CBBC Newsround

Leah investigates why there have been so many tornadoes in America this year.

The RSPCA think it's great that loads of people try to look out for animals - but they are warning that sometimes people are too quick to try and help.

Inventors in Japan have come up with electronic cat ears!

A 13-year-old boy is set to make thousands of pounds from a door-answering gadget.

Ore reports on the row over the impossible exams

Ore reports on how vaccinations can help children around the world.

Sonali reports on the search to try to find the bodies of those who died in World War I.

Two spacecraft that launched in 1977 are just about to leave our Solar System. Ore's got the story.

New US X Factor judge Nicole Scherzinger has said that Simon Cowell taught her how to be a judge.

Thousands of children are being locked up in prison cells in England and Wales every year, says a new report.

Forget Rafael Nadal, we've set Andy Murray and his brother Jamie the ultimate challenge - tennis spelling bee!

Reptiles that survived a huge heath fire in Dorset have been getting help from volunteers, as Ricky's been finding out...

Imagine this - you're showing off your top new racing boat to the world when disaster strikes and it capsizes!

We talk to an expert about the highs and lows of looking after little elephants.

Leah catches up with Horrible Histories stars Martha Howe-Douglas and Laurence Rickard.

Harry Potter fans, the final trailer for Deathly Hallows Part 2 is here!

John's got the story on the rhinos being killed for their horns.

Children in the Amazon are torn between their love for where they live and their families need to survive by chopping down the rainforest.

The planet's oceans are in a much worse condition than thought, say top scientists.

Astronauts are testing out their gardening skills by trying to grow plants in space!

Leah finds out what happened to the hundreds of animals abandoned after a nuclear emergency in Japan.

The Harry Potter author has created a Harry Potter world online.

The American president has announced he's taking his troops out of Afghanistan - faster than was expected. Leah's got the story.

Experts think they've worked out why the king of the dinosaurs had such tiny front legs.

The government's said it's going to look again at whether animals should be banned in circus acts.

A four-week-old kitten was rescued by firefighters after it got stuck in a pipe.

It's 100 days since British and other international forces began bomb attacks over Libya and the war is still going on.

Press Packer Saoirse on the latest attempts by the record comapnies to make sure we're all downloading music legally.

Blue Peter is moving home - so here's a look at some memorable moments over the years.

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