Vacuums involving pressure are way different than Vacuums that involve picking up the dust that's all around us. David and Joan Webb proved that to me on Tuesday during a presentation. I really liked the presentation because it involved ordinary objects being put into a vacuum, nd changing size dramatically! There was one that made a marshmellow grow and a water balloon! Now how did this happen? Apparently, When you suck out the air of a space, the air that is already in the object expands and makes the object bigger! So I guess I can say that vacuums involving pressure and regular vacuums are the same in some ways. They both take in all the stuff, both involving air! I really liked this presentation because I learned so much, and in such a different way than in class. It was differeent, and not to mention Mr. and Mrs. Webb! I think they were the perfect presentors for this type of presentation because they had so much personality and they are married=] I just thought that was adorable, although the Science information was good too.!
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