1
It is a magnitude referred to the common notions of heat or cold
2
First period of the origin of life
3
Very ardent or fiery
4
A huge explosion that, according to a scientific theory, marked the origin of the universe. This theory states that the universe originated 13.8 billion years ago.
5
A grouping of stars, celestial bodies and cosmic matter that is concentrated in a certain region of space by gravitational attraction and constitutes a unit in the universe
6
. Last period of the origin of life
7
A solid celestial body that revolves around a star and emits no light of its own.
8
. It is a colorless, odorless gas found in air, water and living things; it is essential in respiration and combustion, is used in welding and is administered to patients with respiratory problems or to people flying at high altitudes.
9
Liquid substance without odor, color or taste found in nature in a more or less pure state forming rivers, lakes and seas, occupies three quarters of the planet Earth and is part of living beings; it is made up of hydrogen and oxygen.
10
Essential quality of animals and plants, by which they evolve, adapt to the environment, develop and reproduce.
Crear