Episode 14

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Hello.

(SNORES)

Hmm.

Huh?

Look.

Ha-ha! Yeah!

Hmm.

Oh! Ooh!

(GASPS) Huh?

Look!

Ah!

I'm Sally.

And I'm Possum.

BOTH: Hello!

(HUMS)

Oh-ho! Hello, Possum.

Come on in.

Ha-ha-ha.

Ha-ha.

Hey, great.

Great.

Oh, hello, everyone.

Hello, everyone!

I'm here to see Skip, because I want

to see his marble run.

So, Possum. What brings you here

so early in the morning?

Well, see my things here?

I've had a few ideas, but I'm stuck,

and I need some help,

so I thought your marble run

could give me some ideas.

Well, everything's been going

very well,

and today could be the big day.

Oh! Does that mean

it's a big, exciting day?

Yes. I think this could be the day

we get the marble run to work.

Oh, great!

Oh, hang on, Sally's here.

Oh!

Hello.

Hello.

Oh, hello, everyone!

Oh, Skip, Possum was so excited

about your marble run.

I am too.

Sally, Skip says

he's almost finished.

Oh, that's great!

Yes, everything's just about ready.

I've just got one little problem.

This ball should be

rolling down there.

But it's getting stuck

and I don't know why.

It's really puzzling me.

Oh, Skip, I could help you.

I can just pick it up and move it.

Yeah, well... (CHUCKLES AKWARDLY)

Possum, do you think Skip would feel

that he had solved the problem

if you had to carry the ball

over the gap?

Ah. Hmm. You're right.

Skip will be a bit disappointed,

wouldn't he?

The ball should just roll down

by itself.

Gravity should make it go.

If I stop that, it won't work.

You're right, though -

gravity is what's at work here.

If you have a look, the ball

is being pulled down by gravity.

Oh! But how does it start?

Because I know

when I've got my soccer ball,

it doesn't start rolling by itself.

I have to kick it to make it move.

That's right!

You need something to make it move.

Yeah. That's right.

It's me, pushing it.

Correct. You are using force.

If you kick it hard,

it's going to move fast,

and if you just gently tap,

it's not going to go very far.

We're talking about a trigger,

or a switch.

And that's what makes it start.

The trigger on this

is a little lever.

The lever goes down,

and the next marble starts to roll.

Oh.

You've given me some great ideas,

Skip.

Now I think I know

what I need to do!

Oh, yes.

Sometimes it can be hard to solve

the big problems,

so if you solve

the little problems first,

that can make it easier

to solve the big problems.

Oh, yes, you're right!

I just have to think things through.

Yes, it's very important

to think creatively,

and then you can pick the good ideas

to make it work.

Oh, this is great.

I can see some wonderful ideas,

I can see how that part goes,

and then that makes that happen

next...

And then it's finished!

That is called a chain reaction.

Aye-aye, Sally! You're right.

Because one action makes the next

action happen, and on and on.

Sally, what does that mean?

Oh, well, a chain reaction is when

one action starts the next action,

and that one starts another one

after it, and so on and so on.

Oh!

How about I show you?

OK.

You stand in the middle, Possum.

Yep.

OK, straight line. I'm going

to start this by pushing you.

Ready?

OK.

OK.

Boop!

Oh.

Oh.

(LAUGHS)

Oh!

Oh.

Ooh!

(LAUGHS)

Oh! Whoa!

(LAUGHS)

(LAUGHS)

(LAUGHS)

Oh, I get it now.

Great.

Why don't we watch some children

learning about chain reactions

using dominoes?

Yeah, let's watch!

(BRIGHT MUSIC)

Oh, wow! That was fantastic.

And that's given me

some great ideas.

I think I know

what I need to do now.

But, Skip, can you show me

how the marble run works?

Right.

Now, Sally, do you think you could

work out how it all starts?

Hm.

Do you have water in this?

Water? Yes, I do!

Right, now, well, something would

fall into this bucket.

That would pull the watering can,

the water would start to trickle,

flow down through here,

into this bucket.

That would fill up,

and then when it gets heavy,

it would pull the string,

and the marble would start to roll.

Oh, great.

Yes, you're spot-on!

Oh, wow!

This is giving me

some fantastic ideas.

Oh, that's great.

And I think I might have

found the solution

to the problem I had earlier.

That's great!

Well, I better get back.

I have a few things I need to do.

Oh, Skip. When can we come back

and look at your marble run?

Hm. I'll let you know

by flashing my light.

If you look from

the top of your tree,

you'll see the light

at the top of my crow's nest.

If it's flashing,

it means the marble run is ready

and you can come over.

Alright, let's go!

OK, let's go.

Bye.

Ha-ha.

Bye.

Aha, yes! Ho-ho!

Aha. Hm. Yes, yes.

Hm.

(HUMS)

Ah. Oh. Yeah. Aha.

(HUMS)

Hmm. Right.

Now... Ha-ha.

Yep.

This one... That...

Ha-ha! Yes.

