Turn off the hot and cold water supply at the valves with your hands underneath the sink. Unscrew the nuts that hold the water lines in place with a basin wrench, and unscrew the retaining nuts that hold the faucet to the sink with your hands. Then lift off the kitchen faucet.
Pry off the countertop backsplashes. Insert the tip of a pry bar in between the backsplash and the wall, and hit the butt of the pry bar with a hammer. When loose pull it away from the wall with your hands.
Insert the pry bar into each corner of the granite countertop. Hit the butt of the pry bar with a hammer to help nudge the countertop loose. Apply gentle pressure when prying the countertop loose.
Slip the pry bar in between the granite countertop and the cabinet boxes underneath using the same technique. First, insert the pry bar every few inches along the perimeter countertop, then move it deeper into the center of the countertop to pry it completely free from the box.
Lift the loose granite countertop with your hands. Ask at least one person to help lift the countertop.
Lay the countertop upside down on a flat surface.
Separate the sink from the countertop. The sink is either clipped into or glued to the countertop. If there are clips, untwist the mounting bolt holding the clip with your hand until the clip is loose enough to remove the sink. If it is glued, insert the pry bar between the sink and the countertop. With gentle pressure, pry the sink away from the underside of the countertop to loosen the glue. Then remove the sink.