The Flowing Path -- The Electric Circuit
The electric circuit is a continuous path for electricity to flow from one end of an electric power source (i.e. battery) to another. Current (the flow of electricity) will flow from the positive pole to the negative pole of the battery continuously. 

A light bulb will only light if the current is continuous (the circuit is complete). If an electrical wire is cut, the flow of electric current will stop immediately. 

An open circuit occurs when the flow of electricity is interrupted (broken circuit). A closed circuit occurs when the flow of electricity is continuous (a complete functioning circuit). 

The bulb will light when the following 3 items form a closed circuit: 1) wire 2) battery 3) bulb. 

In some instances, the bulb will not light when the circuit is completed. This will occur if the filament inside the bulb (fuse) is broken. This prevents the flow of electricity through the filament of the bulb. 

It is important to have very secure and tight electrical connections when building an electrical circuit. The wires that carry electricity must make very secure contact with the end posts of the electrical power source.

The Control Master -- The Electric Switch
An electric switch is a simple device that can break or complete an electrical circuit. When the switch is turned on, the circuit is closed, which allows for electricity to flow and illuminate a light bulb. 

When the switch is turned off, a small gap is created that interrupts the flow of electric current through the electrical wires (open circuit). You can easily create an electric switch using 2 thumbtacks and a metal safety pin to bridge the gap between the thumbtacks. 

The light will illuminate when the safety pin touches both of the thumbtacks. When you remove the safety pin from touching both thumbtacks, the light will extinguish. 

The electric switch allows us to control our use of electric-powered devices. This saves energy by turning off light bulbs when they are not in use. Electric switches are found in torches, wall-mounted fixtures, and in all electronic devices. Electric switches are the 'gatekeepers' of the continuous electrical power circuit.

Conductors: The Gateway Materials
Conductor - materials that allow electricity to pass through them easily; they are called conductors.

Electricity passes easily through metallic materials like copper or aluminum; copper becomes a conductor, likewise gold.

Therefore, copper wire is an appropriate choice to use as an electrical conductor.

The human body is also a conductor because it can conduct electricity. So, it is dangerous to touch uncovered electrical wiring.

Water is also a conductor of electric current; in addition to your body, another physical substance can be used as a conductor of electricity.

Always exercise caution when using water with a switch or other electrical device. That is, with wet hands, don't touch iron and other metals, as they conduct electricity. 

Conductive materials make up pathways within circuit wiring. This enables the delivery of electricity to bulbs or fans through conductive materials. Without the use of conductive materials, it would not be possible for us to transfer electricity from one location.

All wiring within contemporary homes is constructed using conductive materials.

Insulators -- The Protective Shield

●    An insulator is a material that prevents the flow of electricity through it.

●    As described within the field of science, insulators are materials that do not allow electric current to pass through them.

●    Common insulator materials include rubber, plastic, and wood; each of these three materials prevents the possibility of receiving an electrical shock.

●    Electric wiring is insulated with colored coatings made of plastic, and the handle of a screwdriver is made of rubber.

●    To protect themselves, professional electricians wear rubber gloves while using their hands to turn and to cut electrical wires.

●    As well as protecting electrical connections, insulating materials prevent the flow of electricity.

●    Insulators are equally important as conductors for our health. They keep electricity contained within electrical wiring materials.

●    The dangers posed by the absence of insulating materials would be extremely adverse.

●    Insulating materials are important; they are used to protect electrical connectors and connections and to protect wall switches.

●    Every electrical system utilizes insulator materials to protect other elements within the system.

Staying Safe with Electricity

●    If you are careless about using electrical current, it has the potential to be extremely dangerous.

●    You should never play with wall outlets in your home.

●    If you come in contact with a main power supply, you will be severely burned if not killed.

●    When using electrical cells in your school science projects, you should use the greatest care.

●    When flying kites using the power of electricity outside, be sure to never touch overhead electrical wires.

●    Keep all electrical appliances, including those located close to wet sinks, far from any contact with water.

●    You should not insert metal objects into the wall openings found at the electrical service panel.

●    Care, safety, and caution are the three rules that every young scientist must follow today.

●    As soon as a spark is produced, you should tell an adult immediately.

●    You should only use cords and wires that contain all of their respective insulation coverings.

FAQs: Part 2: 6th Grade Electricity and Circuits -- Electric Circuits, Switches, Conductors, and Insulators

Explain in a few words what an electrical circuit means.
A circuit is a continuous path allowing electricity to flow back and forth from the cell to the bulb, etc..

Explain what a switch does -- State its purpose?
A switch closes (or opens) an electrical gap in wires; therefore, it starts or stops electricity from moving.

What are conductors, and how are they related to electricity?
Conductors are materials that allow electricity to go through them easily. The most significant example of a good conductor is a metal.

Why are wires insulated in plastic, and what makes them safe?
Plastic is a non-conductive insulating material; therefore, it will prevent somebody from being electrocuted by the conductors when they have plastic insulation on them.

Can humans conduct electricity, and what can be the consequence?
Yes, humans conduct electricity fairly well, so when plugging and unplugging wires or using electrical devices, we must be very careful to avoid electrocution.

Summary for Part Two: 6th Grade Electricity and Circuits -- Electric Circuits, Switches, Conductors, and Insulators

●    A circuit is a closed loop of electricity; that is, a circuit has metal that provides a path for electricity
●    Electricity flows from the positively charged terminal to the negatively charged terminal
●    The purpose of the switch is to connect or disconnect the circuit
●    Conductors, or metals, allow energy to flow easily through them.
●    Insulators such as rubber will not permit energy to escape.
●    The human body is conductive; therefore, safety precautions must be taken to prevent electrocution.
●    Plastic coating protects wires from electrical hazards that could result from accidental contact.
●    Safety is the most significant rule in the study of electrical science.

Conclusion:
If you comprehend circuits and their materials, you should be able to comprehend circuits and their components through science. 

If you can do that, you have made it possible for yourself to thoroughly understand what the benefits of electricity are. Also, what must be done so that you remain safe from it?

Importantly, institutions or students who are interested in gaining more knowledge about any particular topic or chapter can get videos or PDF notes created. 

Nobel Learn can do these for them -- creation of PDFs and videos. Nobel Learn can create videos related to the subjects covered in this blog post and many more as per the needs. 

Nobel Learn also has the potential to develop videos and quizzes about the above subjects. These can be based on any standards or individual standards/depositories/schools/individuals.