Life Cycle of a Star - Presentation

Summary

This presentation covers the life cycle of a star, including the formation from nebulae, the different stages like red giants and white dwarfs, and the violent deaths of massive stars via supernovae. The presentation also discusses how a star's mass determines its future.

Full Transcript

Life Cycle of a Star Copy Me! Unit Objective ⋆ Predictable phenomena on Earth, including seasons and eclipses, are caused by the relative positions of the sun, Earth and the moon 2 Lesson Objective Success Criteria ⋆ Under...

Life Cycle of a Star Copy Me! Unit Objective ⋆ Predictable phenomena on Earth, including seasons and eclipses, are caused by the relative positions of the sun, Earth and the moon 2 Lesson Objective Success Criteria ⋆ Understand that all ⋆ Explain the main stars have a life cycle characteristics of which results are based different types of stars upon the mass of the star ⋆ Explain the life cycle of a star and how its impacted by its mass 3 Copy Me! Stars ⋆ Are formed in clouds of dust and gas, called nebulae ⋆ Nuclear reactions occur in the core which provides the energy to shine light into the universe 4 Copy Me! Stars ⋆ Nuclear reactions give off massive amounts of heat and light ⋆ Stars are luminous objects ⋆ Surface temperatures can reach between ⋆ Range in colours from red to blue- white 5 Copy Me! Stars ⋆ The lifetime of a star depends on its originating size ⋆ Average or massive ⋆ Massive stars burn through their fuel (gas) much quicker than smaller stars (slow burn) ⋆ Smaller stars have a longer lifespan due to this slow burn 6 Copy Me! Sourced from 7 8 Stars ⋆ When the Hydrogen gas comes to being completely used up stars enter the final stages of their life ⋆ Over time, they will become red giants ⋆ The mass of the star then dictates the end of the star 9 Copy Me! Stars ⋆ Average stars experience peaceful ends by entering a planetary nebulae phase and then shrinking into a white dwarf ⋆ Massive stars have a violent end ⋆ Undergoes a supernova ⋆ Becomes either a neutron star or a black hole (determined 10 by mass) Copy Me! 11

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