2
          
        
        
          
            1.
          
        
        
          
            THE SCIENTIFIC METHOD
          
        
        
          .........................................
        
        
          
            4
          
        
        
          
            1.
          
        
        
          Science
        
        
          ......................................................................................
        
        
          6
        
        
          
            2.
          
        
        
          The scientific method
        
        
          ..........................................................
        
        
          7
        
        
          
            3.
          
        
        
          Scientific work
        
        
          ........................................................................
        
        
          8
        
        
          
            4.
          
        
        
          The research project
        
        
          .............................................................
        
        
          10
        
        
          
            5.
          
        
        
          Research project paper
        
        
          ........................................................
        
        
          16
        
        
          
            Consolidation
          
        
        
          ...........................................................................
        
        
          18
        
        
          
            Work and experimentation techniques
          
        
        
          .....................
        
        
          20
        
        
          Density of matter
        
        
          
            Final task
          
        
        
          ....................................................................................
        
        
          21
        
        
          Are beans alive?
        
        
          
            2.
          
        
        
          
            THE EARTH IN THE UNIVERSE
          
        
        
          ..............................
        
        
          
            22
          
        
        
          
            1.
          
        
        
          The universe
        
        
          ............................................................................
        
        
          24
        
        
          
            2.
          
        
        
          Our galaxy
        
        
          ...............................................................................
        
        
          28
        
        
          
            3.
          
        
        
          The Solar System
        
        
          ...................................................................
        
        
          30
        
        
          
            4.
          
        
        
          Planets in the Solar System
        
        
          ................................................
        
        
          32
        
        
          
            5.
          
        
        
          The Earth’s movements
        
        
          .......................................................
        
        
          34
        
        
          
            6.
          
        
        
          The Sun, Earth and Moon
        
        
          ..................................................
        
        
          38
        
        
          
            Consolidation
          
        
        
          ...........................................................................
        
        
          40
        
        
          
            Work and experimentation techniques
          
        
        
          .....................
        
        
          42
        
        
          Make a sundial
        
        
          
            Final task
          
        
        
          ....................................................................................
        
        
          43
        
        
          Length of days
        
        
          
            3.
          
        
        
          
            THE GEOSPHERE
          
        
        
          ..............................................................
        
        
          
            44
          
        
        
          
            1.
          
        
        
          The Earth: origin and composition
        
        
          ..................................
        
        
          46
        
        
          
            2.
          
        
        
          Minerals
        
        
          ....................................................................................
        
        
          48
        
        
          
            3.
          
        
        
          Rocks
        
        
          .........................................................................................
        
        
          52
        
        
          
            4.
          
        
        
          The use of rocks
        
        
          ....................................................................
        
        
          58
        
        
          
            5.
          
        
        
          Extraction of minerals and rocks
        
        
          ......................................
        
        
          59
        
        
          
            Consolidation
          
        
        
          ...........................................................................
        
        
          60
        
        
          
            Work and experimentation techniques
          
        
        
          .....................
        
        
          62
        
        
          The texture of rocks
        
        
          
            Final task
          
        
        
          ....................................................................................
        
        
          63
        
        
          The environmental impact of mineral extraction
        
        
          
            4.
          
        
        
          
            THE ATMOSPHERE
          
        
        
          .........................................................
        
        
          
            64
          
        
        
          
            1.
          
        
        
          Composition and structure of the atmosphere
        
        
          ...........
        
        
          66
        
        
          
            2.
          
        
        
          The importance of the atmosphere
        
        
          for living things
        
        
          ......................................................................
        
        
          70
        
        
          
            3.
          
        
        
          Air pollution
        
        
          ............................................................................
        
        
          72
        
        
          
            4.
          
        
        
          The greenhouse effect
        
        
          ........................................................
        
        
          74
        
        
          
            5.
          
        
        
          The ozone layer
        
        
          .....................................................................
        
        
          76
        
        
          
            Consolidation
          
        
        
          ...........................................................................
        
        
          78
        
        
          
            Work and experimentation techniques
          
        
        
          .....................
        
        
          80
        
        
          The greenhouse effect
        
        
          
            Final task
          
        
        
          ....................................................................................
        
        
          81
        
        
          Breathing in polluted air
        
        
          
            5.
          
        
        
          
            THE HYDROSPHERE
          
        
        
          ......................................................
        
        
          
            82
          
        
        
          
            1.
          
        
        
          Water on Earth
        
        
          ......................................................................
        
        
          84
        
        
          
            2.
          
        
        
          Properties of water
        
        
          ...............................................................
        
        
          88
        
        
          
            3.
          
        
        
          The importance of water for living things
        
        
          ....................
        
        
          90
        
        
          
            4.
          
        
        
          The water cycle
        
        
          ......................................................................
        
        
          92
        
        
          
            5.
          
        
        
          Uses of water and water pollution
        
        
          ..................................
        
        
          94
        
        
          
            6.
          
        
        
          Clean water and health
        
        
          ......................................................
        
        
          96
        
        
          
            Consolidation
          
        
        
          ...........................................................................
        
        
          98
        
        
          
            Work and experimentation techniques
          
        
        
          .....................
        
        
          100
        
        
          The salt we drink
        
        
          
            Final task
          
        
        
          ....................................................................................
        
        
          101
        
        
          Domestic consumption of water
        
        
          A digital task which allows you to investigate like a
        
        
          real scientist through the use of new technology. It
        
        
          includes activities, digital simulations, videos… all of
        
        
          which will help you understand the contents better.
        
        
          This digital activity relates to the
        
        
          
            final task
          
        
        
          which you
        
        
          have to do at the end of each unit.
        
        
          Oxford
        
        
          
            investigation
          
        
        
          +
        
        
          www