BIOGEOSPHERE
Bilingual Biology and Geology
I.E.S. "J.S.Elcano (Sanlúcar Bda.)
1.2. Components and origin of the Universe
The Universe is all the matter, energy and space that exist.
The theory which explains its origin is called the Big Bang.
According to this theory a giant explosion created the Universe. Matter, at very high temperature, expanded and got cooler to form huge clouds of gases called nebulae.
Those nebulae developed into galaxies formed by thousands of millions of stars.
The Universe is made up of galaxies.
Galaxies are made up of stars,
interstellar dust and gases.
They are separated by enormous distances
and are grouped in galaxy clusters.
Our galaxy is the Milky Way.
It is a spiral galaxy with four arms.
It belongs to the Local Group galaxy cluster.
Stars are celestial bodies which emit their own light.
They are made up of hydrogen (H) and helium (He).
Their temperature is very high and their nucleus
suffers nuclear reactions which release
a large amount of energy, light and heat into the space.
A galaxy can have between 100,000
and 500,000 millions of stars.
Among them, there are huge clouds
of gases and interstellar dust.
Our star is the Sun
and it is located in one of the arms
of the Milky Way.
Many stars have planetary systems.
Our planetary system is the Solar System.
It is made up of eight planets.
Planets are bodies which orbit a star.
Our planet is the Earth.
Some planets have satellites.
They are bodies which orbit a planet.
The Earth has one natural satellite,
the Moon.
READING ACTIVITIES
After reading the text, copy and answer the following questions into your notebook:
Remember: you must make complete sentences.
1.5. Which are the main components of the Universe?
The main components of the universe are...
1.6. Indicate the name of:
- Our galaxy ..................The name of our galaxy is...
- Our star .....................
- Our planetary system....
- Our planet ..................
- Our satellite ................
1.7. Define:
- Universe ..................... The Universe is...
- Star ...........................
- Planet .........................
- Satellite ......................
1.8. What is the theory that explains the origin of the Universe?
How it do it?
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.
(Diccionario Ing-Esp)
(Juegos de vocabulario)
(Visual dictionary)
(Visual dictionary)
(Glosario de C. Naturales)
(Science audio-glossary)
(Science audio-glossary)
(Pronunciación)
(Enciclopedia de C. Naturales)
(Tabla periódica)
Eva Mª
López Rodríguez
Departamento
Biología y Geología
IES " J. S. Elcano"
Sanlúcar de Barrameda