________________ is made up of negatively charged particles called electrons. Electricity is found in circuits for things like phones and computers. ______________ is also an example of electricity. Electric circuits allow us to produce light, heat, sound and motion.
There are two types of circuits: ___________ and _____________ . In a series circuit, the electric current only has ________ path to follow. This means if one part of the circuit breaks, the entire circuit goes out. In a parallel circuit, the current has _____________ pathways to follow. This means if one part of the circuit breaks, the rest of the circuit will continue working.
For a circuit to work, there are a few materials that are required. First, you need wires. These
can be made from any metal because metal is a ______________ . Silver, Copper, and Gold are all excellent conductors. Next, you need batteries which act as a _________________ . Lastly, you need a load. A _________ is the device you want to do the work. A lightbulb, a motor, and a buzzer are all examples of loads. When all these parts are connected, they make a closed circuit for the current to flow in. Opening the circuit breaks the flow of electricity and the circuit stops working.
A _________ is a thin metal wire used in circuits. Fuses protect the more expensive parts of a circuit by taking on more of the heat generated by the electricity. If the circuit is overloaded, the fuse will overheat and break the circuit, stopping the flow of electricity.
Electricity has allowed us to engineer and _____________ in many ways. We are surrounded by technology that depends on circuits to work.
