Unit 2: points 2 and 3

Hello, everyone!!
Here you have the rest of the activities to develop the point 2 (tectonic plates and relief formation) and the activity to develop the following 3rd point (about the changes of the relief). Before starting a new point of the index, do not forget to write its title.

Point 2
Do this activity below the activities you have already done about the video that we have corrected in class. Copy these tables into your notebook and fill them in Spanish. Use the Spanish book to get the information (all the information is in the Spanish book). In order to translate the concepts into English you can use either a dictionary or the English book. There is a concept per each row. Do not forget to define it in Spanish and to translate it into English
Rotate the page to landscape orientation and use a side for each table. 

Haz esta actividad debajo de las actividades que has hecho ya sobre el vídeo que hemos corregido en clase. Copia estas tablas en tu cuaderno y rellénalas en español. Usa el libro en español para obtener la información (todo está en el libro en español). Hay un concepto por cada fila. No olvides definir cada uno en español y traducirlo al inglés. 
Por la hoja en sentido horizontal y usa una hoja para cada tabla.

Point 3

Read this text and answer the questions below. You might need the meaning of the following words. If you need it, look up the rest of the words on the dictionary.

- "To get worn down": Desgastar.
- Beat: golpear. En esta frase quiere decir que no hay nada que erosione más el Gran Cañón que el agua del río Colorado.

What causes valleys to form? Why do streams and lakes get muddy after a rain storm? Why are the rocks at the bottom of a river usually round? The answer to all these questions is EROSION!

Erosion is the process by which the surface of the Earth gets worn down. Erosion can be caused by natural elements such as wind and glacial ice. But anyone who has ever seen a picture of the Grand Canyon knows that nothing beats the slow steady movement of water when it comes to changing the Earth.

The key to erosion is something called "fluid flow." Water, air, and even ice are fluids because they tend to flow from one place to another due to the force of gravity. Of the three, liquid water is the most common agent of erosion because there's so much of it on the surface of the Earth.

a) Define in a line at most what erosion is.
b) What are the natural elements that cause the erosion?
c) What is the most common agent of erosion? Why?

Have a nice weekend!