14/07/2016 Newsround

Good morning, I'm Naz with Thursday's Newsround.

Something BIG is happening beneath the streets of London.

And how this little bear got in and out of this locked car.

First up, a new day and a new Prime Minister.

It's the first full day in the job for Theresa May.

She took over from David Cameron last night and says she wants

to build a UK for everyone. Here's what happened.

We will make Britain a country that works not for a privileged few

That was the moment the new Prime Minister

walked into her new home, 10 Downing Street.

Mrs May has taken over as Prime Minister.

The last person in charge was David Cameron.

He decided to resign after the big vote when the UK

He is one of the youngest prime ministers this country has ever had.

After six years and 62 days in Downing Street, and when you were

probably having your tea, David Cameron said his final words

It has been the greatest honour of my life to serve our country

as Prime Minister over the last six years.

Now, whenever there is a change of Prime Minister or Government,

the person leaving and the one taking over have to go

David Cameron, his wife and children went to Buckingham Palace

to see Her Majesty and officially stepped down from his job.

Theresa May was next to see the Queen and that

She became the new Conservative Prime Minister.

Mrs May left the palace and returned to 10 Downing Street,

where she started picking her top team.

One is Boris Johnson, who many thought would be

Now she is there, she will start work as only the UK's second

Sorting out how the UK leaves the European Union.

But don't worry about Larry, the Downing Street cat, he will be

Next, something BIG is happening beneath the streets of London.

Deep underground the UK is buiilding a giant new underground

Here's CBBC's super scientific reporter Fran Scott on what goes

I'm right in the centre of London at Farringdon station.

And it might look like everything is normal here but beneath my feet,

the biggest building project in Europe is going

The massive project to build this new train line for London

And in the summer of 2012, while London was hosting

the Olympics, massive machines started digging.

It has taken well over 20,000 workers, over 100 million hours

of work, and they've had to move millions of tonnes of mud

The digging finally finished right here, where the tunnelling machine,

called Victoria, broke through to reach this -

what will become the new Farringdon underground station.

Now, they're working on getting seven new stations ready to open

So, how do you go from this...to this?

Chloe is one of many engineers working to make that happen.

So, an essential part of any railway is the actual track.

We're going to lay ours right here where we are walking.

So we won't be able to walk here in the future?

No - trains will be running through this tunnel,

picking up passengers and taking them to their destinations.

Chloe, this looks incredible. What is it?

This is a temporary shaft, it won't be part of

We use them during construction to bring materials in and out

quickly and safely. You just crane them in?

Yeah, pretty much. That's brilliant!

This is one of our escalator tunnels here at Farringdon.

What you can see now is the final concrete lining being put on top

This will eventually be one of the access points into the tunnel.

There are lots of parts that make up a working station,

but this one will not be ready for us to use for another 2-3 years.

Which is a good job because there are still lots to do.

To footy - and could this man be the next England manager?

He's Sam Allardyce, current manager of Premier League club Sunderland.

If the English Football Association like his grand plan -

he'll pick up from where Roy Hodgson left off -

after England were knocked out of Euro 2016 by Iceland.

But Sunderland say they want their manager to stay.

Do you think Sam the right man for the England football team? Let us

know what you think. Jo Pavey will compete in her fifth

Olympics Games this summer after being selected to represent

Team GB at the Rio. She's 42 and will be

the oldest British woman Some people in Colorado in America

are used to seeing grizzly bears, but somehow, THIS bear

managed to lock itself in a car, despite not

breaking any windows... Don't worry, though,

the bear was unharmed. That's all from me, Newsround's

back this afternoon.