Red shift and The big bang
- The big bang is a theory that sceientists have been basing their ideas about the origins if the universe.
- It is believed to be a huge explosion around 14 million years ago
- Time, space and matter all began with the Big Bang.
- In a fraction of a second, the Universe grew from smaller than a single atom to bigger than a galaxy.
- And it kept on growing at a fantastic rate. It is still expanding today and has left cosmic microwave background radiation.
- The evidence for the big bang is red shift (Light patterns that tell us galaxies are moving away from us. The greater the red shift, the further away the galaxy is, and the greater the speed at which it is moving away from us).
1 of 2
A life of a star and the solar system
A life of a star
- Nebula- a big cloud od gas and dust
- Star- Gravity pulls all dust and gas into centre of nebula.
- Red giant-Star formed when the hydrogen in a star is used up
- White dwarf- Small star's life end's.
- Supernova-Explosion when a large star explodes
- Black hole or a neutron star (Very dense star)-Formed at the end of a large star's life.
Murcury - Venus - Earth - Mars - Jupiter - Saturn - Uranus - Neptune - Pluto
- Comets are lumps of ice dust and gas. They are left over from the universes beginning. Elliptical orbits.
2 of 2