Electricity is a versatile form of energy that the students encounter every day. Although students already know much about the many uses of this convenient energy source, in this topic they will electricity can be used to send signals. In this topic they will develop a deeper understanding about how electricity can be used to send signals.
In this topic, students will explore devices that use electric currents to turn electric circuits on and off. They will be introduced to electronics, an area that has had a major impact on our lives in terms of products and devices. Through these investigations the students will begin to understand how electric and electronic systems are able to control very complicated processes automatically.
By increasing their knowledge of the role electricity plays in their lives, they will appreciate the fact that they have control over the amount of electricity they use in their homes and at school. This leads to the students' understanding of the need to conserve electrical energy whenever possible.