2
The theory which explains the origin of the Universe is called the...
3
______________ is the bigest planet
4
______________ is the smallest planet
6
Jupiter, Saturn, Uranus and Neptune are ______________ planets
7
Our planet is the...
8
Galaxies are formed by thousands of millions of
9
Mercury, Venus, the Earth and Mars are ______________ planets
10
The Earth has one natural satellite, the...
11
Our star is the...
12
It is approximately 150 million kilometers
