415774597521709567815
73026644718062318952019682PEHH369PEHH108277535.4 BUL535.415798937721736518457
74698044871272320952019682PEIL371PEIL05117535.4 BUL535.415798937721736518457
234001358776802321952019682PESC372PESC41770535.4 BUL535.416179818691736518457
235813058934752342952019682WEKN486WEKN801413535.4 BUL535.416182294081736518457