Laws ( Boyles, Gaylusaac's, Charles)

One experiment I did was to show how Boyles Law works; it involved just a straw. I twisted it until the pressure was forced into the middle of the straw and my hands were on both ends of the straw to hold in the air. As I twisted the space in the middle of the straw decreased while the pressure was building. My partner flicked the middle and it popped. Why? Well do to the increase of pressure and decrease volume, the pressure was building inside and the forced applied to the outside was too much for the inside of the straw. The loud sound was all the gas escaping. Pressure and volume increased and temperature stayed the same.

When outside pressure presses on a balloon, the volume inside increases causing the pressure to decrease. This makes the outside pressure greater than the pressure inside making the balloon burst.

http://www.google.com/imgres?um=1&hl=en&safe=off&tbm=isch&tbnid=E3zf0dXw1BLMTM:&imgrefurl=http://highhopesballoon2.wikispaces.com/Air%2BPressure&docid=tfwA7RN30l91OM&imgurl=http://highhopesballoon2.wikispaces.com/file/view/IMG_0007.jpg/222273906/IMG_0007.jpg&w=2048&h=1536&ei=Lo_BTrWVIuOA2AWY9Jy_Bw&zoom=1&iact=hc&vpx=296&vpy=291&dur=6425&hovh=193&hovw=258&tx=34&ty=92&sig=101224118638014281289&page=1&tbnh=141&tbnw=159&start=0&ndsp=27&ved=1t:429,r:8,s:0&biw=1228&bih=783
Gay-Lusaac's Law is explained by the one experiment with a hard-boiled egg, hot and cold water, and a flask. We swirled hot water around and then dumped out the water. We placed the egg on the top of the flask and put the whole thing in cold water. The egg went in.
The hot water caused the molecules to move fast and pressure to increase from the bottom of the flask. When placed it in cold water the molecules slowed down and the pressure decreased causing the force on the outside to increase and the balloon to be pushed in. Temperature and pressure changed while volume stayed the same.

http://www.youtube.com/watch?v=SQrvPY5hamY&feature=related-

Charles Law is explained by a balloon being heated up. A balloon with constant pressure was heated up and rose but when heat was removed, the balloon fell. The molecules were expanded and so the volume increased. The pressure on the outside was the same while the temperature and volume increased.

Charles Law-