sábado, 13 de diciembre de 2014
Coordenadas Geográficas
Aquí tenéis unos vídeos para saber cómo interpretar las coordenadas geográficas.
¡Espero que os animéis a localizar cualquier punto de la Tierra!
LAS REPRESENTACIONES DE LA TIERRA
El último día en clase estuvimos hablando de las representaciones de la Tierra y de las líneas imaginarias que nos ayudan a localizar exactamente cualquier punto de la Tierra.
En este mapamundi los paralelos (líneas horizontales) y los meridianos (líneas perpendiculares) se utilizan para marcar coordenadas geográficas.
Partiendo del meridiano de
Greenwich (longitud 0º), se indican los grados que hay
hacia el este o hacia el oeste.
En este mapamundi los paralelos (líneas horizontales) y los meridianos (líneas perpendiculares) se utilizan para marcar coordenadas geográficas.
¿Cómo se interpretan las coordenadas
geográficas?
Utilizando dos distancias que se miden en grados.
·
Los paralelos indican la latitud (Norte-Sur):
Partiendo del ecuador (latitud 0º), se indica los grados que hay hacia el
norte o hacia el sur.
·
Los meridianos indican la longitud (Este-Oeste):
hacia el este o hacia el oeste.
EJEMPLOS DE COORDENADAS GEOGRÁFICAS
Tomares Latitud: 37º 22' Norte, Longitud: 6º 02' Oeste.
lunes, 8 de diciembre de 2014
UNIT 9: THE SOLAR SYSTEM
UNIT 9: THE SOLAR SYSTEM
Index:
1.1.- The Solar System
1.2.-The Sun
1.3.- Planets and Satellites
1.4.- Other celestial bodies in the Solar System
1.1.-
THE SOLAR SYSTEM
- The Solar System is made up of the Sun and
all the stars that orbit around it.
- The Earth is also part of the Solar System.
1.2.- THE SUN
- The Sun is
the closest star to the Earth.
- It is a huge mass of gasses made up of mainly
hydrogen that is shaped like a sphere.
- Because its surface is very hot, it gives us energy in
form
of light and
heat.
- When the Sun is in the sky, it is day. When we cannot see the Sun, it is
night.
1.3. PLANETS AND SATELLITES
- The planets of the Solar System do
not have their own light.
- They spin around their own axes and
orbit around the Sun.
- Almost all the planets have satellites.
Satellites are celestial bodies without their
own light that
orbit around a planet.
The eight planets of the Solar System
are classified into two groups:
Inner planets:
|
Outer planets:
|
- They are the closest to the Sun.
|
- They are the farthest from the Sun.
|
- They are smaller than the outer planets.
|
- They are much larger than the inner planets.
|
- They have a solid rock surface.
|
- They are made up of gasses like hydrogen and helium.
|
- Their density is high.
|
- Their density is low.
|
Inner planets are:
Mercury, Venus, Earth and Mars.
|
Outer planets are:
Jupiter, Saturn, Uranus and Neptune.
They are surrounded by many satellites.
|
1.4.- OTHER CELESTIAL BODIES IN THE
SOLAR SYSTEM
Our solar system is also made up of asteroids,
meteorites, comets and dwarf planets (planetas enanos).
·
Asteroids:
- They are fragments of rock or metal that move around the Sun.
- They are smaller than planets.
- Most of them are placed between Mars
and Jupiter what is called asteroid belt.
·
Meteorites:
- They are craters formed on the surface when asteroids hit (impactan
sobre) a planet or a satellite.
- Small meteorites that disintegrate in our atmosphere are called shooting
stars.
·
Comets:
- They are made of rock and ice.
- They come from two areas: The Oort Cloud (la
Nube de Oort) and The Kuiper Belt (el Cinturón de Kuiper).
- Solar energy evaporates the ice which forms the tail. This glowy path
(estela luminosa) can have millions of kilometers.
·
Dwarf planets:
- They are smaller than planets.
- They orbit the Sun further away than Neptune.
- Pluto is the most well known.
ACTIVITIES
– SOLAR SYSTEM
·
1. Match the two columns.
·
They are made up of gases.
Inner Planets They are far from the Sun.
They are small (the Earth is one of them).
Outer Planets They are very large.
They are close to the Sun.
Inner Planets They are far from the Sun.
They are small (the Earth is one of them).
Outer Planets They are very large.
They are close to the Sun.
·
·
2. Write the names of the planets.
a) Inner planets: _______________________________________________________________
b) Outer planets: _______________________________________________________________
a) Inner planets: _______________________________________________________________
b) Outer planets: _______________________________________________________________
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