This animation shows us going down in the water and and recording the air space ins the tube.

Pictures of divers from: http://webclipart.about.com/gi/dynamic/offsite.htm?site=http%3A%2F%2Fwww.blofield.demon.co.uk%2Fswimclip.htm

Home Page

Background Essay

Hypothesis

Method and Materials

Experiment

Lab Report

Analytic Essay

Diagram

Animation

Conclusion

Photos

Videos

Links 

Enhancements

DEEP Website

Bibliography