(upbeat music) - Good morning scientists.

Hey, did you hear the one about the volcano that ran out of money?

He was bank erupt.

(chuckles) Today, we're talking about natural disasters.

We've talked about natural disasters that are weather-related.

And now we're gonna talk about those that aren't, like earthquakes and volcanoes.

Now you might've seen videos or pictures of volcanoes erupting, but we're gonna watch another video.

And this time, I want you to make close observation.

When you watch this video of this volcano, see if you can figure out what is happening when it erupts.

Ready?

Here we go.

You can see that the hot lava starts deep down inside the earth in the magma chamber.

And it goes up through the volcano's main vent up to the crater and explodes out of the top as lava.

And then it comes down the side of the volcano and it forms bigger layers on the volcano, making it look larger and larger over time.

So let's do our own experiment to see what happens.

Let's see if we can make some lava come out of our volcano.

I've got baking soda inside of my volcano with just a few drops of dish soap, and I have vinegar in my cup.

Wow.

That is so cool.

Wow!

I love science, don't you?

Now that we've watched our own volcano erupt, let's take a look at a map of earth and see if we can observe some patterns created by volcanoes that erupt regularly here on our planet.

Take a look at this map.

What do you notice?

Do you see all those red dots?

That's right, those are the volcanoes.

Do you notice a pattern, may be a pattern that looks like a ring?

Very good.

This is called the ring of fire, and volcanoes and earthquakes happen very regularly around this ring.

Today, scientists, what I want you to do is I want you to continue to think about the ring of fire and the patterns that might be caused on earth by volcanoes and earthquakes.

Thank you so much for joining me today.

I can't wait to see you again next time for more science lessons.

I'll see you later, but until then, remember, never stop exploring and never stop discovering.

(upbeat music)