In this unit, you learned about social and personal changes from reading informational texts. you also discussed the topic of change in a group setting. imagine a social or personal change that hasn't happened yet, but you would like to see the change happen in the future. the change can be something that you want to happen in your life or that you'd like to see happen in society. discuss with others why you think the change is interesting or necessary and what role you see yourself playing. is it a change that you think you could actively pursue, or do you think you would be more of a bystander? additionally, discuss changes that others might want to see occur and how those changes are different or similar to your own ideas.

a.) it provides a clue to solve the mystery.

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21 balloons is the story of professor william sherman's travels.

in 1883, he set off from san francisco for a balloon ride over the pacific and was found a month later floating with 21 balloons in the atlantic ocean. this seemed an astounding feat and everyone wanted to know what had happened.    

professor sherman was loyal, however, and said he would tell his tale first to the western american explorers club in san francisco, of which he was a member. this built up suspense for several chapters before he began to tell of the wonders of his adventures and the amazing island of krakatoa, an island which had just been blown up by a volcano.  

the residents of krakatoa are all millionaires who live under a "gourmet government" of their own devising. we get to see all the incredible adventures that creative people with unlimited resources would create according to the author.