Mercury is the closest
planet to the sun, mercury
takes 88 days to orbit around
the sun - an incredible speed at
48 kms a second. Mercury has
very small gravitational force.
If you weigh 32 kg on earth,
you would weigh only about
12 kg on mercury.
A day on venus lasts longer
than a year.
venus rotates in the opposite
direction to most other planets.
Venus is the second brightest
object in the night sky.
Atmospheric pressure
on venus is 92 times
greater than the earth’s.
Venus is often called earth’s sister.
Mars is the fourth planet to the sun
it has largest volcano it is known as
olympus mons it takes 687 days to
go around the sun.
