Unit 5. Material Natural Science - Contenido educativo
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In this unit, we are going to see about materials.
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And the things are made of materials.
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What is this made of?
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Wood! Good!
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Wood, okay.
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What is wood?
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Very good.
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What is the window made of?
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Glass!
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Glass!
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What is glass?
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Glass.
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Okay.
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What is this made of?
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Metal.
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Metal.
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Metal.
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What is
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this made of?
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Cotton.
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Cotton.
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What is cotton?
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Cotton.
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Very good.
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This is wool. And do you remember what is leather?
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Quero. Leather, cuero. We have the belts, some jackets. Some belts are made of leather.
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Plastic. This is plastic. This is plastic.
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Okay, but do you know clay? What is clay?
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Ilias?
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Not exactly.
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We can make jars, we can make buildings with the clay.
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So, we have clay, wood, glass, metal, cotton, wood, metal, plastic.
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Okay, most of them are from the natural.
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Okay? They are natural.
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More of them.
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Some of them.
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One of them, for example, the clay is from the nature, the wood is from the nature, the glass is from the nature because we make the glass using some kind of minerals like sand.
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We use sand to make glass. And we have metal, the metal is a type of rock.
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Yes, but the metal is a kind of rock, okay?
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There are some rocks that are metal, there are other rocks that are metal, okay?
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The cotton is from a plant, okay?
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There is a plant that makes cotton.
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The cotton is a plant, the wool is from the ships, okay?
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That's it.
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It's a plant, okay?
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And the wool is from the fur of the silk.
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And the leather is from the skin of the animals.
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But what happened with the plastic?
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The plastic is natural.
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Can we find plastic in the nature?
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No.
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The plastic is man-made.
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We invented the plastic, okay?
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Many years ago, there wasn't plastic.
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We will learn that later, okay?
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But, for example, a hundred years ago, there wasn't plastic.
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The plastic is something new, okay?
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Before, the box was filled with the bodies of plastic was glass, okay?
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- Subido por:
- Virginia M.
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- Fecha:
- 23 de marzo de 2021 - 11:39
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- CP INF-PRI NTRA. SRA. DE FATIMA
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