The Universe - Science Language
The theory that the universe originated between 10 and 20 billion years ago from the cataclysmic explosion of a small volume of matter at extremely high density and temperature.
The regions of the surface, atmosphere, and hydrosphere of the Earth occupied by living organisms.
Something's ingredients or constituents; the way in which a whole or mixture is made up.
Elements with atomic numbers higher than iron. They are formed by supernovae explosions.
The galaxy containing the solar system; consists of millions of stars that can be seen as a diffuse band of light stretching across the night sky.
The theory that the solar and stellar systems were developed from a primeval nebula.
The size of something, especially as it compares to other things.
The collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets.