Smaller.
Both Venus and Mars are smaller than Earth but larger than Mercury.
It is a rocky planet but smaller and colder than the earth
Smaller, Mars is about half the size of Earth
There are two such planets: Venus and Earth.
Mercury, Mars, and Venus are all smaller than Earth.
It is a rocky planet that is much smaller and colder than earth.
Both Venus and Mars are smaller than Earth but larger than Mercury.
Mars is the smallest of the three. (\_(\ (^_^) ('')_(")
Venus is larger than Mars, but a little smaller than Earth.
It is a rocky planet but smaller and colder than the earth
It's a rocky planet, but is much smaller than earth and colder.
Smaller, Mars is about half the size of Earth
Smaller, Mars is about half the size of Earth
Mars
Mars is the only planet which is both smaller and colder than the Earth.
It is smaller than Earth.
Mars