Saltar navegación

Tarea 4 Curso Evidencias Julio 2023 - Contenido educativo

Ajuste de pantalla

El ajuste de pantalla se aprecia al ver el vídeo en pantalla completa. Elige la presentación que más te guste:

Subido el 12 de julio de 2023 por Laura C.

7 visualizaciones

Más información Transcripción

Descargar la transcripción

Children, today we are going to study about energy, okay? 00:00:03
So first, we are going to listen and read the page 82. 00:00:09
Energy produces all the changes around you. 00:00:17
It is important for everything you do. 00:00:21
Energy has different forms and it can also change from one form to another. 00:00:25
Thermal energy. 00:00:31
Thermal energy is in anything that is hot 00:00:32
The sun produces lots of thermal energy 00:00:37
When you heat up a material, you add thermal energy to it 00:00:41
When you cool down a material, you take away thermal energy from it 00:00:46
As a consequence, a change of state occurs 00:00:52
If the thermal energy in a liquid increases, it becomes a gas 00:00:56
This process is called evaporation 00:01:02
If the thermal energy in a solid increases, it becomes a liquid 00:01:06
This process is called melting 00:01:12
If the thermal energy in a liquid decreases, it becomes a solid 00:01:15
This process is called freezing 00:01:21
Okay, so here you have one type of energy that is thermal energy. 00:01:25
Energia termica produce different temperatures. 00:01:33
So thermal energy is anything that is hot. 00:01:38
For example, the sun produces lots of thermal energy. 00:01:43
The sun gives us hot, so it produces thermal energy. 00:01:48
When you heat up a material, when you heat up the food, for example, like here 00:01:53
You add thermal energy to it 00:02:01
Se añade energía térmica al objeto 00:02:04
But when you cool down a material 00:02:07
Cool down means cuando se baja la temperatura de un material 00:02:10
You take away thermal energy from it 00:02:15
Lo que haces es quitarle temperatura 00:02:19
As a consequence, a change of state occurs. 00:02:21
And we are going to see the three ways to change the state of a material. 00:02:28
If the thermal energy in a liquid increases, it becomes a gas. 00:02:35
This process is called evaporation. 00:02:42
With a liquid becomes a gas, this is evaporation. 00:02:46
Then, when the thermal energy in a solid increases, it becomes a liquid 00:02:50
If we have, for example, butter 00:03:01
And we increase the temperature of butter 00:03:05
The butter is melting 00:03:08
La mantequilla se derrite si la calentamos 00:03:11
And the sun evaporates water 00:03:13
This is the example for evaporation 00:03:19
And finally, freezing 00:03:22
When we have a liquid and we decrease its temperature 00:03:25
It becomes a solid 00:03:31
When we lower the temperature of a liquid 00:03:34
What it does is that it becomes a solid 00:03:37
Because what we do is freeze it 00:03:40
Freezing 00:03:42
Like the ice creams that you have here 00:03:43
I think this is easy. 00:03:47
Ok, now I'm going to explain the activities that you have to do. 00:03:51
The first one is the activity 2 on this page, on page 82. 00:05:27
And this activity says, what are the three changes of state? 00:05:34
So, the three changes of state you have here, what are these? 00:05:39
Evaporation, melting and freezing. 00:05:43
And then, the second question on the activity is, what happens to the thermal energy in each of them? 00:05:47
You go to evaporation, and here I say, if the thermal energy in a liquid increases, it becomes a gas. 00:05:57
So, this is what happens with the thermal energy in evaporation. 00:06:06
Melting. If the thermal energy in a solid increases, it becomes a liquid 00:06:10
So this is what happens with thermal energy in melting 00:06:17
And if the thermal energy in a liquid decreases, it becomes a solid 00:06:21
This is what happens with thermal energy in freezing 00:06:28
So here, on this part, you have the answer for both questions 00:06:32
ok? ok and the second activity and the last one that you are going to do is the 00:06:38
exercise 1 ok yes the exercise 1 on page 88 and in the exercise 1 you have to 00:06:53
complete this summary. So you have matter, here you have to write states 00:07:06
of matter or states only, and here physical changes. In the states of 00:07:17
matter, liquid, solid and gas, physical changes, we have change of shape that we 00:07:27
going to see this after, and changes of state that you have to complete here 00:07:35
the missing one. And that's all, that's all what you have to do about 00:07:47
science. I hope you understand. If you don't understand anything you ask me 00:07:53
please, ok? Bye bye, see you soon, bye! 00:07:58
Idioma/s:
en
Idioma/s subtítulos:
en
Autor/es:
Laura calvo de Haro
Subido por:
Laura C.
Licencia:
Reconocimiento - No comercial - Compartir igual
Visualizaciones:
7
Fecha:
12 de julio de 2023 - 13:32
Visibilidad:
Clave
Centro:
CP INF-PRI ANDRES SEGOVIA
Duración:
08′ 04″
Relación de aspecto:
1.78:1
Resolución:
1920x1080 píxeles
Tamaño:
36.66 MBytes

Del mismo autor…

Ver más del mismo autor

EducaMadrid, Plataforma Educativa de la Comunidad de Madrid

Plataforma Educativa EducaMadrid