Kitesurfing artists show their stuff and perform very impressive and flawless techniques at their favorite spot. Video provided by Naish Kites

The trailer for this documentation shows the mistreatment of sharks by humans. We are reminded that sharks also form a part of nature and as such play an important role and need to be protected.

Cabrinha Kites takes you snowkiting in the UK and kitesailing at the “Core Slider Jam” in Western Australia.

Let's look at how Long Island was formed around 20,000 years ago. It has to do with a glacier that brought plenty of material along with it and left some behind when it receded.

Let's have a look at which countries are members of the European Union and where they are on the map.

Sigrid explains how a spelling bee normally proceeds. There are fixed rules and there are options.

Let's find out more about an American activity aimed at school kids: the spelling bee. What is it and how does it work?

Sigrid talks about "The Elementary Spelling Book" by Noah Webster, which was the basis for the American English dictionary and a big part of the development of spelling bees in the United States.

We keep seeing the "Black Lives Matter" slogan all around — what's it all about? Well, it's a long story. Here's part of the story in a nutshell.

What a time to be learning English! Things are happening quickly in the United States and history is being made right now, so don't miss out on the words and expressions you need to know.