Our solar system formed from a mass of stellar dust that concentrated into a hot ball (the Sun) and smaller balls that became the planets. There are nine planets that orbit the Sun - four inner planets made of rock (Mercury, Venus, Earth, Mars) and five outer planets made of gases (Jupiter, Saturn, Uranus, Neptune). The Earth is unique in supporting life and is mostly covered in water. It rotates, causing day and night, and revolves around the Sun, causing the seasons. The Moon orbits the Earth and reflects sunlight, appearing bright at night. Landscapes on Earth include mountains, valleys, islands, deserts and more.

1. PLANETS
PLANET EARTH
LANDSCAPES ON EARTH

2. Origin of our solar system
Our solar system
was a mass of
stelar dust that
started to turn
around, and
when it
concentrates, it
turns into a very
hot ball that is
the sun, a star.
The matter that
is outside forms
small balls that
are our planets.

3. In our solar system, nine planets circle around our Sun.
The Sun is in the middle while the planets travel in
circular paths (called orbits) around it

4. Inner Planets: Closest to the Sun and made of rock.
The are: Mercury, Venus, Earth and Mars.
Mercury is the smallest and nearest planet to the Sun, so it´s very
hot.
Venus is almost the same size as the Earth. It is the hottest planet.
Earth is our planet and is the largest of all the four inner planets.

5. Outer Planets.They are the farthest away from the
Sun planets, made up of gases.They are very large.
Jupiter is the
largest planet.
Saturn is
surrounded by a
ring
made up of rock
and dust.
Uranus is
surrounded by a
small ring.
Neptune
The farthest away
and the coldest.
planet

6. If we compare the size of the Sun with the sizes of
the Planets, we can see that the Sun is much bigger.

7. Asteroids are pieces of rock in the space.They
have no ice and the Comets do have ice.

8. Comets are celestial bodies made of rock and ice that
move around the space and the tail means that the
ice is melting while they travel.

9. Galaxy and Milky Way. A galaxy is made up of million
of stars. One of them is the Sun and many others
have their own system.

10. The Earth is the planet where we live. Most of The
surface is covered by water this is why is called: “
the Blue Planet”
The land is made up
with continents and
islands.
The water can be
found in the seas,
Oceans, rivers, lakes,
ponds…
The Earth is
surrounded by a layer
of air called the
Atmosphere.

11. THE MOON
The Moon is a
satellite of the
Earth. The Moon is
much smaller than
the Earth.
There are many
holes on its surface
called craters. It
does not give off
light. It looks
bright because it
reflets light from
the Sun.

12. DAY AND NIGHT
The Earth
rotation causes
the changes from
day to night. The
sun does not
move. The Earth
moves around the
Sun and on its
axis. This is
called rotation
and it takes 24
hours, one day.

13. One complete
The Earth Rotation. The Earth orbits orbit takes
the Sun. 365 days.
This is called
an Earth
revolution or a
year.
Earth
revolution
causes the
four seasons.
To see the Earth rotation: www.youtube.com/watch?v=8Vmmv0gOfWw

14. The Sun is a star. Stars are like giant balls of fire.
Life on Earth is possible thanks to the light and heat
from the Sun

15. The Moon orbits the Earth. It takes
28 days. This is called “lunar month”
Full
First Crescent
Crescent Moon Moon Last
quarter
Moon quarter
New Moon
New
Moon

16. LANDSCAPES ON EARTH
•

17. Inland landscapes: mountains and
lakes

18. Inland landscape: a valley. It´s a plain
land between mountains

19. Island: piece of land surrounded by
water

20. Inland landscape: a desert

21. MADE BY
MªAngeles Cola
• English teacher in a bilingual school
• Presentation for Primary Education.