A "screwdriver" is a tool that you use for turning screws. Two common types of screwdrivers are:

• flathead
• Phillip's head

A "flathead screwdriver" is shaped flat at the end. You can use it to turn screws that just have a straight line across the top.

A "Phillip's head screwdriver" is pointed at the end, with 4 ridges. You use it to turn screws that have an indentation on top shaped like a plus sign (+).