Wow

Slides !Hey Guys should I go on this slide?

Yes

Zoooooooooom,Ouch ,it is very hot

It is burning

I don;t know what's wrong with it?

Should I that one?

Hmmm

Zooooooooom

Wow ! You are having Fun. Yes

But something is wrong with this slide! This is very hot.

Oh this slide is made of metal.

It is a good conductor of heat.It takes heat from the sun and

transfers the heat to anyone who touches it.

But sun rays are falling on this slide too but it does not feel hot

Look closely,it is made of different material.

It is called plastic.It does not absorb or transfer heat..

Ohh.So few materials absorb and transfer heat

But others don't .Yes ,you're right.

Few materials like metals

let heat go through,these are called conductors.

so this slide is made of metal,it lets the heat go through it.

so it is conductor.

Yes metals are good conductors of heat.And this slide is made of plastic

it does not let the heat pass through it.

it is not a conductor .Yes ! Some materials don't allow the heat to pass through them

These materials are known as insulators.

Hmmm,conductors and insulators

Guys ! Do you understand it? Can you show me more examples?

Let's check those benches. Touch it carefully.

Ouch! It is hot.

Can you what material it is?Oh this material should be metal!

That is why it is letting heat pass through it.It is a conductor of heat. .

Hmm,you're right. This bench is made of metal and metals are good conductors of heat.

Ok.Now let's go to the other type of

bench.I am not going to touch it, i don't want my hand to be burnt.

Ok ok.Let me touch it.

See nothing happened.

You can also try.

Hmm,it is not hot.The material of this bench seems to be made up of some insulator.

Yes ,this bench is made up of wood.

And wood is an insulator.It does not the heat go through it.

So guys! now we know all about insulators and conductors.

Hold on guys,there is something more. Now what is that?

There are electrical conductors and electrical insulators also

Electrical conductors and electrical insulators !

What are those?To learn about those,we need to go home.

Wow ! Is this an electric circuit?

Yeah,but it is incomplete. Oh ,that is why the bulb is not lighting up!

For that ,we need to complete the circuit.

You said it right.You are a genius boy.

Let's try to complete the circuit with the things lying here.

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