Now remember, don't touch these candles, there's fire.
*blows fire out*
I did it.
Don't blow out the candle.
Today I'm going to try some simple science experiments.
So I found a few experiments that we can try from YouTube.
I've never try these before myself so I actually
don't know if they are going to work in real life, but we'll see.
This experiment is where we're gonna have candles lit and we're going to blow out the flame using carbon dioxide.
In order to make carbon dioxide, we're going to put baking soda into vinegar.
Because carbon dioxide is heavy, we should be able to sort of trap the gas and then
use the gas to blow out the flames.
Now remember, don't touch these candles, there's fire.
*blows fire out*
I did it.
Don't blow out the candle.
Uh, I should have known, as soon as I light up candles,
they are going to get blown on.
Because the boys love birthdays.
Their own birthday, other people's birthdays,
they will be the ones blowing out the candles no matter what.
It has led to a few socially awkward moments.
Boys, do not blow out the candle,
otherwise we can't do our experiment.
Do you know what vinegar smells like?
Shan: What does it smell like? Ruen: Chips!
Chips? Like salt and vinegar chips?
Ruen: Yes. Shan: You're right.
What's going to happen is, we're going to pour in baking soda -
Can I put the baking soda first?
No, I'll do it the first time round.
Ahhh! Daddy you're messing up the table!
I didn't do that mess, you did it.
Is it going to work? I don't know. Let's see.
Wow.
So there's the gas now, and the gas is going inside the second glass, I suppose.
Cuz carbon dioxide is heavier?
So let's see if it works!
One!
When you add the baking soda to the vinegar, of course there is a reaction.
It bubbles up very fast. The boys were pretty excited.
Ciaren will do this one and Ruen will do the next one.
Wow!
I made an explosion!
Ok Ciaren, try and use this and blow out the candles.
Ok, 2 out of 3.
Ruen's turn.
Wait!
Ru! What did you do?
Give me the spoon.
No no no, don't. Let's try and catch the gas, ok?
Closer.
Put is closer, quick!
He blew out 2 of the 3 candles, but I think that might be more the liquid?
Rather than the gas?
Yay! I win!
Ok, also 2 out of 3 I would say.
This experiment is colour explosion, we call it.
So we're going to drop food colouring onto milk, and then we drop a bit of soap, it should
react with the milk in such a way that it spreads out the colour on the surface.
The boys were pretty excited by explosion.
Going to make the colour explode!
Will it go on our face?
Not that much of explosion.
Ruen: I will do the, I will do the colouring, ok? Shan: Don't spill it.
So I had hope that we will make a little pattern which almost look like a
circle or even a flower?
Delicately dropping the colouring on.
Ciaran could kind of do it, but of course Ruen just like
put it all over the place.
We are going to put one drop of soap here, and it's going to make everything explode.
Ok everybody, are we ready to watch?
Here goes!
Woah!
Ruen: Star! Ciaran: I thought it explodes?
Yah, that's like an explosion.
It did not explode.
Perhaps calling it an explosion had set the bar too high.
I think probably Ciaran at least was a bit underwhelmed.
This happens because something in the soap reacts with
the milk and makes it move!
Did some research on Google.
Who's google?
So I saw this experiment where they kind of draw a little spider on silver foil and then later you put water,
and the water actually sorts of lifts up the ink as it were, and the spider looks like he's floating!
So we're going to try that!
Ru, do a small circle, a thick circle.
They needed help definitely, with colouring in, because you also have to make it quite thick,
as thick as possible? Because it's as if you're trying to keep all the ink together and hold it together.
Ok, so what's going to happen is we are going to pour water into our dish
and then hopefully, don't touch, don't touch.
Hopefully the water is going to make the spider float!
And then the spider becomes alive!
I'll try mine first.
And sure enough, the ink does lift up and float, however,
the shape doesn't stay?
Well... He's floating.
Suddenly the legs were all folded over onto the body, so it works, but it doesn't look good.
Well, mine's too big.
My one now.
Is yours alive too Ciaran?
Yeah...
And I think I probably built it up a bit too high?
Saying that the spider would come alive?
Doesn't exactly, does he? He just sort of rises to the surface and the legs are all folded over.
Can we touch them?
So the boys have no special care for the authenticity of the scientific experiment,
so pretty soon they're just like, poking at the spider, lifting the ink up again, and
the spider was and truly dead.
Shan: So boys, what do you think is happening here? Ruen: Give me, give me.
What's happening in this experiment?
The ink is lighter than the water.
You are right, Ciaren! This kind of ink, which is not permanent, is lighter than water, so it should float.
We're going to try and pierce the potato with a straw, so in my mind, that shouldn't work, but apparently
if you cover one end, it's going to create a bit of an air vacuum which makes the straw
strong enough that it should go right through the whole potato.
Ok, so try and push it through.
Alright, let me demonstrate first.
Dad, the potato is so hard to smash down.
I know, it's going to be so hard, right?
I can do it just now!
Here's the trick. I want you to cover the end with your thumb like this,
and then it should go through. Ready? 1, 2
It can go through the skin, but it couldn't go the whole way through.
Ciaran seemed pretty focused on getting through the potato.
Cover thumb and then...
I'll make this hole big enough for my pinky and then...
Ok, that's how you're going to do it?
He was digging in from both sides, and I think eventually he worked out how to get the straw the whole way through.
I'm an aeroplane!
Potato aeroplane!
Gor gor (big brother) like this!
Gor gor, like this!
Ciaran: Look. Ruen: Poke it into there.
Ru, are you seriously going to eat a potato sandwich?
But actually, as an Irish man, it makes me very proud. Because, in Northern Ireland where I grew up, people
literally eat potato chips, like fries inside bread. It's just like carb to carb.
So, made me kinda proud that the boys were showing a bit of Irish spirit.
I think this is a pretty good way for parents to fill a day,
show the kids that you can do science-y experiments
using things in your home.
So showing that your everyday products can lead to interesting outcomes, I think that's quite cool.
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