Unit 1: The Earth in the Universe                                            1   2   3   4

 

 

1. The universe

 

1.1. First ideas about the Universe

Historical theories to explain the structure of the Universe are two:

 

  • Geocentric theory 

 

        It was proposed by ancient greeks

        and after modified by Ptolomy

        in the 2nd century BC.

 

        This theory says that the Earth

        stays in the center of the Universe

        and the stars, the Sun, the planets

        and the Moon revolve around it.

  • Heliocentric theory

 

        It was enunciated by

        Nicolas Copernicus in 1543.

              

        This theory says that the Sun

        stays in the center of the Universe

        and the stars, the Earth

        and the planets revolve around it.

        The Moon revolves around the Earth.

Nowadays we know that both models are wrong.

 

Neither the Earth nor the Sun are in the center of the Universe at all, but it is true that the Earth and the rest of planets revolve around the Sun and the Moon revolves around the Earth.

 


READING ACTIVITIES

 

After reading the text, copy and answer the following questions into your notebook:

Remember: you must make complete sentences.

 

1.1. What is the difference between the heliocentric theory

       and the geocentric theory?  

 

1.2. Which of them is older? What is wrong in both?

 

1.3. Who enunciated the geocentric theory? And the heliocentric theory?

   

1.4. What celestial body does the Moon orbit in every theory?

 

 

 

Now,

check

your

answers!

1. 1. First ideas about the universe (An
Documento Adobe Acrobat 40.4 KB

LISTENING ACTIVITIES

 

Download this worksheet

and complete it,

                 while you listen this audio.

1.1. The Universe and the Solar System.p
Documento Adobe Acrobat 399.6 KB

SPEAKING ACTIVITIES

 

Now, in turns with your partner,

answer the questions in the worksheet.

 

   

1   2   3   4


   

  Wordreference

  (Diccionario Ing-Esp)

  

  Wordreference games 

  (Juegos de vocabulario)

  

  Merrian Webster

  (Visual dictionary)

 

  Infovisual

  (Visual dictionary)

  

  Eduplace

  (Glosario de C. Naturales)

 

  Linguaframe 1ESO

  (Science audio-glossary)

 

  Linguaframe 2ESO 

  (Science audio-glossary)

  

  Oodcast

  (Pronunciación)

  

  Glossopedia

  (Enciclopedia de C. Naturales)

 

  Web elements 

  (Tabla periódica)

 

 

  Eva Mª

  López Rodríguez

 

  Departamento

  Biología y Geología

 

  IES " J. S. Elcano"

  Sanlúcar de Barrameda