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.

Everyone should stay home as much as possible to keep the coronavirus from spreading, but sometimes we have to go out for essential errands. What are some items to have on hand when we go out? Sigrid talks about five of them.

For so many of us, life has changed radically. We've had to learn new habits because of the coronavirus pandemic. Here are some of the changes we are having to make.

Sigrid concludes this "personal journey into the unknown" with optimism about harnessing creativity in order to live a more fulfilling life with Alzheimer's even though it might not slow it down. We have to live in the present!

A year has gone by and Sigrid is back in Tacoma to spend time with her sister, Sylvia. Things have changed quite a bit, and Sigrid shows us Sylvia's new setup.

The two sisters talk about how important singing was for them growing up and Sylvia sings a little bit, too. This is their final appearance together on video before Sigrid's departure the next day.

Sigrid and Sylvia converse in the kitchen over coffee. They talk about coffee, about the city of Tacoma, about their month together, and about what they see out the window. Sylvia enjoys making sound effects with her voice every now and then.

Sigrid and Sylvia continue to work on making coffee. Meanwhile, they talk about what time of day they like to drink it and what they put in it.

Sigrid and her sister Sylvia hang out in the kitchen talking about coffee and making some, too. At times, they get a bit silly.