 1. SOLAR SYSTEM. (Picture
of the planets).
- Learning
to describe planets.
- The Sun
lights and heats our world.
- Mercury
is the nearest planet to the Sun.
It's a tiny planet and its surface is
covered in impact craters
- Venus
is
the twin Earth planet. It's very hot because of its
dense
atmosphere.
- Mars
is
a red planet and it's colder than the Earth.
- Asteroids
are rocky bodies orbiting the Sun.
Many of them are between Mars and Jupiter forming the asteroid belt.
- Jupiter
is the largest planet in the solar system. It has a
spectacular appearance with bands of different colours.
- Saturn
is famous because of its rings. Rings
are made up of dust, ice and
rock.
- Uranus
and
Neptune are similar in size and
composition. Uranus
is the only planet that spins on its side.
- Pluto
is
a small and very unknown planet. Maybe an old satellite of Neptunus.
- Comets
are rocky fragments orbiting the Sun on a very long trajectory.They
show a long tail when
they're near the Sun. A comet looks like
this...
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 2.MOVEMENTS
OF THE EARTH.
The
Earth moves in two different ways:
rotation and
traslation. Rotation
consists of the Earth turning on its axis; the Earth takes 24 hours to
complete a full circle. Revolution
consists in the Earth's revolving around the Sun; it takes 365,25 days
to complete the full journey.
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3.THE
MOON, OUR SATELLITE.
The movement of the Earth and
moon with
respect to the Sun
causes lunar
phases
and lunar
eclipses.
| Explain
what you see on these animations. |
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