It’s time to prepare for her weekend in Amsterdam. Our friend packs her clothes, toiletry bag, things to read, and a few other essentials. Will she need an umbrella?

This lucky girl has her birthday next week and is planning a trip with friends. She plans a train trip through France and Belgium, and books the perfect hotel in Amsterdam. She has lots of ideas for things to see and do in the city, and some new food she wants to try.

The travel kids visit a town almost completely covered by volcanic rock some twenty years before. There’s not a great deal left of it for them to see! They walk out onto the glassy and slippery surface of the lava flow, where volcano expert Ken takes a sample of some liquid rock to measure the temperature. It’s super hot, and Julian makes the excellent decision to keep his hands well clear!

Sigrid packs her carry-on bag for the flight to Paris. She talks about what she needs to pack, and why.

Sigrid uses the question words "who," "what," "when," "where," "why," and "how" as she thinks out loud about her next vacation. Where will she go? How will she get there? How much will it cost?

There's one more important question word to learn: "how." Sigrid provides plenty of examples of questions with "how," both by itself and together with an adjective or adverb.

Sigrid, here as Rita and Kathy, has fun practicing the 5 question words ("who," "what," "where," "when," and "why") on a train. She makes quite a nuisance of herself, too. More about the 5 W's in: Parts of Speech: Question Words - Part 1 of 3.

We often use question words to ask questions. The five main ones start with "wh." Sigrid explains how they work.

The narrator explains how the breathtaking rock formations of Antelope Canyon came to be, and why mountains around the world can provide a metaphor for human existence.

We visit Bryce Canyon, where valuable fossils have helped understand the geological history of the planet. The sandstone spires of the canyon are breathtaking.

In this segment, we learn about the role weather plays in the creation of rock formations in the national parks of the United States.

Geysers represent a very popular tourist attraction in Yellowstone Park. How do they work and where do they come from? And what is sandstone? The video answers these questions.

Why are some rock formations and animals found on more than one continent? The explanation dates back to the Ice Age.

Why do some of the national parks in the United States resemble the European Alps? Geologist Dr. Robert Darga answers this question.

Maggie decides to intervene, and finally the girls are encouraged to stop sulking and talk about their issues.