Shadowing Practice: Build Earth from the Inside Out! - #sciencegoals - Learn English Speaking with Video
Creando lección...
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Our planet is an amazing place … but there are parts of it that no one has ever seen!
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Like where?
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Like in the middle!
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No one has ever been to the center of the Earth, not even close!
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The deepest hole that’s ever been dug didn’t even make it through the thinnest, outer layer of Earth’s four amazing layers.
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But even if you could go deeper than that, you’d have a really hard time digging!
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Because those inner layers of the Earth get really hot!
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So today, we’re going to get as close as we can to seeing the center of the Earth, by building a model of our planet!
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First, let’s go through what we know about Earth’s four main layers.
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The first layer is the one you’re on right now!
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It’s called the crust.
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The crust is the outermost layer of our planet, and it includes all of the land you can see … as well as the land that you can’t see, like the very bottom of the ocean.
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The crust is also the thinnest of Earth’s layers.
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But even so, we’ve never been able to dig all the way through it!
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The crust is nice and cool on the outside, but once you dig down a kilometer or so, it starts to get really warm really fast.
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And the deeper you go, the hotter it gets!
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By the time you reach the bottom of the crust, it’s too hot for anything to live in!
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Now, after the crust comes the second layer: the mantle.
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It’s the thickest of all of Earth’s layers.
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This layer is so hot that the rocks that make up the mantle are actually melted!
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But we’re not done yet!
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The third layer is the outer core, and beneath that, at the very center of the Earth, is the fourth layer, the inner core, the hottest of all the layers!
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Now that we know each of the Earth’s layers, we can make a model of our planet, from the inside out!
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All you’ll need is a bunch of different colors of art clay.
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You can use whatever colors you like.
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But I’m going to use red, orange, yellow, brown, green, and blue.
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Each layer in our model is going to have its own color, so we can tell them apart.
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Now, what kind of temperature do you think of when you think of the color red?
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I think hot!
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So let’s use red for the hottest layer, the inner core.
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Orange doesn’t seem as hot to me, but it does seem warmer than yellow, so we’ll use orange for the outer core.
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Then let’s use yellow for the mantle, and brown for the coolest layer, the crust.
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But what about the green and blue?
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We can use these colors to make the continents and the oceans, that is, the big masses of land and water, they’re parts of the crust, too.
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Ok, so, let’s start with our innermost layer, the inner core.
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We’ll take some red clay and roll it into a ball between our hands.
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Once we have our inner core, let’s take some orange clay and wrap that around the red ball.
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Our Earth is growing!
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And the outer core is... almost done.
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There! Next, we’ll put on a layer of yellow, which will be our mantle.
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Do you remember what’s special about this layer?
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The mantle is the thickest of Earth’s layers!
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So let’s add a little bit of extra yellow to make sure it’s nice and thick.
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This looks great!
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Now we’ll cover the mantle with brown, for our crust.
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The crust is the thinnest layer, so we won’t use as much clay for that.
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There we go!
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We got the crust done!
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But we still have the blue and green left over to make continents and oceans.
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You can shape the continents to make them look like they do on your globe, or you can make them look however you like.
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It’s your model after all!
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This looks great!
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But now that our model of Earth is done, we can’t see the layers inside.
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So let’s ask a grown-up for help, because I have an idea!
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Ask them to find a butterknife and very carefully cut your globe in half.
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Ooooo! Look at that!
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You can see all of the layers.
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On the outside is the crust, second is the big yellow mantle, next is the outer core, and finally the very middle is the inner core.
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That’s right Squeaks, it does look really cool!
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But there are lots of other ways you can make your own Earth!
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You can try making Earth’s layers with colored construction paper.
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Or if you want to take a more delicious route, you and a grown up can make a four-layered cake, with each layer colored to represent a layer of the Earth!
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Get creative and have fun!
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Thank you for joining Squeaks and me to create the Earth from the inside out, and we’d like to give a big thank you to Google Making Science for helping us make this episode!
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Do you have a globe you want to share with us?
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Or do you have more questions about Earth?
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We’d love to hear from you!
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Just grab a grown-up and leave us a comment down below, or send us an e-mail to [email protected].
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And we’ll see you next time!
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Vocabulario y notas de pronunciación para esta lección
Este vídeo tiene 69 frases y 904 palabras para practicar shadowing. La parte hablada dura 5:19. El hablante habla a un ritmo natural de unas 170 palabras por minuto, cercano a una conversación cotidiana. El 86 % de las palabras está entre las 3.000 más comunes del inglés; conviene repasar el resto antes de empezar.
Vocabulario clave de este vídeo
15 palabras menos comunes del vídeo, con su pronunciación y significado:
- layer /ˈleɪ̯ɚ/ (sustantivo) — capa, tongada. A single thickness of some material covering a surface.
