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QUESTION ** HYPOTHESIS **
 * TITLE **
 * What Age Is Stronger? ** **
 * What age makes a difference in lung capacity? ** **
 * We think that a 5th grader will have more lung capacity than a 3rd grader? **
 * MATERIALS **
 * 6 balloons **
 * 2 volunteers (5th graders) **
 * stop watch **
 * PROCEDURE **

1.Gather 6 balloons ** ** 2. Have a 3rd grader and a 5th grader blow up their balloon as fast and as big as they can in 30 seconds. ** **3. Observe and record the results** ** 5. Record how fast each child blows the balloon. ** **RESULTS** ** We timed 3 third graders and 3 5th graders. One 2 fifth graders blew up their balloons. They blew up their balloons the fastest with an average time of 14 seconds and 16.3 seconds. The next three children who completed blowing up their balloons were the 3 third graders. Their times were 24, 26, and 43 seconds. Finally, the last child who was a fifth grader blew up his balloon in 1 minute and 11 seconds. **  Guess what we found out? 5th grade lungs are stronger then 3rd grade lungs because of there age. Their lungs are stronger than 3rd graders. So age does make difference in lung capacities.
 * [[image:photo2.jpg width="300" height="400"]] [[image:photo.jpg width="240" height="320"]]
 * 4. Repeat step 2 and 3, 3 times each**
 * 6. Add up each child’s time and record the average. **
 * Conclusions***