Electric current is the flow of electrons through a completed circuit of conductors. It is used to power everything from our lights to our trains. In these activities, students will explore different kinds of circuits and investigate what is required to make up a complete circuit.
Have you ever rubbed a balloon on your head? Why does rubbing a balloon on your head make your hair stand up on end?
When you rub the balloon, electrons move from the atoms and molecules in your hair onto the balloon. Electrons have a negative charge, so the balloon becomes negatively charged and your hair is left with a positive charge. This "separation of charge" is the reason for the collection of effects we call static electricity.
Students will explore static electricity through a series of demonstrations and experiments.
Electric motors are everywhere! In your house, almost every mechanical movement that you see around you is caused by an electric motor. In this lesson students will use simple supplies to create their own simple motors and explore how attractive and repulsive forces of magnetized materials can create movement.