BC: The life cycle of a star ***
FC: Life Cycle of A Star
1: By: Troy & Ethan
2: Nebula: A giant cloud of dust and gas pulled together by gravity into a sphere. All the hydrogen turns to helium.
4: Main Sequence: Once a star is born it spends most of its life on the Main Sequence. It gets more massive. To become giants or supergiants a star has to move up and to the right.
6: Supergiant: When a star runs out of hydrogen in the core it will expand outward and create a supergiant.
8: Supernova: A supernova is when a star is at the end of its life. It explodes in a tremendous flash of light. It will produce silver, gold, and lead.
10: Black hole: Black holes can sometimes be a result to supernovas. The gravity in a black hole is so strong not even light can escape.