Showing posts with label let's go fly a balloon. Show all posts
Showing posts with label let's go fly a balloon. Show all posts

Monday, April 30, 2007

How many balloons til you become weightless?

This was McKay's first science fair. She wanted to see how many balloons it would take to lift her (53 pounds). So last Sunday we put together the experiment and found out that 25 balloons lifted exactly 5.0 ounces. On Tuesday while putting together the display we also bought some balloons to deminstrate it to the students. The only down part was when we were completely done and we had bought another 30 balloons only to remember (at midnight the night before) that latex balloons wasn't allowed in the school due to allergies. Therefore the balloons stayed home. McKay won second place.
(To figure how many balloons you would times your weight by 80.)