1. The universe
1.1. First ideas about the Universe
Historical theories to explain the structure of the Universe are two:
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.
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!
LISTENING ACTIVITIES
Download this worksheet
and complete it,
while you listen this audio.
SPEAKING ACTIVITIES
Now, in turns with your partner,
answer the questions in the worksheet.