Think of something that you would really like to purchase, but your limited resources prevent you from buying it. Using the ideas you learned in this lesson, write a paragraph explaining how your desire for that item might impact your actions. What things might you do that you would not normally do? What things might you give up in order to purchase the item?

Match each theory with its description. 1. oscillating universe theory 2 the universe came from a very dense, very hot "fireball" that exploded and expanded into existence. 2. inflation theory 3 the universe is a never-ending cycle of big bangs and big crunches. 3. big bang theory 4 the universe has always been and continues to be the same. 4. steady state theory 1 a very, very fast expansion and acceleration of the universe happened milliseconds after the big bang.