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Dotted line = Mountain fold
Dashed line = Valley fold
Revision Book
The Sun is the Star at the centre of the
Solar System. It is almost perfectly
spherical and consists of hot plasma
made from Hydrogen. The Sun
contains around 98% of all the
material in the Solar System.
Mercury is the closest planet to the
Sun and due to its proximity it is not
easily seen except during twilight. For
every two orbits of the Sun, Mercury
completes three rotations about its
Neptune is the eighth planet from the
Sun and is the most distant planet.
Solid Line = Cut along
Fifth planet from the Sun and is 2 ½
times bigger than all the other planets
in the solar system combined. The
largest of the gas giants.
Uranus is the seventh planet from the
Sun. It is not visible to the naked eye
and became the first planet
discovered with the use of a
telescope. Uranus is tipped over on its
side with an axial tilt of 98o.
Asteroid Belt
Saturn is the sixth planet from the
Sun and the most distant that can be
seen with the naked eye. It is best
known for its fabulous ring
system that was discovered in 1610 by
the astronomer Galileo Galilei.
A group of billions of rocky objects
orbiting the Sun between Mars and
Jupiter. Some asteroids are quite
large but most are smaller in size
down to the size of pebbles.
A moon is a body that orbits a planet
in the Solar System. There are over
170 natural moons that have been
discovered so far. A single moon
orbits the Earth.
Mars is the fourth planet from the Sun.
It is named after the Roman god of
war and it is often described as the
red planet due to its reddish
Small objects made of rock and ice
that orbit the Sun in very elliptical
orbits. When they pass close to the
Sun they warm up and the solar wind
from the Sun drives material away to
form a visible tail.
Earth is the third planet from the
Sun and is the largest of the terrestrial
planets. The name comes from the
Anglo-Saxon word erda which means
ground or soil.
Venus is the second planet from the
Sun and is the second brightest object
in the night sky after the Moon. Named
after the Roman goddess of love and
beauty, Venus is the second
largest terrestrial planet.
Pluto was known as the
smallest planet in the solar system
and the ninth planet from the sun.
Today, Pluto is called a "dwarf planet"
as it orbits the sun just like
other planets but it is much smaller.