broken pieces of glass from a window can't form a shadow.
Explanation:
the reason is that shadow is formed only when light rays hits an opaque object, which doesn't let light to pass through it, but glass is a transparent object, hence light rays passes through it forming no shadow..
Early hypotheses were not based on observations. Early hypotheses were not tested by experimentation. Early hypotheses were formed from scientific questions. Early hypotheses were influenced by creative thinking
