Lay the deflated balloons flat and use the ruler and magic markers to make two dots that are 1cm apart. One student will blow up the balloon partially. The second student will use the tape measure and measure the distance between the two dots. Record the measurement below. The first student will continue to blow the balloon up approximately half-way. The distance between the two dots will be measured and recorded. The first student will then blow the balloon up to its full capacity (without popping the balloon) and measure the distance between the two dots and record the findings. Switch places and the recorder will then blow up his/her balloon and the blowing student will record the results. Analyze your results and discuss what happened and why. Record your conclusions from the discussion below.
Balloon | Partially Blown | Half Blown | Fully Blown
in cm |
What did you observe happening to the dots? __________________________
Why do you think this happened? __________________________