MARKING BRAINLISET AND UP TO !)) POINTS IF THIS IS CORRECT-- WILL DELETE IF WRONG

Completion
Europa a moon of Jupiter might have a liquid ocean under its ice.
Nuclear Fusion occurs in the core of the sun.
In the sun hydrogen fuses into.
is the largest and most massive planet.
is known has the cosmic vacuum cleaner.
rotates on its side.
Earth and are considered to be twins because of size and density.
Copernicus said that the solar system was heliocentric which meant the planets all revolved around the .
The ancient Greeks said that the Universe was .
Word Bank
Some words will be used twice some will not be used.
Heliocentric hydrogen Venus Our Moom
Geocentric helium Mars
Uranus fusion comet
Jupiter fission Europa