the differences between Phrasal Verb and Verbal Phrase

ANN   Tue Jan 03, 2006 10:48 am GMT
What is the difference between Phrasal Verb and Verbal Phrase?
Could you please explain it and give some examples?

1.look up 2.turn off 3.look into 4.look forward to 5.take care of
In the Phrases mentioned above ,which are Phrasal Verbs?

Usually,we say:"look up the new words";"turn off the light",may i say"look the new words up"and"turn the light off"?
THANKS