- I'm Inga.

- And we're not scientists.

- We are definitely not scientists.

- But we look like them today,

because we are going to be trying kids science experiments

as adults, yes.

Did you do a lot of science experiments as a kid?

- I am not familiar with the language of science.

I took chemistry once and I failed it.

I like actually failed it.

- I actually hated chemistry as well.

Oh, no, and this is kind of like chemistry.

- This is exactly what my nightmares

are made of. - Oh, no.

(screaming)

Anyway, Inga's here, I'm challenging her.

We're gonna see who can do the science experiment correctly.

And then, if all else fails, we're bringing in an expert.

Okay?

- [Woman] So, I consulted with someone via email,

who gave us the ingredients we'd need to build a volcano

without instructions.

- You're gonna need dish soap, white vinegar, food coloring,

baking soda, cold water, room temperature water,

an empty soda bottle, and, of course, a homemade volcano.

- But this is a competition, and we can't see each other,

so we're gonna need to--

- Block us off.

- Yeah, can we get a separation, please?

- This is a competition to fail less miserably.

That's the real competition that's happening.

- So this is in place?

All that I know is that the explosion happens at the end,

so there must be one ingredient that causes the explosion.

- Okay, and we only get one shot!

And I can't look at my phone.

- Don't look at your phone.

Inga, are you ready?

- No, but--

- Let's go.

(upbeat music)

- I don't really know why we have so many measuring tools.

Why does it matter if I don't actually know

how much I'm gonna measure in?

Aw, should I keep this for aesthetic purposes?

Why are there two different types of water?

- I feel confident that the water is not what's gonna

make the explosion, so I'm gonna put the water

in the bottle first.

- 'Cause I cook a lot, right?

So I know that for cleaning,

you combine these two ingredients.

So I know there's like some reaction going on here.

- I just heard her say you combine two ingredients,

I don't know which ones they are.

- So, I'm gonna add this in.

I don't know how much.

I hope this doesn't like actually explode.

Now what?

The water temperature has to matter.

Oh, no!

I don't think this is right.

- We're making a volcano,

so I think I got to put red in there.

- Oh, wow, that's a lot of water.

Is that too much water?

How much water are we supposed to add?

But this is gonna be my last thing.

Should I test it out?

- You're gonna do a mini one before this?

- And here, again, I don't know how much.

- I'm gonna add baking soda.

- How much do I need?

Is that gonna do anything?

Yo!

- What? - Nothing!

- Inga, did you just do it?

- Nothing happened, but I think I know

what (mumbles) to get it up! - Oh!

- All right, so this is gonna go in here.

- I feel like Inga's ahead of me now,

and I don't know how to deal with it.

It's the only thing I haven't added.

Kinda freeballing.

- I'm not even measuring.

- I just don't know what else to do.

We're doing it!

- One, two, okay, go!

- Oh, okay.

Okay, you can't see, but look.

It's--

It's fizzing.

It's orange.

Maybe it's like a soda bottle, and you need to kind of...

There we go, look at that!

Now it's looking good, just need to--

- It's so... - Oh!

- Pretty! - I just lost!

Oh, okay, all right, we can take this divider away.

- Was this supposed to shoot up?

I don't know what it's supposed to look like.

- Well, yours is doing way better than mine.

You think your cooking expertise helped you

figure this one out? - I think it helped a little,

'cause I knew that these two together.

I was saying that like sometimes I use this mixture

to scrub pots and pans.

And I know I get like some frothiness.

And I also know dish soap gives you bubbles,

so I just combined it.

I didn't know how much, though!

I just literally--

- What was the last thing you added?

- Vinegar!

- Okay, I did that, too, it didn't work out for me.

I must have had my measurements wrong.

- I think it could be better still, right?

- It could be a little better.

Let's clean this up, and let's bring in the expert,

all right? - I'm excited.

- Okay, high five.

- Yay!

- So, obviously, we couldn't really do this.

So, we're bringing in a science expert.

- A true professional.

- Hi.

- Hi.

- [Inga] Did you make this?

- [Marisol] Mhm.

- [Sarah] I'm sorry, how old are you?

- I'm nine, almost 10.

- I thought we were having a science expert.

- I am the science expert.

I've done so many volcanoes.

- [Sarah] Oh.

- Wait, how many?

- 23.

- That's more than the one I've made.

- This is my homemade volcano.

I actually painted it a couple days ago.

- This looks incredible.

- This is made of styrofoam,

but you can also use paper mache, dirt.

Just don't use paper, that's--

Just don't.

- Yeah, of course, we would never.

That would look lame.

Marisol, what's a volcano?

- A volcano is a cone-shaped mountain with a vent

that connects to the molten rock layer below the Earth.

When a volcano erupts, the molten rock is driven up by gas.

- Oh, okay, that makes sense.

So, that's basically what we're creating here.

- But this is different than an actual volcano,

you know that, right?

- Yeah, I know that.

Of course.

I'm an adult.

- [Inga] I've never been this excited!

- Let's get started?

- Yeah.

First, combine the water, white vinegar, dish soap,

and food coloring into an empty soda bottle.

I'm gonna measure out 400 milliliters of white vinegar.

- It's the adult thing I can do.

- Probably the only one you can do.

- [Sarah] Sounds like pee.

- Now that smells horrible.

Now, we're going to measure 100 milliliters of cold water,

and you need to add dish soap.

You need 10 milliliters of dish soap.

- Mmmmmm.

I mean, I don't eat dish soap, I don't know why I said--

- I hope not.

Now, add your food coloring.

Boop.

In a separate cup, to make baking soda slurry,

combine water and baking soda.

- [Sarah] Baking soda slurry. - Slurry.

- [Sarah] Did you make yours into a slurry?

- Did I make mine into a slurry?

Was that a slurry?

- Well...

- You need 50 milliliters of water.

It's going to be the room temperature water.

And then you add the baking soda.

50 milliliters.

- Does it react yet?

No.

- No.

Now we mix it around to make sure it's a slurry.

It's like paste.

- Mmmm, yummy paste.

- Can you explain the chemical reaction to me?

Like what's going on?

- Baking soda and vinegar create a gas

called carbon dioxide, and when mixed it foams and explodes.

- And explodes. - And explodes.

- That makes sense.

- Now it's almost time to do the experiment, but first,

we need to set up the volcano.

- Oh, I don't know why we didn't think of this.

- [Marisol] Don't wanna be messy.

- Yeah, of course.

Of course you don't wanna be messy.

I feel like I should put some dinosaurs out.

This is cute, huh?

Okay. - Sure.

I'm gonna make this slurry a bit more fun.

I'm gonna add some food coloring.

This is a very important step,

because you want the slurry to be very mixed.

Isn't that a nice color?

- It is, I like it, it's very pretty.

- Finally, pour the baking soda slurry into the soda bottle,

and step back quickly.

(laughs)

- [Sarah] It actually worked!

- Yeah.

It worked 23 other times that I did it.

- Okay, all right. - Okay, okay.

Well, I'm so sad I couldn't get it to do that

when I tried it.

Now we can do it, and you can do it at home.

- You can't do it.

- [Sarah] You don't think I can do it?

What about Inga, can she do it?

- Sure.

- Thank you.

- You were right, you had to jump back.

That's pretty fun.

We'll see you next time when we try

another kids science experiment,

and I guess get shown up by a kid.

How old are you again?

- Nine, turning 10.

- Nine, oh my.

- And already so wise.

What are we doing?

What are we doing? - [Sarah] All ready so wise.

Bye.

(upbeat music)