The document discusses the Earth, sun, and eight planets in our solar system. It provides details about the Earth's orbit around the sun taking one year and its composition of 71% water. It also describes the sun as a star at the center of the solar system that formed 5 billion years ago from gas and dust. The document notes there are eight planets that orbit the sun and highlights that Mercury orbits the fastest, taking just 88 days to complete its journey around the sun. Additionally, it describes Mars as the red planet with red rocks and the largest volcano in the solar system, though there is no water on Mars today.

1. PLANETS
by Iker and Oier

2. The Earth´s orbit
We live on the Earth. It has got air we can
breath. 71 percent is water in our planet.
The Earth is 149 million kilometres away from
the sun. It takes one year to go around the sun.

3. The sun
The sun isn´t a planet. It is a star at the centre
of the solar system. it formed 5 billion years
ago from a cloud of gas and dust.
The sun´s diameter is 1,392,000 kilometres. It
is much bigger than the Earth.

4. The eight planets
There are eight planets in the solar system. All
eight planets go around the sun. The journey
around the sun is called an orbit.

5. Mercury´s orbit
Some planets take a short time to go around
the sun. Mercury orbits the sun the fastest. It
only takes 88 days to go around the sun.

6. Mars
Mars is a very exciting planet. It is called the
red planet, because it has got lots of red rocks.
The largest volcano in the solar system is on
Mars.
Billions of years ago there were rivers and
lakes on Mars. There is no water on Mars
today, but there are river valleys.