[playful music] - Hello, everyone, my name is Crystal, and I'm here at the Brooklyn Preschool of Science with my friend Sahil.

Sahil, can you please say hello?

- Hello.

- How are you today?

- Good.

- Awesome.

Together, we are going to do a really fun hands-on science activity.

Okay, but first I would like to talk about our five senses.

Can you say that, Sahil, can you please say five senses?

- Five senses.

- Yes, our five senses are our sense of sight.

- Sight.

- Sound.

- Sound.

- Smell.

- Smell.

- Touch.

- Touch.

- And taste.

- Yeah.

- We see with our what?

- Eyes.

- Our eyes.

We hear with our?

- Ear.

- We smell with our?

- Nose.

- We taste with our?

Our tongue.

- Tongue.

- And we touch with our?

- Hands.

- Our hands.

Okay?

So today I would like to focus on our sense of smell.

Can you say that, Sahil?

Can you please say sense of smell?

- Sense of smell.

- Yes, that's right.

Do you know that we can detect over one trillion different smells?

That's a lot, right?

- That's a lot.

- Yeah.

Our nose, our sense of smell, it helps us understand the world around us.

Inside our nose, we have special cells.

They're called olfactory receptors.

When we smell something, those special cells, they send a signal to our brain and they help us identify that smell.

Is it a good smell, a bad smell?

When we smell something good, it makes us feel good.

It makes us happier.

That explains why we just love the smell of our favorite blanket after it's been washed and dried, right, Sahil?

- Yeah.

- Yeah.

So I have a really fun science activity here and it's gonna focus on our sense of smell.

So let's take a moment and look at the materials that I have on my table.

Okay?

Sahil, what's this?

- Pencil?

- We have a pencil.

We have a few?

- Rubber bands.

- That's right.

Rubber bands.

What are these?

- Cups.

- Some cups.

I have some sheets- - Foil.

- Foil paper, this is- - Foil.

- Yeah, this is aluminum foil.

I also have some fruits here.

I have?

- Oranges.

- Oranges.

- Apple.

- Apple.

Do you know what this is?

People put it on their hot dogs.

- Hot dogs.

- Mustard.

- Mustard.

- Yeah, and what is this?

- Ketchup.

- Ketchup.

And we have some cocoa powder.

So now I'm gonna need your help, Sahil, okay?

- Yeah.

- I'm gonna take a cup, okay?

- Okay.

- I'm going to place this piece of orange right inside the cup like that.

I'm gonna take a piece of aluminum foil, place it above the cup just like this.

[foil crunching] I'm gonna take one rubber band and I'm going to wrap it around so that the foil stays on the cup.

[foil crunching] Just like that.

- Now pencil.

- We're gonna use our pencil, we're gonna poke some holes.

Can you help me?

[foil crunching] One, two, three.

[foil crunching] Good job, four.

Now we're just gonna leave that right there.

And now we're gonna move on, another cup.

I'm gonna take a piece of apple now, [apple taps] put that inside the cup.

Another sheet of aluminum foil.

[foil crunching] And what's next?

What should I wrap around the cup?

Rubber band, right?

- Rubber band.

- Yes.

Good job.

And, Sahil, can you please take the pencil and poke some holes?

- Yeah.

Some four?

- Yes, please.

Thank you.

One, two, three, one more.

[foil crunching] Good job, buddy.

Okay, we'll put the pencil down.

I'll put this right here.

And now we're going to get the next cup.

I'm going to open this and I'm gonna squeeze [bright music] some mustard in there.

Okay, and again, I'm gonna take a sheet of foil paper, [foil crunching] wrap it just like that.

Thank you.

Sahil.

Can you get the pencil there?

- Yeah.

- Thank you, I'm gonna wrap the rubber band around and if you can please poke some holes.

One, two, three, and four, good job.

Next, the cocoa powder.

- Cocoa powder.

- Yes, I don't have a spoon, so might get a little messy, let's see.

- It might get a little messy.

- But that's okay, right?

- Yeah.

- Okay, so I'm gonna carefully pour some cocoa powder into the cup.

Okay, I think that's just enough.

- That's enough.

- Yes, so I'm gonna take another sheet of foil, wrap it around.

Wrap my rubber band again.

úAnd, Sahil, can you please poke four more holes?

[foil crunching] One, good job.

