03/10/2012 Newsround

Afternoon everyone. Newsround has arrived on BBC One with Leah and

Joe. We have another action-packed show, and here's the proof:

We find out what's powering the fastest thing ever on four wheels.

And we carry on Space Week by cranking up the heat on the biggest

star in our universe. First up we're talking school

dinners. A few years ago, the celebrity chef, Jamie Oliver,

started a big campaign to try to make them more healthy, but there

are worries they're still not as good as they should be. Now, the

Government is sending the people behind fast food health chain Leon

to schools to check if you guys are getting the right things for lunch.

Hayley's been to a school that's undergone a revolution in healthy

cooking since the summer, with salads, fruit and all sorts of

other good stuff on the menu. But it doesn't mean they still can't

enjoy the odd treat. It is lunchtime here at this primary

school in North London. On the menu today we've got burgers chips and

beans, vegetable pasty, jelly or fruit. Most of the kids today have

gone for burgers and chips, but it's a Friday. What have you had

for dinner today? Burger and chips. I had chips, a burger and some

beans. How was it? Really nice. There are figures out there,

according to Government figures just under half of kids each one

portion of fruit a day but over half of schoolchildren eat some

fried or cooked food like pizzas and burgers every day. It is up to

this guy to do something about that. This is John, the man from Leon,

who is on a mission to make meals happier. We've been forced into a

position of creating I guess a plan for how we can get more kids eating

great food. The other thing is to try to make school food exciting

for kids. Make sure they don't have to queue for long and that the

dining rooms are attractive. Jamie Oliver did this four years ago, why

are you having to do this again? Jamie publicised some of the

problems out there and started to make people realise that it is

possible for kids to eat better. What we now need to do is take it

from where it is, which is better than it was and make it better

again. Many people are saying you are not going to do anything with

it, what are you going to do? make a good point. We don't want to

delay anything. We want to make it better straight away. Over the next

year John promises to keep news the loop. On Newsround we hear that

kids care a lot about the food they eat at school. Would you be able to

keep us up to date with your findings and your action plan over

the next year? We would be delighted to do that. It's a big

part of what we hope to do. Well, we want to hear what you

think of your school dinners. Do you want healthier options, or

would you be upset if things like chips were taken off the menu

completely? Loads of you have been Next up, we're halfway through our

special space week on Newsround, where we're finding out about the

most interesting stories in the universe. Today we're talking about

the one thing we most definitely couldn't live without - the Sun.

It's going through some massive changes, so I've been to meet the

people trying to understand what's happening, and predict what it'll

mean for all of us in future. Our Sun, a huge chemical factory

burning at 15 million degrees Celsius. It is 93 million miles

away, but without it we wouldn't be here. For our an c'est overs it was

seen as a God, bringing light and warmth to Earth. Even today people

travel to Stonehenge in Wiltshire to worship the star. Our

understanding of the Sun has progressed thanks to NASA's

observatory. But at the moment something's happening to our star

and scientisting like Liz have noticed big changes. Tfrplgts Sun

has an 11-year cycle. Every 11 years it gets a lot more active.

There'll be a lot more sunspots. These are a sign that the Sun is

moving around a lot more. It throws out huge amounts of particles. They

can damage satellites. They can affect computers and power lines.

They can stop your television transmission. Predicting and

preparing for these events is really important. That in mind the

European Space Agency are in the middle of their most daring noigs

the Sun yet. The solar orbiter be launched in 2017. It will cost

hundreds of millions of pounds but get scientists closer to the star

than ever before. Surely it is going to melt? The top of the heat

shield are get to over 1,200 degrees Celsius. That's twice as

hot as an oven. A maximum of 50 degrees assessies. And that will

protect the electronics become there? Yes it will. Some cameras

will look at the surface of the Sun. Others will concentrate on the

atmosphere and a couple will look at the extended atmosphere. The Sun

will continue to burn for 5 billion years ago. There are lots of

unanswered questions about how it affects Earth, but most of us will

carry on enjoying it regardless. The Sun is one of which 200 billion

that make up our galaxy. It is nice to think that somewhere out there

is one just starting its cycle. And don't forget to tell us what

area of space you think we should be exploring next over on the

Newsround website. We'll be revealing the results of our big

space survey on Friday. Next, it's a big day for fast cars.

And we're talking really fast cars. Bloodhound is a rocket-powered car.

The British team behind it say it's faster than a bullet. They've

designed it to reach speeds of more than 1,000 miles per hour - enough

to break the land speed record by 2014. And today they're giving it a

test drive for the first time. Nel went to meet the engineers who

created it. If successful, this is what the first car to reach 1,000

miles per hour will look like. The guys behind the Bloodhound are

confident that it is fast. This car is faster than a bullet. Will it be

the fastest horizontal thing that has a man in it. It breaks the

airspeed record as well as the land speed record. That record was

broken three years ago in North America. This is going 300 miles

per hour faster than Thruster went. This will be unbelievable. On

Wednesday what we are doing for the first time is firing the rocket

system in one go. We are using pumped liquid into the rocket.

That's amazing in itself. Bloodhound has the same engine as a

jet fighter. Will it be driven bay pilot and will look like kit fly to

the Moon. But keeping it on the ground is one of the biggest

challenges. You have to try and stop the car from flying, which is

never a good thing. It has four wheels all in contact with the

ground. They must stay in contact to get a record, let alone keeping

our drivers safe. The attempt to hit the 1,000 miles per hour mark

won't happen until late next year, something everyone is only too

aware of. I'm sure we've got the best car but competition is what

makes this exciting. We've got four other credible computers. Two

American, one Australian and one from New Zealand. We want to get

the record for Britain. To do that the engine needs to work perfectly.

That's why today's testing is such a big deal.

Would you like to drive that? would be terrified.

Finally, ever wondered what happens when you flush the loo? A water

company in Poland has created an app that lets people in one town

follow the passage of their poo! They say users can even compare the

speeds at which it travels through sewers. It's supposed to get young

people interested in the sewage systems. I'm not sure it's going to