Electric present is the flow of electrons with a completecircuit the conductors. That is supplied to power every little thing from our lamp to ours trains.

You are watching: In order to make an electric current flow it is necessary to have

In this activities, students will explore different kinds that circuits and also investigate what is compelled to do a complete circuit.


Electrons ~ above the GoBuild a CircuitConducting CurrentsLemon BatteryLighting irradiate BulbsConductivity TesterBurglar AlarmSteady Hand Game

Playful Circuits: put the arts in STEAM

Learn an initial how to cable a simple circuit, then heavy steam ahead to incorporate art materials with the circuit and also create an electric birthday card, party hat, or other seasonally-themed item.

Paper Circuits: Copper tape circuits and electric cardsSquishy Circuits: Conductive Playdough connectionsSewn Circuits: Conductive thread and light-up bracelets


explain the components required to complete an electric circuit.

Demonstrate the various ways to finish a circuit (parallel or series).

Identify how electricity is provided in family appliances.

Describe the relationship in between an electron and also current electricity.


see individual activities for materials.


Electricity is provided to operate your cell phone, power trains and ships, run your refrigerator, and also power motors in equipments like food processors. Electric energy should be readjusted to other develops of power such as heat, light or mechanical in stimulate to be useful.

Everything we see is made up of tiny little parts called atoms. The atoms are made of also smaller components called protons, electrons and also neutrons. One atom usually has actually the same variety of protons (which have actually a confident charge) and also electrons (which have a an unfavorable charge). Periodically electrons deserve to be moved away from their atoms.

Electric current is the movement of electrons with a wire. Electric present is measured in amperes (amps) and refers to the variety of charges that move through the cable per second.

In order because that a present to flow, the circuit should be closed; in other words, there have to be an uninterrupted path from the strength source, v the circuit, then back to the strength source.

Parallel Circuit (top)


Series Circuit (bottom)

Voltage is sometimes called electric potential and is measure up in volts. The voltage between two point out in a circuit is the complete energy required to relocate a little electric charge from one suggest to the other, split by the dimension of the charge.

Resistance is measured in ohms and also refers come the pressures that protest the circulation of electron present in a wire. We have the right to use resistance to our benefit by transforming the electrical energy shed in a resistor right into heat power (like in an electric stove), light power (a irradiate bulb), sound energy (radio), mechanical energy (electric fan), or magnetic power (an electromagnet). If we want present to flow straight from one suggest to another, we should use a cable that has actually as small resistance as possible.

A neat analogy to aid understand these terms: a system of pipes pipes.

Voltage is identical to the water push that pushes water out right into the pipeCurrent is indistinguishable to the price of the water flowResistance is type of prefer the pipe width – the thinner the pipe, the higher the resistance, and also the harder it is because that the water the flow through.

In this series of activities, students will experiment v wires, batteries, and switches to develop their own electrical circuits, when learning about voltage, current, and also resistance at the very same time.

Fun fact!

You may notice that the signs for several of the SI systems (International mechanism of Units) in this lesson plan are capitalized, such together the volt (V) and also the ampere (A), together opposed to the persons you’re provided to making use of (m, kg). It is legacy to usage a capital letter once the unit is named after a person. In this cases, the systems were named after Alessandro Volta and also André-Marie Ampère. The unit because that resistance was likewise named after a human being (Georg Simon Ohm), but uses the symbol Ω which to represent the Greek letter omega. This rules are crucial to follow due to the fact that the lower- and uppercase letters might represent various units, such as the tonne (t) and the tesla (T). The one exception is the it is agree to usage L because that litres because the letter ‘l’ is often puzzled for the number ‘1’!


ammeter: one instrument provided to measure the electric existing in a circuit; the unit of measurement is amperes or amps (A).circuit: A path because that electric current come flow.conductor: A substance consisted of of atom which organize electrons loosely, permitting them to move through it an ext easily.electric current: A continuous flow of electrical charge relocating from one ar to another along a pathway; forced to make all electrical gadgets work; measured in amperes or amps (A).electrochemical reaction: A reaction that most often entails the carry of electrons between 2 substances, either caused by or accompanied by an electric current.electrode: A conductor v which a present enters or leaves an item or substance.electron: A subatomic particle that has actually a an unfavorable electrical charge.insulator: A substance comprised of atom that organize onto electrons an extremely tightly, therefore not allowing electrons to relocate through very easily.parallel circuit: A type the circuit that permits current to flow through parallel paths. Electric present is split in between the various paths. If light bulbs are connected in a parallel circuit, and also one the the bulbs is removed, the existing will quiet be able to flow to light the various other bulbs in the circuit.semiconductor: A substance comprised of atoms that hold top top electrons with a strength between that that a conductor and that of an insulator.series circuit: A circuit in which every one of the components are connected along a single path, so that the same present flows through all of the components. If one of the light bulbs is removed, the circuit is broken and also none the the other lights will work.voltage: The potential difference between two clues in a circuit, such as the positive and negative ends of a battery. The is often described as the “push” or “force” the the electricity. The is possible to have voltage without existing (if the circuit is incomplete, for example, and the electrons can not flow), but not possible to have a current without voltage. That is measured in volts (V).

See more: A Guide On How To Clean Meth With Acetone, How To Remove Cut From Ice

voltmeter: one instrument offered to measure the potential electric difference between two points in a circuit.

Other Resources

BC Hydro | power Smart for Schools

BC Hydro | Exploring basic Circuits

BC Hydro | Exploring series and Parallel Circuits

BC Hydro | electrical Safety

How Stuff functions | just how Light create Diodes Work

To purchase Christmas tree mini-light bulbs: residence Depot, Canadian Tire

To purchase little teaching light bulbs (with a rating the no more than 2 volts each): Boreal Science