Two.

Good job.

Three, and one more.

[foil crunching] Thank you.

Okay.

And what's next?

The cocoa powder.

Actually, did we do the coco powder?

- Yeah.

- Did we do the mustard?

- Yes.

- Okay.

And we added, are we missing something?

[gasps] Oh, ketchup.

- Ketchup.

- Yeah.

Okay, another cup.

I'm gonna open this packet of ketchup.

I'm gonna squeeze it in.

- Ooh.

- Ooh.

[mischievous music] [Crystal chuckles] All right, I'm gonna take the foil.

[foil crunching] Last rubber band, wrap it up.

And now please, sir, four more holes.

[foil crunching] One, good job.

Two, three, and one more, four.

Amazing, okay, so now we've set up for activity.

Sahil, can you please, for a moment, just close your eyes.

Okay, and what I'm gonna do is I'm gonna take our cups here and I'm just mix them around just like this, quick, quick, quick, quick, quick, quick.

Okay, so now they're not in the original order, okay.

And now, Sahil, you can open your eyes.

I have these cards here, okay?

And they're images on the card.

Look at this.

Some chocolate.

- Chocolate.

- Apple.

- Apple.

- Oranges.

- Orange.

- Mustard.

- Mustard.

- And?

- Ketchup.

- Ketchup.

Good job.

Now I want you to use your sense of smell only, okay?

Not the other senses, smell only, okay?

I'm gonna take one cup.

- With the nose?

- And I'm gonna squeeze a cup under your nose and I want you to breathe in [inhales] and I want you to tell me what do you think is inside the cup, okay?

Are you ready, Sahil?

- Yeah.

- Okay.

[foil crunching] What does that smell like?

- Chocolate.

- Chocolate.

Okay.

So can you please take the picture of the chocolate and place it on top of the cup for me?

- On top.

- Good job.

- On there.

- All right.

Next, are you ready?

- Yeah.

- Okay.

Remember sense of smell only.

[foil crunching] What is that?

- That smells like apple.

- Apple?

[foil crunching] Hmm, okay, can you please take the picture of the apple and place it on top of the cup?

[mischievous music] Good job, Sahil.

Okay, next, the third cup.

[mischievous music] Sense of smell.

What's in there?

- It smells like... Could either be ketchup, orange or mustard.

- I think it is ketchup.

- Ketchup.

Okay, bud.

Can you please take the card and place it on top of the cup?

[playful music] Way to go.

Two more.

Are you ready?

- Yeah.

- Okay.

[playful music] [foil crunching] What does that smell like to you?

- Mustard.

- Mustard?

Okay.

Can you please take the picture of the mustard and place it on the cup?

Which leaves this now with just an orange.

Does that smell like orange to you?

- Yeah.

- Yeah, all right.

Good job, so now we are going to, I'm going to see what's inside the cup, okay?

We're gonna see if you're right, okay?

So for the first cup here, you said some chocolate for the cocoa powder.

Let's see, are you ready?

- Yeah.

- One, - [Crystal And Sahil] Two.

- Three.

- Three.

[Crystal gasps] You were right.

There is cocoa powder.

Good job, Sahil.

Okay, that's the first cup.

Now the second cup, are you ready?

- The apple one.

- Apples?

Okay, let's see.

Are you ready?

One, two, three.

What's inside of the cup?

[gasps] Good job, there are apples.

You are right.

Okay, next.

The third cup.

Sahil, you said that you think that there's ketchup in here, right?

- Yeah.

Ketchup.

- All right, take the rubber band- - One, two, three.

[foil crunching] [Sahil gasps] [Crystal gasps] All right, good job.

Whoa, that nose really works, okay.

Fourth cup, Sahil, You said there is mustard in here.

- Mustard.

- Okay.

[plastic crackling] Can we count together?

- [Sahil And Crystal] One, two, three.

[Sahil gasping] - Whoa, [gasps] orange.

There's an orange in here.

That's okay, right?

- Yeah.

- So what do you think's in this cup?

If there are oranges in that cup, what do you think's in here?

- Maybe mustard.

[plastic crackling] Such, the more it... One, two, and three, mustard.

Whoa, you did such a great job.

Gimme five.

[flesh slaps] Can we please tell our friends at home, smell you later.

- Smell you later.

- Bye.