What is a shadow?: A second book of simple science fun: experiences with gravity, shadows, mirrors, and electricity (A Humpty Dumpty book) - Hardcover

 
9780819306883: What is a shadow?: A second book of simple science fun: experiences with gravity, shadows, mirrors, and electricity (A Humpty Dumpty book)

Inhaltsangabe

Simple experiments demonstrate some effects and uses of electricity, shadows, mirrors, and gravity.

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