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Subido el 28 de junio de 2023 por Raquel P.

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Hello boys and girls! Today we are going to talk about changes in materials. 00:00:00
We can change the shape of solid materials by applying some forces on 00:00:13
them. Now we are going to see some of these forces. The first thing that we can 00:00:19
do is to cut the materials. We can change their shape by cutting them. 00:00:30
We can cut some things like, for example, paper or cardboard. 00:00:40
As well, we can bend some materials and change their shape. 00:01:11
We can bend some things like, for example, a cotton swab like this. 00:01:22
Or like, for example, a book binder like this. You can bend it in the way that you want. 00:01:40
Also, we can stretch some materials. 00:01:58
We can stretch some things like, for example, a rubber band or like, for example, a hair band. 00:02:12
One more thing that we can do to materials is to squeeze them. 00:02:42
We can squeeze some objects as a pencil case or as a cushion. 00:02:51
Two more things that we can do to some materials are hit them or cool them. 00:03:21
We can hit them or cool them to change their shape. 00:03:38
Let's see an example for a hit. Here we have some solid chocolate and if we hit it, 00:03:46
we will have it in this liquid shape. 00:04:02
Now let's see one example for cool. In this picture we can see water. 00:04:09
What happens if we cool the water? Do you know? 00:04:18
Right! It turns into ice. Very good! 00:04:25
Okay boys and girls, I hope you liked this video. So, we will see soon. Bye bye! 00:04:34
Subido por:
Raquel P.
Licencia:
Reconocimiento
Visualizaciones:
9
Fecha:
28 de junio de 2023 - 9:27
Visibilidad:
Clave
Centro:
CPR INF-PRI-SEC EL VALLE
Duración:
04′ 43″
Relación de aspecto:
1.78:1
Resolución:
1920x1080 píxeles
Tamaño:
182.41 MBytes

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