CUT OPTION IN MS-EXCEL - I NEED PROPER EXP

Hello,

I have typed some text in A1 to A10. No if i make use of cut option and again pasted in the same sheet or some other sheet then the text disappears form the old location and moved to the new location.

Now I cut the same text i.e from A1 to A10 and paste it in ms-word. I closed the work book alose. Now after pasting the cell in word, I opend the work book which is used for cut option. The cells which are selected for cut should not appear in the work book. But the cells are there in the source loaction also. (i.e Old loaction) why?

I.e cut option excel is working properly within the excel sheets. If cut the cells and paste it in Ms-word then the text appears in the excel work book also. (I.e in source also).
Why?