Hello scientists.

My name is Mr. Wilshire, and today we are going to be having a look at components in an electrical circuit.

Let's jump into this electrifying lesson.

The outcome of our lesson today is to identify and name some basic components in a simple circuit.

We've got some keywords that are gonna come up all the way through the lesson.

I'm going to say them and I'd like you to repeat them after me.

My first word, electrical.

Great, second word, circuit.

Well done, next word is component.

Good job, and next we have identify.

Very good, and finally, device.

Well done, now here are some of the keyword definitions.

This is what each of these words mean.

Now you can pause the video here and have a little look if you like, and these words are going to come up and be described all the way through the lesson.

So don't worry if you're not too sure what one of them means.

Let's dive straight into the lesson then.

The first part of our lesson is electrical circuits.

Now Laura has heard people talking about electrical circuits, but she's not too sure what they are.

Here's Laura, I wonder if you know, have a discussion with somebody next to you.

Pause the video and continue when you're ready.

Laura says, my rugby coach tells us to run a circuit around the large field, but I don't think that's the same as an electrical circuit.

I wonder what discussions you had, and if you agree with Laura, maybe some of you are rugby players or do some other kind of sport that involves you running a circuit as well.

I think she's right though.

It's definitely not the same as an electrical circuit.

Let's find out more.

An electrical circuit is a closed loop or a path that electricity can flow through to make something work.

What, like making water work? No, that can't be right.

Jacob here says, running a circuit around the rugby field could be similar because you're moving in a loop.

Oh, that's what they mean.

You often start in the same place as you finish, right.

And Laura says the word circuit sounds a bit like a circle.

Yeah, so that will help me to remember that.

So an electrical circuit is a closed loop.

That means that there's a circle with no beginning and no ending.

It's just a continuous circuit.

Electricity and circuits are just about everywhere and they're part of most of your daily lives.

Well, yeah, they are, I've definitely got a TV and I drive a car and yeah, if we didn't have lights, we wouldn't be able to see things.

From the electrical wiring in your home that allows your lights and TV to turn on to the system that starts your car, there are circuits everywhere that allows electricity to safely flow all around us.

Yeah, that's right.

Electricity isn't really something that you can get and you can hold.

Is it? In fact, electricity is very, very dangerous.

We need to be very careful around it.

But an electrical circuit is something that helps the electricity flow and to help things to work.

So let's stop and think here.

What do you think, which of these everyday objects are part of an electrical circuit? There's a neon sign, there's a dripping tap, and there's a candle, pause the video and restart when you've had a discussion.

Hopefully you've been able to have a decent discussion about these different pictures here.

So what did you come up with? The answer is A, a neon sign is part of an electrical circuit.

We don't really want to mix electricity and water.

That would be very dangerous and unless that candle's flame is made of an electrical appliance, I don't think that uses electricity.

Now Laura wants to make an electrical circuit.

Jacob tells her, well, some electrical circuits are very complicated, so I suggest that you start by making a simple one.

He's right really, because they can be very complicated.

I might be able to put some wires to a light bulb, but I then wouldn't know how to get electricity to it.

You can't just get electricity out of thin air can you? Laura asks them, well, what equipment do I need to be able to make a simple circuit? I wonder if Jacob is able to help her, have a think as well.

Can you help Laura? Pause the video, have a discussion about the kind of equipment that you're going to need to make a simple circuit.

Hopefully you were able to have some decent discussions and come up with some ideas and maybe even an equipment list.

Electrical circuits are made up of different parts.

The parts in a circuit, Jacob said are called components.

Now some components in a simple circuit are things like a cell or a battery, some wires.

Oh yeah, we mentioned those earlier, didn't we? A bulb, yeah, you'd be able to see things then, a buzzer, that sounds noisy, and a motor.

Oh, so you can make things move with a circuit too.

Of course, we looked at a picture of a car earlier, didn't we? Do you know what these components look like? Can you identify and name them? Well, here's your chance to have a go.

Do you know what these components look like? Can you identify and name them? Maybe there are some components in your home or maybe even in your classroom that you are working in.

Have a discussion about the type of components they are and if you can find them in your day-to-day life.

Pause a video and continue when you're ready.

Hopefully you've had a good discussion about the types of components that are included in an electrical circuit.

Let's continue with the lesson and find out a bit more.

Now, Jacob shows Laura one of the components.

She's a bit confused by its name.

I wonder what he's shown her, Jacob says this is a cell.

Well, I thought a cell was one of those little boxes that you get in some software when you are using a computer.

