If you want to copy text or an object to another location, for example a new slide, use the Copy tool. Select the text or object you want to copy, then go to the Home tab > Clipboard and select Copy, then click in the location you want the text or object to be placed, then go to Home tab > Clipboard and select Paste.
If you’re a fan of shortcuts, use CTRL + X to cut and CTRL + V to paste.