This tuesday we had a guest david web he is so cool. He made learning about change in pressure alot of fun. We did alot of cool experiments, while still learning about how vacums work. I really liked how he took away the soundfrom the door bell that was so cool, I didnt know if you changed the pressure it would take away sound as well. I also liked the one when he made the marshmellow go from an already big size to an even bigger size than back to a smaller size then what we started off with. having David web come over for our long day was probably the best idea we have had all year. more blogs next week.
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