1
00:00:00,500 --> 00:00:03,480
Hello, we are Leonardo Dubini and José Barea.

2
00:00:04,320 --> 00:00:08,019
We are from 6th grade C and we are presenting dry ice.

3
00:00:08,740 --> 00:00:13,019
Dry ice is carbon dioxide, also known as CO2.

4
00:00:13,580 --> 00:00:19,239
It can have different uses, such as fixing metal, removing floor tiles and even warts.

5
00:00:19,940 --> 00:00:24,219
A very common tool where dry ice can be found is a fire extinguisher.

6
00:00:25,339 --> 00:00:28,699
This is dry ice and we are going to put it in the container.

7
00:00:28,699 --> 00:00:43,210
As you can see it evaporates passing from solid to gas directly and now we're

8
00:00:43,210 --> 00:01:28,840
going to do some experiments like pouring it into water. You can touch it. This is the

9
00:01:28,840 --> 00:01:39,680
reaction that has dry ice when it gets contact with the water. This is

10
00:01:39,680 --> 00:01:46,219
how it looks after it gets contact with water and now we're going to pour it into

11
00:01:46,219 --> 00:02:37,900
hot water. It has melt. The water that was boiling now is cold. I'm going to put

12
00:02:37,900 --> 00:02:50,800
this into hot water and then I'm going to put it in the dry ice. The dry ice makes

13
00:02:50,800 --> 00:03:48,479
some ice. It screams. We are going to pour the ice into the water. This is what happens

14
00:03:48,479 --> 00:03:57,919
when you stop the pressure from the gas. As you see, it tries to go out as soon. Let me

15
00:03:57,919 --> 00:04:27,779
We have thrown the water into the sink, and when we use water, look at this.

16
00:04:27,779 --> 00:04:40,560
And last but not least, we are going to make a gas explosion.

17
00:04:40,560 --> 00:04:50,120
It's cold.

18
00:04:50,120 --> 00:04:54,000
Very cold.

19
00:04:54,000 --> 00:04:55,000
Yes.

20
00:04:55,000 --> 00:04:59,529
Lol.

21
00:04:59,529 --> 00:05:08,279
Well, goodbye.