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NS 3º U5 L4 Pure Substances & Mixtures - 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, Unit 5, Lesson 4, Pure Substances and Mixtures. 00:00:00
Let's start with pure substances. 00:00:11
Pure substances are forms of matter with one type of particle. 00:00:16
But what is a particle? 00:00:24
A particle is a very small portion of matter. 00:00:27
For example, diamond, gold, salt. 00:00:35
Mixtures. 00:00:42
Mixtures are forms of matter with two or more types of particles. 00:00:44
Chocolate powder would be a pure substance. 00:00:52
Milk would be another pure substance. 00:00:57
If we mix them together, they are a mixture. 00:01:03
There are two types of mixtures. 00:01:07
Heterogeneous mixtures and homogeneous mixtures. 00:01:15
First, heterogeneous mixtures. 00:01:22
we can see the different particles or pure substances for example fruit salad homogeneous 00:01:25
mixtures we can't see the different types of particles for example in this fruit juice with 00:01:38
different fruits pure substance or mixture heterogeneous or homogeneous 00:01:48
remember that golden sugar are pure substances pizza salad or juice with 00:01:55
pulp are heterogeneous mixtures and coffee shampoo and juice without pulp 00:02:06
are homogeneous mixtures. Separating mixtures. Can we separate mixtures? We can 00:02:15
separate mixtures and there are three methods that we are learning this year. 00:02:32
sieving or sieve, filtration or evaporating or evaporation. Sieve. We can separate 00:02:38
different solids by sieving. We can separate solids and liquids by filtration. 00:02:51
We can separate solids and liquids in a different way by evaporating. What method 00:03:02
are they using here? Seeth, to separate solids. What method are they using here? Filtration, 00:03:14
to separate solids and liquids. What method are they using here? Evaporation, to separate 00:03:26
solids and liquids. What method are they using here? Filtration, to separate solids and liquids. 00:03:34
What method are they using here? Sieve, to separate solids. 00:03:48
Remember that we learned a curiosity that takes place in the north of Spain, in País Vasco, 00:03:57
The thing is that these Salinas are not in the coast, they are in the field, in a valley called Valle de Añana. There we can find Salinas de Añana. 00:04:06
They've got a salt water natural spring. 00:04:23
As you can see, they evaporate water and collect salt. 00:04:30
They are using evaporation to separate solids and liquids. 00:04:38
What method are they using here? 00:04:47
cf to separate solid thank you very much for listening see you 00:04:50
Idioma/s:
en
Autor/es:
Fernando García
Subido por:
Fernando G.
Licencia:
Reconocimiento - No comercial - Sin obra derivada
Visualizaciones:
58
Fecha:
18 de mayo de 2024 - 10:25
Visibilidad:
Clave
Centro:
CP INF-PRI IPLACEA
Duración:
05′
Relación de aspecto:
1.78:1
Resolución:
1092x614 píxeles
Tamaño:
16.68 MBytes

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