Every fall, the monarch butterflies migrate back to their breeding grounds in California. These fascinating and stunningly beautiful creatures weigh only a gram, yet travel extraordinary distances to complete their lifecycle. In the early spring, deep in the Yosemite valley, the sun warms the wet ground, forming clouds of misty fog.

Watch the famous speech delivered by Charlie Chaplin's character in the film The Great Dictator from 1940. "We think too much and feel too little. More than machinery we need humanity. More than cleverness we need kindness and gentleness."

The Ocean Cleanup is a Netherlands-based, non-government environmental engineering organization that develops technology to extract plastic pollution from the oceans. They have developed a "passive" cleanup system that takes advantage of the natural oceanic forces of wind, water, and currents.

Opposition MPs react after parliament voted against Boris Johnson's extremely tight Brexit bill timetable, which the government said was necessary to reach the prime minister’s target of leaving the EU on October 31st.

Kelp is a fascinating plant. What we see on the surface has little in common with what's actually there. Californian harbor seals are mammals but they do a lot of hunting underwater.

Even though Prime Minister Boris Johnson has said he does not want a delay, he confirmed he would set aside the bill until speaking further with the EU. He thanked the House of Commons for their assent.

With longer adjectives, we have to add some extra words in order to form the comparative and superlative. Sigrid explains how.

What's happening with Brexit? In Parliament, Labour MP Karl Turner makes a curious analogy between debating an important bill and choosing a sofa. Turner said MPs required more time to debate "this incredibly important bill," adding that Nikki da Costa, the PM's legislative adviser, had suggested the House needed at least four weeks to consider the legislation.

Everyone's heard of California, but this documentary showcases the state's natural beauty and wildlife. It has a fascinating range of geographical features and is home to many unique species of animals.

Sigrid looks at the comparative and superlative forms of adjectives that have a "Y" or an "E" at the end, and also some that don't follow any pattern at all!

Annette teaches us how to respond when someone asks for our assistance. We learn the best ways to say “yes” when agreeing to help out, and how to refuse politely when we need to “let someone down easy.”

Sigrid finishes carving her pumpkin and places the candle inside so we can see the final effect of the jack o' lantern. Happy Halloween!

The pumpkin is ready to carve out. Sigrid explains that pumpkins are indeed an edible type of squash and not just for making into jack o' lanterns. In fact, one pumpkin can become both a pumpkin pie and a jack o' lantern.

Annette discusses how we might ask for help in various formal situations, in which we may be talking to someone we don’t know very well, an authority figure, or a total stranger.

One way to prepare for Halloween is to make a jack o' lantern. In this segment, Sigrid explains what a jack o' lantern is, and how kids and adults celebrate Halloween.