1. Life Cycle of a Star By Jake 2

2. A star begins as a a Star begins as a nebulau

3. Protostar Contraction causes a giant moleculer cloud to become a protostar.

4. A Star is Born As soon as hydrogen and helium begins the life of a star begins.

5. Star Classifications Stars are classified by Their size, their serface tempature and Their heat. You can usualy tell just by looking at them.

6. Continuing Life Cycle of a Large Mass Star The large mass star starts as a steller nursery. then it turns into a red supergiant. Then it turnes into a supernova. A supernova is, a steller explosoin. The supernova turns into a nutron star or a black hole. A black hole is a region of space where the gravitqtional pull is realy big.

7. Continuing Life Cycle of a Smaller Mass Star The smaller mass star is started by a stellar nursery. Then the star turns into a red giant. a red giant is a luminous giant star. than it turns into a, planetary nebula. A planetary nebula is a emission nebula. Then it tunes into a white dwarf star. Than it becomes a black dwarf. a black dwarf is when a white dwarf dies.