SCIENCE AND TECHNOLOGY

THE CLOCK

THE CLOCK'S PARTS

• The arms-it points out the time. It is the primary part of the clock. The wheels power the arms
• The wheels-The clock consist of three wheels: the center wheel, the third wheel and the escape wheel. The center wheel rotates once per hour, the third wheel rotates once per minute and the escape wheel regulates how fast the clock is
• Mainspring- In mechanical clocks and watches, time is kept by the release of potential energy contained in a wound-up spring called the mainspring

THE FAN

FANS PARTS

• Blades The blades are one of the most identifiable features of a fan. These are the paddle-shaped objects that spin and move air through the fan. They're angled to carry air from one point to another.
• Hub-The hub is located in the center of the fan blades. It is the device that connects the motor to the fan blades. Without it, your fan would not work. The blades and the rest of the fan would be two different pieces. The hub keeps everything together.
• Guard-it's is the "armor" of the fan that prevents the blade from getting touched.
• Wiring(obviously)-it transfers electricity from the plug,to the motor
• Motor-The motor is what makes an electric fan go. Whether it's a ceiling fan, a window fan, a desk fan, a computer fan or an automotive fan, they all need power to keep turning and moving air, which typically comes from a motor

THE SINK

THE PARTS OF THE SINK

• Basin The basin is the part of the sink that holds the water when the water is turned on. Most bathroom sink basins are porcelain on steel or vitreous china.
• Faucet-Faucets are the part of the sink where the water comes out of the main piping and into the basin.
• The controls-The controls of the sink, which usually are handles, knobs, levers or pumps, turn on the water and adjust water temperature.