The Life Cycle of a Star

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  • Created by: caits
  • Created on: 11-04-14 11:32

Stage 1 - Nebula

A collection of dust and gas

Stage 2 - Protostar

  • Gravity pulls the particles together
  • Start to give out light
  • Nuclear fusion - forces build inside the star until they are great enough to fues hydrogen atoms together into helium

Stage 3 - Main sequence

The forces of graity pulling particles inwards are balanced by forces acting outwards due to the energy given to the partciles inside the star

Two types of main sequence star - small stars (yellow dwarfs), big stars (blue…

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