( ( ( ( Conduction ( is ( when ( materials ( are ( in ( physical contact ) ) ) ) ) ) ) and ) ( ( kinetic energy ) ( is ( ( ( transferred ( through ( collisions ( of ( their particles ) ) ) ) ) , ) ( according ( to ( ( the ( Kinetic Theory ) ) ( of Matter ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NNP Conduction)) (VP (VBZ is) (SBAR (WHADVP (WRB when)) (S (NP (NNS materials)) (VP (VBP are) (PP (IN in) (NP (JJ physical) (NN contact)))))))) (CC and) (S (NP (JJ kinetic) (NN energy)) (VP (VBZ is) (VP (VBN transferred) (PP (IN through) (NP (NP (NNS collisions)) (PP (IN of) (NP (PRP$ their) (NNS particles))))) (, ,) (PP (VBG according) (PP (TO to) (NP (NP (DT the) (NNP Kinetic) (NNP Theory)) (PP (IN of) (NP (NNP Matter))))))))) (. .)))
Conduction is when materials are in physical contact and kinetic energy is transferred through collisions of their particles, according to the Kinetic Theory of Matter.
(ROOT (S (NP (NNP Conduction)) (VP (VBZ is) (NP (NP (DT the) (NN transfer)) (PP (IN of) (NP (NP (JJ thermal) (NN energy)) (PP (IN between) (NP (NP (NNS particles)) (PP (IN of) (NP (NN matter))))))) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (VP (VBG touching) (S (VP (VBN called))))))))) (. .)))