[bright music] - Hi everyone.

Crystal and Sahil here.

How you doing today, Sahil?

- Good.

- Awesome.

I hope my friends at home are doing good today.

We have four different liquids here.

And we want to test these liquids.

We want to see which liquid is high in density, which liquid is low in density.

We have one cup that is filled with honey.

- Honey!

- Honey.

- H for honey.

- H for honey.

I have another cup that is filled with corn syrup.

- Corn.

- Yeah, that's right.

You're right.

It does say syrup.

This is corn syrup.

- Corn syrup.

- Yes.

The third cup is filled with- - Water!

- Water.

Good job.

Yes.

And the fourth cup is filled with oil.

- Oil.

- Yes.

- Each cup, there's a different type of liquid, but they all have the same volume.

Volume means quantity or amount.

So it's all the same amounts of liquid.

Each cup has about 100 milliliters of liquid.

So what we're going to do, we're gonna use this balance here, this gram balance and we are going to see which liquid is high in density.

- Like heavier or- - That's right.

Which one weighs more?

- Like which one is heavier?

- Good job.

So first what we're going to do is test the honey.

- Honey.

- We're gonna place the honey.

- Corn honey.

- Well, this is the corn syrup.

So we're gonna test the honey and the corn syrup.

We're gonna place them right here.

Now, if the side that goes down, the side that goes like this, that means it weighs more so it will tilt down, okay?

That means that it has a high density.

- High density.

- Right, so now we're just gonna make sure it's balanced.

And now I'm going to carefully place this cup of corn syrup, this side like this.

And Sahil, I'm gonna ask you to place this cup on this side, okay?

But before we do it, let's make a prediction.

A really smart guess.

Which liquid do you think has a high density?

Do you think it's the honey or the corn syrup?

- Do you think it's the honey?

- Well, this is the honey and this is the syrup.

Which one do you think has a high density?

Which one weighs more?

- I think the- - The syrup?

- Syrup.

- Okay.

It's a good prediction.

Can you please carefully take the cup that has the honey and place it right inside there just like that?

Take your time.

Let's see what hap- Whoa.

The syrup, the corn syrup, has a high density.

- Corn syrup.

- Yeah, your prediction was correct.

Gimme five.

Good job.

Okay, so now we're gonna take them.

Whoop.

Alright, so now we're gonna place that here.

And now we are going to take the syrup and water.

- Water.

- Now, Sahil, prediction.

What do you think?

Which one has a high density?

Do you think the water has a high density or the syrup?

- The syrup.

- You think the syrup?

Okay.

That's a really good prediction.

Do you wanna try?

- Yes.

- Okay so first, what would you like to place in?

Would you like to place the water or the corn syrup?

- Water.

- The water?

Okay.

So you can place the water on that side very carefully.

Good job.

And now would you like to place the corn syrup on the other side?

- Yeah.

- All right.

Let's see.

Which weighs more.

Whoa!

- Whoa!

- High density.

Low density.

- Low density!

- Gimme five, your prediction was correct.

Ow!

Don't hurt my hand!

[laughs] Okay, good job.

And now what we're going to do is we are going to test, let's see.

Ooh, let's weigh the corn syrup and the oil.

Now, so the corn syrup has a high density when we compared it to the honey, when we compared it to the water, and now we're going to compare it to the oil.

Now let's make another prediction.

Which do you think has the high density?

Do you think it's the corn syrup or the oil?

- The corn syrup.

- The corn syrup?

Okay.

Which would you like to place into the gram balance?

- That one.

- The corn syrup?

Okay, you can place that one in.

Be careful in taking your time.

Good job.

Whoa, that is heavy, right?

That's very heavy.

Very dense.

Okay, now let's carefully place the oil.

Whoa!

Winner winner chicken dinner.

This guy's dense, right?

- Yeah.

- High density- - High density!

- Low density.

So you know what?

Now we're gonna take the syrup out because the syrup is very high density.

But you know what?

Let's try the other liquids, okay?

Let's see.

We'll leave the oil in there.

Let's test now the honey.

Do you think that the honey has a high density or the oil?

- Maybe the oil.

- The oil?

Okay.

Let's try.

Let's see.

Whoa.

Honey.

High density, low density.

Okay, good job.

We'll take this one out.

And now do you wanna try the water?

- Yeah.

- Water versus oil.

Let's see.

- Let's see.

Wow!

- Oh wow, look.

Hmm.

That's interesting.

The water's actually high density.

That's interesting, right?

- Yeah.

- Okay, scientist, so now what we're gonna do is, the fun isn't over just yet.

We're gonna put our gram balance to the side and we have this clear container here.

What we're going to do now is we are gonna pour these liquids into this cup.

And the liquid that is high in density, that weighs more, that is heavy, it's gonna go straight to the bottom.

It's going to sink.

The liquid that is light, it has a low density, it's going to float.

- Float in the water.

- Well, in all the liquids 'cause there's water, there's oil, there's corn syrup, and honey.

So I need your help, Sahil, can you please very carefully, we're gonna take the cup of the liquid and pour it inside that glass cup right there.

Water.

Check.

Okay, next.

Oil.

- Oil.

- Good job.

And what's next?

Honey.

- Honey.

- Ooh so thick, so dense.

It's so heavy.

Good job.

And now the final liquid.

- [Both] Corn syrup.

- There you go.

Pour that in there.

You're doing a great job, you're taking your time.

Good job, good job.

Now friends at home when you're doing this, please give the liquid some time to settle so that they can separate.

And then you can see the liquids floating on top of liquids.

Good job, Sahil.

And now we also created an awesome density column.

- Yeah.

- See?

And then if you look very carefully, you can see the liquid swimming.

You see the honey, the corn syrup.

Look at the water.

Yeah, you see the oil.

- Yeah.

- Gimme five, Sahil.

You are awesome.

- The oil's right there.

- Yeah.

Can you please say, "Science rocks"?

- Science rocks!

- Bye friends.

See you soon.