- crust /kɹʌst/ (sustantivo) — repulgue, repulgo. A more solid, dense or hard layer on a surface or boundary.
- mantle /ˈmæn.təl/ (sustantivo) — manto, pendil. A piece of clothing somewhat like an open robe or cloak, especially that worn by Orthodox bishops.
- clay /kleɪ/ (sustantivo) — arcilla, barro. A mineral substance made up of small crystals of silica and alumina, that is ductile when moist; the material of pre-fired ceramics.
- thick /θɪk/ (adjetivo) — grueso, espeso. Relatively great in extent from one surface to the opposite in its smallest solid dimension.
- globe /ɡloʊb/ (sustantivo) — globo terráqueo, globo terrestre. The eyeball.
- continent /ˈkɑntɪnənt/ (sustantivo) — continente. One of the main contiguous landmasses, separated by water or geological features, on the surface of a planet, sometimes including its continental shelves and…
- carefully /ˈkɛɹf(ə)li/ (adverbio) — cuidadosamente. With care; attentively, circumspectly.
- delicious /dɪˈlɪ.ʃəs/ (adjetivo) — delicioso, sabroso. Pleasing to the sense of taste; tasty.
- outer /ˈaʊtɚ/ (adjetivo) — exterior, externo. Outside; external.
- beneath /bɪˈniːθ/ — bajo de, abajo de. Below.
- dig /dɪɡ/ (verbo) — ahondar, cavar. To move hard-packed earth out of the way, especially downward to make a hole with a shovel. Or to drill, or the like, through rocks, roads, or the like. More…
- wrap /ɹæp/ (verbo) — envolver, fajar. To enclose (an object) completely in any flexible, thin material such as fabric or paper.
- melt /mɛlt/ (verbo) — derretirse, fundirse. To change (or to be changed) from a solid state to a liquid state, usually by a gradual heat.
- kilometre /kɪˈlɑmɪtəɹ/ (sustantivo) — kilómetro, quilómetro. An SI unit of length equal to 10³ metres. Symbol: km
Phrasal verbs que vas a escuchar
- grow up (verbo) — crecer. To mature and become an adult.
- go through (verbo) — atravesar. To travel from one end of something to the other.
- hear from (verbo) — oír de, oír de parte de. To receive updates or opinions from (someone).
- look at (verbo) — mirar, funar. To observe or watch.
- make up /ˌmeɪk ˈʌp/ (verbo) — reponer, suplir. To constitute, to compose.
- put on /ˌpʊt ˈɒn/ (verbo) — ponerse. To don (clothing, equipment, or the like).
Pronunciación a tener en cuenta
El hablante usa 20 contracciones y formas reducidas, como we'll, can't, we'd. Dilas en su forma corta, tal como las oyes.
- Los sonidos de “th”: thin /ˈθɪn/, thick /θɪk/, beneath /bɪˈniːθ/
Cómo practicar con este vídeo
- Escucha el vídeo entero una vez sin hablar y anota las palabras que no conoces.
- Empieza a velocidad 0,75×, haz shadowing frase por frase y vuelve a la velocidad normal cuando te resulte fácil.
- Grábate y compara con el original, prestando atención a palabras como layer, crust, mantle.
Gramática en este vídeo
Las estructuras que más usa el hablante, con las palabras exactas del vídeo:
| Estructura | En el vídeo |
|---|---|
| Present perfect have/has + participio pasado — una acción pasada que sigue importando ahora | has ever seen · has ever been · we've never been |
| Voz pasiva be + participio pasado — importa lo que ocurre, no quién lo hace | been dug · are actually melted · is done |
| Superlativos the -est / the most … — lo más alto o lo más bajo de un grupo | The deepest · the thinnest · the thickest |
| Comparativos -er than / more … than — comparar dos cosas | deeper than · warmer than |
¿Qué es la Técnica de Shadowing?
Shadowing es una técnica de aprendizaje de idiomas respaldada por la ciencia, desarrollada originalmente para la formación de intérpretes profesionales y popularizada por el políglota Dr. Alexander Arguelles. El método es simple pero poderoso: escuchas audio en inglés nativo y lo repites en voz alta de inmediato, como una sombra que sigue al hablante con solo 1-2 segundos de retraso. A diferencia de la escucha pasiva o los ejercicios de gramática, el shadowing obliga a tu cerebro y músculos de la boca a procesar y reproducir simultáneamente patrones de habla reales. Las investigaciones muestran que mejora significativamente la precisión de la pronunciación, la entonación, el ritmo, el habla conectada, la comprensión auditiva y la fluidez al hablar, convirtiéndola en una de las metodologías más efectivas para la preparación del IELTS Speaking y la comunicación en inglés en el mundo real.