Laura says, well, we've got these in my house and they're called batteries, not cells.

What do you think, are either of them correct? Have a discussion and then restart the video when you're able.

I wonder what you discussed and whether you agreed with Jacob or Laura or whether they're both correct.

Well, yeah, they are both correct.

In day-to-day life, we call these batteries, but in science, the meaning of that word is slightly different.

Look, I've got a battery here that I use when I need to use a TV remote or when I need to tell the time, it would go in one of my clocks.

In science, if you've got one of those, it's called a cell.

But if you've got two or more cells working together, you call it a battery.

Ah, I see where they're coming from now.

So you can combine those different parts and then it's a battery, here is a cell, just one of them all by itself, then it's a battery.

I suppose that would be useful, wouldn't it? If you were a scientist and trying to work out the voltage that you needed to send through a piece of equipment, you would need to know how many cells to include and whether or not you needed to use a battery.

Let's pause and think.

What are the basic elements of an electrical circuit called? Is it objects, appliances or components? Have a discussion and restart the video when you've decided.

Are you ready for the answer? Let's have a look.

The answer is components.

The basic elements of an electrical circuit, they're called components.

I wonder if you can remember what some of those components were.

So here is task A where all of that knowledge is hopefully going to come in handy.

Laura's mom has some basic electrical components in her toolbox.

She lays them out on the table for Laura to look at with her.

Look at the images on the next slide and try to identify a name each component.

Don't worry if you don't recognise some components, just try to match each one with the correct name, right? Well, let's dive in and have a look.

Look at the images and try to identify a name each component.

There's number one, number two, number three, number four, and number five.

Now, I'm sure you've seen some of these before.

Use the keywords on the side there and decide which word matches which numbered picture.

Pause the video and restart when you are completed.

Okay, let's dive into some answers then.

Jacob says, I think this is a buzzer because it looks like a little sound box.

I can see what he means there.

There's tiny little grills in the front there.

In fact, I've got one here and mine's exactly the same.

Look, there are tiny little grills in the front.

Little bit like you get on the front of a car sometimes.

Now Laura says, ah, this is a bulb.

It looks like a mini version of the same bulb that's in my bedroom.

Yeah, well, I've got one very similar to that here.

Can you see? It's very tiny, isn't it? She also says, I think this is a motor because it looks like this part of might spin.

Yeah, she's right there.

This is a motor, can you see it on the camera there.

It's got a little bar at this end and a big silver drum.

And then on the other side there are the connectors where you can connect the wires.

Now sometimes those motors can spin and move around and even make things to fly, a little bit like this one that's connected to a propeller there.

So here's the full list of answers.

One was a bulb, two was a motor, three was a buzzer, four was a wire, and five was a cell all by itself.

Can you remember that a battery is something that's made up of multiple different cells.

Hopefully you were able to spot at least one or two of those that you knew, and maybe there's some there that you've never really seen before or never had the chance to use before.

Let's move on to the final part of our lesson.

This is called naming components.

Okay, Laura wants to make a simple electrical circuit to make a bulb light up.

She needs to choose some of the components from her mom's toolbox, but she's not sure which ones.

I wonder if you can help.

I wonder what things she's got in there.

To make something light up, well, she's going to need a bulb if she needs to make it light up.

I wonder if she's going to need a motor to do that as well.

Let's have a look at some of the things that are in the toolbox.

Here they are.

There's a cell, a bulb, a wire, a buzzer, and a motor.

So which parts of these is she going to need to make the bulb light up? And I wonder, is she going to need more than one of some of them? Will she need more than one cell to make a battery? How many bulbs is she going to need to make it really bright? Or how many wires will she need to attach to her circuit? An electrical circuit must have a source of electricity.

Of course, we talked about this a bit earlier, didn't we? So we need to make sure that there's some electricity flowing through the circuit.

Jacob says, A cell or battery pushes the electricity around the circuit and there is a picture of some different cells that you can get.

There's a very, very big battery there, that looks like it has lots of power inside.

There's a much smaller battery, like a smaller version of that one next to it.

Then there's a battery next to it.

I think I've seen those use lots of time in different types of equipment that we use.

And then there's a slightly smaller version of it as well.

And then a button battery as well.

That's a small circular one on the end.

Some cells can provide a bigger push than others, I wonder which one of those is gonna give a bigger push.

Do you think the biggest? An electrical circuit must have wires.

Jacob says, electricity flows through the wires around the circuit.

Of course, yes, you need wires in a circuit or otherwise the electricity can't flow.

