The earth.

Lesson 6.

 The earth

Objective: To learn the parts of the Earth and its layers.

Keywords: drought, equator, erosion, ocean, mantle, axis, ozone, rotation, terrain

Vocabulary

N°	English	Spanish
1	Earth	Tierra
2	Sun	Sol
3	Atmosphere	Atmósfera
4	Surface	Superficie
5	Rocky	Rocoso
6	Terrestrial	Terrestre
7	Motion	Movimiento
8	Translation	Traslación
9	Driven by	Impulsado por
10	Rotation	Rotación
11	Determinate	Determinar
12	Length	Largo
13	Solar system	Sistema solar
14	Layers	Capas
15	Made up	Componer
16	Physical	Físico
17	Geosphere	Geosfera
18	Core	Centro
19	Crust	Corteza
20	Innermost	Interior
21	Metals	Metales
22	Thickest	Más grueso
23	Outermost	Más externo
24	Bottom	Fondo
25	Quarters	Cuarto
26	Hydrosphere	Hidrosfera
27	Troposphere,	Troposfera
28	Ozone	Ozono
29	Stratosphere	Estratosfera
30	Mantle	Manto
31	hottest	Más caliente

Lesson plan n°6 – English version

Lesson plan n°6 – Spanish version

Let's learn about the earth

Earth is the third planet from the Sun and it is our home; it is the only planet known to have an atmosphere containing free oxygen, oceans of water on its surface and, of course, life. Earth is a rocky and terrestrial planet. It has a solid and active surface.

Earth was formed more than 4.5 billion years ago and has been changing ever 

The Earth is in constant motion and has two movements. The first is translation, the translational motion of the Earth moves around the Sun, driven by gravitation, in 365 days, 5 hours and 57 minutes.

The second one is rotation, this is the one in which the Earth rotates on itself causes day and night and lasts exactly 24 hours, the same as a day.

These movements determine the length of days and years and it moves with the rest of the planets and bodies of the Solar System, rotating around the center of our galaxy.     

Now, let’s learn about: The layers of the Earth

The Earth is made up of three physical elements:

·       The geosphere: this is the solid element and is divided into three layers: the core, the mantle, and the crust    

The core: It is the innermost layer of the earth. It is made up of metals and its temperature is very high.

The mantle: It is the thickest layer in the geosphere and is between the crust and the core.

The crust: It is the outermost layer of the geosphere. It is composed of rocks and in it are the continents, islands and the bottom of the oceans and seas.

·         The hydrosphere: this is the liquid element and it is the set of all the water that exists on Earth and occupies three quarters of the earth's surface.

 

·         The atmosphere: This is the gaseous element and it is the layer of air that covers the Earth and is made up of a mixture of gases and water vapor. The atmosphere is divided into two layers.

 The troposphere, which is the closest to the earth.

The stratosphere, which is where the ozone layer is located and is the layer furthest from the earth.

Since you already know about the earth and its layers it is already clear, you can carry out the following activities in order to put into practice what you have learned.

      Let's watch the following video

Let's practice!

Activity n°1

Complete the sentences with these words.            

                Activity n°2

What is the Earth made of? Put the correct names of the layer of the earth.

                 

                 Activity n°3

Movements of the Earth. Choose the correct option.

                  Activity n°4

Relate the images with the words.