What are Stars luminous ball of gas and

What are Stars? luminous ball of gas and dust, mostly hydrogen and helium, held together by its own gravity. What are they made of? Gases and dust What do they burn? Hydrogen and helium

What kinds of Stars are there? Main sequence , red giant , white dwarfs, black hole, brown dwarf, variable What kind of Star do we have? Yellow dwarf What are the biggest ones? Yellow hyper giant What are the smallest ones? Red dwarf

What are the oldest stars White dwarf, black hole, neutrons What are the youngest stars? Nebula What are the brightest ones? Yellow dwarf What are the dullest ones? White dwarfs

How are stars born? Formed in nebula, interstellar clouds of dust and gas. These stellar nurseries are abundant in the arms of spiral galaxies. In the stellar nurseries, dense parts of these clouds undergo gravitational collapse and compress to form a rotating gas globule. How do starts die? Stars expand as they grow old. As their core runs out of hydrogen and then helium, the core contacts and the outer layers expand, cool, and become less bright.

Hertzsprung-Russell diagram and star life cycle

Video clips • https: //youtu. be/PM 9 CQDl. QI 0 A • https: //youtu. be/vj. FG-4 Ge 668

Quiz True or False 1. A star is made of gas and dust. 2. A star burns space fuels. 3. Biggest star is the Yellow Hyper Giant. 4. Smallest star is the Red Dwarf. 5. The brightest star is the yellow dwarf. 6. The dullest star is the white dwarf. 7. The oldest star is the Starbuck. 8. The youngest is the nebulae. 9. Stars are born from Santa. 10. Stars die when they collapse and explode.

Flash Cards https: //quizlet. com/_1 sne 6 j

Test part 1 1. What is a star? 2. What burns in a star? 3. What element does the star absorb? 4. Which star is a failed star? 5. How is a black hole created? 6. Which star is created after a supernova explodes? 7. Which star is created after it used up the hydrogen in its core? 8. What do you call a star after it is officially born? 9. Which star twinkles? 10. What does the Hertzsprung-Russel Diagram represent?

Test part 2 11. What is a star born in? 12. What is a supernova? 13. What kind of star is the sun? 14. What is the sun? 15. What galaxy are we in? 16. What is gravity? 17. Name 1 constellation? 18. Name 1 planet in our solar system? 19. Can you see a star after it dies? 20. What re stars made of?