There's no good having a bulb and a cell sitting there not doing anything.

That wire has got some crocodile clips on it, little bit like this one here.

Can you see on my camera? And it opens and closes so you can clamp down on the item that you want to provide electricity to.

Wires are made of metal and then they're covered in plastic.

I wonder why they're covered in plastic.

Do you know why? Some wires have got little clips on the ends and they're called crocodile clips.

Ah, just as I showed you just now, covering the wires in plastic is going to help make it safer, isn't it? I wouldn't want to touch the wire if it was going to give me an electrical shock.

An electrical circuit must have a device.

A device is a component.

It needs electricity to work and is made for a particular purpose.

So a bulb or a buzzer or a motor, they can be made to work by providing electricity in a simple electrical circuit.

Of course, yeah, the bulb isn't just going to work by itself.

In fact, in some cases, you're going to need to put the bulb in a special mount, a little bit like the one I'm showing on the camera here.

Then you have a buzzer and a motor that can also be clipped onto a circuit to make things work and make things move or make a loud noise.

A bulb gives us light, a buzzer makes a sound and a motor makes something turn or spin.

Laura identifies these components from the toolbox.

Laura says, I've chosen a cell, some wires and a bulb.

The cell provides the electricity for the circuit, good.

The wires will allow the electricity to flow through the circuit.

Yes, and the bulb is a device that needs electricity to flow through it to work.

Excellent, let's stop and think.

Which of these components provides the electricity in an electrical circuit? Is it a wire, a cell or battery, a buzzer, or is it a bulb? Have a discussion and restart when you're ready.

The answer is a cell or a battery.

That's where the electricity is stored, isn't it? We're able to recharge batteries to make sure that we use the same component again, or we might need to buy new ones.

Let's stop and think again.

Which of these items does a simple electrical circuit need to allow the electricity to flow between components? So how is electricity getting from one thing to the other? Pause, have a discussion and restart when you are ready.

The answer here is a wire.

You would need to connect everything up with wires to make sure the electricity can flow through it.

Last chance to stop and think.

These are all devices which need electricity and they can be found in simple electrical circuits.

Can you match the images to the names? Well have a read, have a look and restart the video when you are complete.

Here are some of the answers, there look, number one is a bulb.

Number two is a buzzer, and number three is a motor.

The motor can make things move.

The buzzer can make lots of noise and the bulb can make things bright again.

Here's the final task of our lesson.

You need to make a card game here to help you identify and name components in a simple electrical circuit.

So you need to make a set of cards that show first of all what each component is called.

So you need to write down its name, what each component looks like.

You need to draw some drawing there and what each component does in a simple circuit.

So you need to write a sentence as well to make it clear.

Then you should end up with three cards for each component.

So if you're writing about something that makes things brighter, you would need to write its name, draw the picture, and then write a sentence about it as well.

Then you're going to cut out the cards, shuffle them up, and match them up correctly.

I wonder if you can do this in a way that a partner or someone else that isn't too sure in electrical circuits would then be able to go ahead and link them all together.

Best of luck, pause the video and restart when you are ready.

I hope you enjoy creating your own card game.

I've got some examples here of what yours could have looked like.

There's a motor at the top there as a little drawing of a motor too.

It says a motor is a device that spins and needs electricity to work.

Of course, yes, a bulb.

A bulb is a device that makes light and needs electricity to work.

I'm seeing a common theme here, and a buzzer.

A buzzer is a device that makes noise and needs electricity to work.

Excellent, the wires allow the electricity to flow through the circuit, and a cell pushes the electricity around the circuit.

And can you remember what a cell makes if there's two or more of them? That's right, it's a battery.

Yours might look a little bit something like this, or maybe you put a bit more detail into your drawings.

Whatever it is, I'm sure you've created a fantastic card game.

So let's summarise our lesson, shall we? The basic elements of an electrical circuit are called components.

A simple electrical circuit has to have a source of electricity such as a cell or a battery.

A simple circuit has to have wires for the electricity to flow through, and a simple electrical circuit has to have a device such as a bulb, a buzzer, or maybe a motor.

They all need electricity to work.

Well, I hope you really enjoy learning about different electrical components and how you can make a circuit.

Maybe in the future you'll be able to go on to design some circuits that do some incredible things.

At the moment, just making a light bulb work or a buzzer work might seem fun, but who knows? You could turn that into anything in the future.

You may have become your own toy maker.

It's up to you, I've been Mr. Wilshire.

Thank you very much for listening.