Hot Air Balloon

Well, today we flew our hot air balloons that we built last class. Our balloons were made out of tissue paper and glue. We launched our balloon 3 times today. When we built them, we had about 50 minutes of time and we could only use tissue paper and glue. After we launched it once, we repaired the holes and launched it again. After that, we decided that we could make it stay in the air even longer so we added some paper clips to the bottom rim of the balloon to weigh it down a bit. Those were our revisions to make our balloon better.  Our balloon flew the highest then. After doing that, we could've made it better and better, making more revisions or maybe even a completely new balloon. Doing this would be an example of the design process being circular and our devices being ever changing in engineering.

 This is our first attempt at flying our balloon.

This is our second attempt, with the holes repaired a little.

This is our third and last official attempt with the paper clips in.

Design Process and Highrise Tower

Our project was to use the design process to make the tallest highrise tower that could withstand a fan in our class on high. The tower had to be at least 18 inches high and had to hold a tennis ball at the top. The height was measured to the tennis ball, and if the tennis ball or tower fell down, then your tower wasn't stable. The materials that we got to use for this project were paper, tape, popsicle sticks, and string. Our design wasn't the greatest, but it was really fun to make and we were at least hoping to get the prize for the most unique tower as our's was only 19 inches, which is barely tall enough to satisfy the criteria. Unfortunately, we didn't get the most unique, but at least our's didn't fall down.