Unit 2 - PLANET EARTH

           

 In this unit we are going to learn the following contents:

• Value of water for life and knowledge of its adequate and inadequate uses.
• Parts of the Earth: atmosphere, geosphere and hydrosphere. Definitions.
• Components and layers of the atmosphere.
• Materials and layers of the geosphere. Properties of minerals. Types of rocks according to their origin.
• Phenomena produced by the energy inside the Earth.
• Minerals and their basic characteristics.
• Identification and representation of the layers of the atmosphere and their characteristics (troposphere, stratosphere, ionosphere).
• Identification and representation of the layers of the geosphere (crust, mantle and core).
• Classification of different kinds of rocks according to their origin (volcanic, sedimentary, metamorphic).
• Recognition and representation of a volcano and its basic parts.
• Representation of the Earth in different forms.
• Recognition of the basic imaginary lines of the Earth (Equator, meridians and parallels).