List of devices

A metal detector is a tool that finds metal objects buried in the ground. It works by sending out a signal and listening for changes when metal is nearby.

You sometimes see people using a metal detector at the beach or in places people have been digging like construction sites or plowed fields, looking for coins, jewellery or other metal objects.

A microchip is a tiny machine component that is made of a series of circuits that help a computer or other machines process information.

A microscope is a device that that you use to see things that are so small you cannot see them using just your eyes. Microscopes are used to see things like cells that make up larger objects like skin or leaves.

Mills are places or devices where some kind of raw material is turned into something more useful. There are many different kinds of mills. Older mills usually consist of a large, heavy millstone which is turned either by the power of flowing water or by the wind, hence the commonly seen windmills.
Mills might be used to grind grain into flour, press olives into oil, process cotton into cloth, or even for processing lumber in a sawmill.

A mirror is something that lets you see your reflection. You can use a mirror so you can see yourself brushing your hair, or to see behind you when you are driving a car.
Not all animals know that their reflection is them, the only animals that do know are elephants, chimpanzees, dolphins, magpies and orangutans.

A modem is a device that transmits data over telephone or cable lines. You connect to the internet using a modem.

A computer monitor is a device that is used for displaying information from a computer. Modern monitors tend to be quite wide, and also quite thin from front-to-back, so they take up less space on your desk.

Mousetraps are small devices designed to catch mice. There are many different designs of traps, but all rely on using some kind of bait and a trigger mechanism that causes something to move very quickly and either catch or kill the mouse.
Larger versions of mousetraps are available for catching rats.

An odometer is a device that is used for measuring how far you have traveled. Odometers are usually fitted inside cars and other vehicles.

A paddle is a hand-held device that you push backwards through the water to make a boat or canoe move forward.