4. Systems to solve problems-Using electric circuits

Electric circuit

A pathway that electricity travels through

System

A group of different parts working together to do something

Battery

A device that stores and provides electrical energy

Switch

A device that turns an electric circuit on or off

Wire

A thin metal string that carries electricity

Street light

A tall lamp that lights up roads at night

Alarm

A device that makes a loud noise to warn people

Electric gate

A gate that opens and closes automatically using electricity

Traffic light

A signal that controls the flow of cars on roads

Fan

A device with blades that moves air to keep us cool

Heater

A device that produces heat to keep us warm

Microwave

An appliance that cooks food quickly using electricity

Engineer

A person who designs and builds things to solve problems

Energy

The power that makes things work or move

Device

An object or machine that has a particular purpose