Right.

I've been watching Possum

working on his experiment.

I can see that he's trying

to work out what to do next.

I think he's trying to make something

like Skip's marble run.

I can see that he's thinking

very hard

and he always comes up with

a creative way to solve a problem.

Sally! Sally! Have a look!

This is my chain reaction.

Ha-ha!

Mmm. Well, you've got some

very interesting ideas here, Possum.

Can you tell me how it works?

Well, I've learnt so much

about levers and the ball rolling

from seeing Skip's marble run.

His is so good.

And I want mine to be great too.

Well, I can see your ramp

and that the ball will roll down it,

so that's great.

Yeah. Skip's marble run was so good,

the way he made it.

So I want to make mine

just as good as his.

Oh.

I can't wait to go and see

his marble run.

Why don't we go there now?

No, Sally, we can't go yet.

Remember, Skip said we have to wait

until we see the flashing light.

Oh, alright.

That means I'll have to wait, then.

Yes, that's right.

Now, let's see.

Hmm. Hmm.

That ball... (GASPS)

Hm.

Ah, I've got it!

I found the solution to my problem.

Ooh, what is it?

Oh, I won't tell you yet, Sally.

But once you see it,

then you'll understand.

Oh, OK, that's great.

Now, I'm going to go

to the top of my tree

and see if Skip's light's flashing.

OK, off you go.

Hup. Ah.

Hmm. Hmm...

Ah. The light isn't flashing.

(GASPS) Ooh!

The light's flashing! Yay!

I'm going to tell Sally.

Sally, Sally!

Skip's light is flashing!

Oh, great! Let's go, come on.

Let's go!

Aha, good, good.

Oh, oh, come in, come in.

Ha-ha-ha. (GASPS)

Oh!

Oh, wow.

It looks great.

Oh, yes.

You've got here just

at the right time!

Oh, yes. We've been watching

your crow's nest all day,

and when we saw the light flashing,

we knew you were ready,

and we ran on over.

Oh, Skip, I'm so excited,

I can't wait.

Can we do it now?

Hm, just a moment, Possum.

Where is my coffee?

Oh, surely your coffee can wait,

Skip.

Can't you show us the marble run?

Oh, no! The coffee

is an important part.

Can you please put this down

just there?

Oh. OK. Hm.

Oh.

That's great.

Right, are you ready?

Yes!

Ready?

Yes!

Right. Come over here.

Now, I pull this to make it start.

Oh. Oh!

Oh, look.

Oh.

Oh.

Oh.

Ooh.

Oh, quick, over here, quick.

Aha.

OK.

Oh, look.

Oh! (LAUGHS)

Look at that one. Oh, and that one.

Oh.

Ah.

Oh, oh, look, look.

Look, over here. (GASPS)

Oh!

Ooh.

Ha-ha-ha.

Whee!

Oh! Oh!

(GASPS) Ooh!

Oh.

Whoa...whoa...whoa...whoa...whoa!

Oh! (LAUGHS)

Yay!

That was great!

Oh, that was so amazing.

Hey.

Oh, Skip, I love the way

you make coffee.

Oh, I really enjoyed making this.

I know it's a bit silly

just for a cup of coffee,

but it was a lot of fun making it.

(LAUGHS)

Yeah.

Oh, it's been a lot of fun

to watch this. I really enjoyed it.

Hm.

Oh.

Wow, and that goes around

and around and around.

Oh, you've done such a good job.

Oh, this is great work. Look at that.

Ooh, ooh, ooh, ooh, ooh...

Oh, thank you.

I think it's the best one

I've ever made.

I love it.

Now.

Skip, Sally?

Oh.

Oh.

Come over here.

Oh, wow. This is so very big!

I didn't make this one.

Did you?

Yep.

What's this for?

This is the trigger.

That is what makes it start.

Oh, yes, I see, it starts it off.

And, Skip, you may pull the trigger.

Me?

But, before you do, make sure you're

ready to run and follow the ball.

Oh, ho, this is very exciting.

Ready? Ha-ha!

Alright! Ready?

Ready.

Ooh, come on, come on. Oh!

Oop.

Ooh! Ha-ha-ha-ha.

Ah! Oh!

(CHUCKLES)

Ho-ho-ho. Ha-ha.

Ha! (LAUGHS)

Hey, hey.

Oh, that was great.

Oh, ho. That was really good.

Possum, you've made

such a wonderful thing here.

It's fantastic!

Ah, yeah!

Oh, yes. You've been very creative

making your chain reaction.

Oh, it is wonderful.

Oh, thank you, thank you.

I really enjoyed this.

It's been such a fun day.

Oh, yes, it was a great day,

wasn't it?

Well, our time is up.

Thanks for watching.

See you next time!

Bye.

Bye.

Bye.

Let's do it again.

Yeah.

Oh, yes - let's go!

Ho-ho!

The marble run

Skip has been working on something amazing and now it is time to see it in action. But Possum has been busy too. Watch carefully!

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