( Science ( ( is ( ( the knowledge ) ( ( gathered ( about ( the ( natural world ) ) ) ) ( through ( ( observations and ) ( controlled experimentation ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Science)) (VP (VBZ is) (NP (NP (DT the) (NN knowledge)) (VP (VBN gathered) (PP (IN about) (NP (DT the) (JJ natural) (NN world))) (PP (IN through) (NP (NP (NNS observations)) (CC and) (NP (VBN controlled) (NN experimentation))))))) (. .)))
Science is the knowledge gathered about the natural world through observations and controlled experimentation.
(ROOT (S (NP (NNP Science)) (VP (VBZ is) (NP (NP (DT a) (NN process)) (PP (IN of) (S (VP (VBG knowing) (PP (IN about) (NP (DT the) (JJ natural) (NN universe))) (PP (IN through) (NP (NN observation) (CC and) (NN experimentation)))))))) (. .)))