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NS 3º U5 L3 Changes of Matter - Contenido educativo

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Subido el 18 de mayo de 2024 por Fernando G.

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hello boys and girls welcome to a new natural science lesson natural science unit five lesson 00:00:00
three changes in matter changes in matter matter can experience physical and chemical changes 00:00:07
physical changes and chemical changes these changes can be reversible 00:00:18
or irreversible. 00:00:31
Reversible or irreversible. 00:00:35
Cutting is irreversible. 00:00:38
Stretching is reversible. 00:00:43
Burning is irreversible. 00:00:49
And breaking is irreversible. 00:00:55
Physical changes. Changes of shape. Changes of state. Changes of shape. They can be reversible or irreversible. 00:01:01
Cutting, bending, stretching, squeezing. Cutting is irreversible. Stretching is reversible. Bending can be reversible or irreversible. 00:01:25
Squeezing can be reversible or irreversible. It depends. 00:01:46
The balloon returns to its original shape so it's reversible. 00:01:57
The pencil does not return to its original shape so it's irreversible. 00:02:06
In the case of changes of state, they are reversible. Water can change from solid to liquid to gas, from gas to liquid to solid. 00:02:16
Chemical changes. Two forms of matter react and a new form of matter is created. Chemical changes are irreversible. 00:02:36
Combustion, oxidation. Combustion, when wood burns, it reacts with oxygen. 00:03:02
When metal reacts with oxygen, it rusts. 00:03:24
Thank you very much for listening. 00:03:33
See you. 00:03:36
Idioma/s:
en
Autor/es:
Fernando García
Subido por:
Fernando G.
Licencia:
Reconocimiento - No comercial - Sin obra derivada
Visualizaciones:
57
Fecha:
18 de mayo de 2024 - 10:00
Visibilidad:
Clave
Centro:
CP INF-PRI IPLACEA
Duración:
03′ 40″
Relación de aspecto:
1.78:1
Resolución:
1092x614 píxeles
Tamaño:
12.55 MBytes

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