A battery is a device that stores and produces electricity from chemical cells.

Batteries provide portability. We use batteries in toys, cell phones, laptops, cars, and so much more!

How do you use batteries?

A complete circuit is almost like a circle because it continues with no gaps. Energy continually flows through this circuit, unless interrupted. A complete circuit consists of a power source, a load (like a light), and sometimes a switch.

Did you know?



When you flip a light switch in your house, you complete a circuit. This allows the electricity to flow from the power source to your lights.

Conductors of electricity are materials that allow the free flow of electric charges.  

Metals are the most common type of conductors of electricity. Some materials, such as wood, prevent the flow of electricity.

An electrical charge is a property of matter based on the balance of protons (positive charge) and electrons (negative charge). These charges repel and attract one another.

OUCH!!!!

Have you ever touched something and felt a small zap?

You most likely felt static electricity. Static electricity is an electrical charge on the surface of an object.

An electrical circuit is a path (typically made of wires) in which electrical current flows.

A power source sends electric charges through an electrical circuit to your refrigerator to make it work.

An electrical current is the flow of electric charges around a circuit.

When you plug something into an outlet, electrical current flows to the object to make it work.

An electrical insulator is a material that inhibits the flow of electric charges.  

Common examples of electrical insulators are plastic, rubber, and glass.

Electrical insulators wrap around many household cords to contain electrical current and protect you.

An incomplete circuit is when some part of the circuit is open or not connected.

While your light switch is in the off position, the circuit is incomplete.

An insulator is a material that does not allow the passage of electricity, heat, or sound.

Did you know?

Your winter coat acts as an insulator for your body heat.