( ( When ( light ( passes ( through ( a ( transparent colloid ) ) ) ) ) ) ( , ( it ( ( is scattered ) . ) ) ) )
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (NN light)) (VP (VBZ passes) (PP (IN through) (NP (DT a) (JJ transparent) (NN colloid)))))) (, ,) (NP (PRP it)) (VP (VBZ is) (VP (VBN scattered))) (. .)))
When light passes through a transparent colloid, it is scattered.
(ROOT (S (NP (JJ Transparent) (NN matter)) (VP (VBZ transmits) (ADJP (JJ light) (PP (IN without) (S (VP (VBG scattering) (NP (PRP it))))))) (. .)))