Brendan,+Jake,+Alec,+Daniel,+Jacob


 * Pressure Tester**


 * 1. What data did your group record?** **Include** **temperature and pressure values using correct SI units**

Temperature 1 (hot): 43.5 degrees C Pressure 1 (hot): 101.52 kPa

Temperature 2 (cold): 4.2 degrees C Pressure 2 (cold): 97.51 kPa


 * 2. What observations did your group make? What did the bottle look like and feel like?**

We observed that when the bottle was put in cold water it deflated and was easy to squeeze, but when we put it in warm water the gas inside expanded making it tight and hard to squeeze. Also when the bottle was put into cold water it began collapsing.


 * 3. What conclusions can your group make? Please explain why the bottle did what it did in the two different baths.**

It shrunk in the cold water because the gas inside condensed so the pressure decreased. The bottle expanded in the warm water because the gas inside expanded so the pressure increased.

By doing this experiment, we proved that temperature equals motion. When heated, the air expanded because the particles gained sufficient momentum needed to break free of their attraction to each other. When placed in cold water, the particles slowed and gave less opposition to t​heir bonds. When cooled, the air in the bottles gave into their attraction and compressed into a smaller, denser volume.
 * Conclusion:**


 * Leaky Can**
 * What data did your group record? Include temperature and relative humidity values using correct SI units**

The temperature of the cold water in the can hung steadily around 3.7 degrees Celsius. The humidity was around the 99.5% margin, but at several points in the experiment, even peaked at above 100%.


 * What observations did your group make? What did the metal can look like and feel like both before and after?**

The paint can felt cold before the experiment, due to the fact that it was filled about halfway with ice and colored water. The can was dryed by a paper towel before the experiment. Afterwards, not only did the can become wet, but also the can grew slightly warm because of the water from the air.


 * What conclusions can your group make? Please explain why the metal can did what it did. Please be very descriptive in your explanation.**

The paint can, was filled with ice, and colored water about halfway and there was a water heater containing boiling water on a nearby counter, humidifying the air with steam. There was a humidity measurer to check the water in the air next to the can. As a result of condensation, the water vapor in the air cooled and clung to the outside of the can in the form of liquid water.This was a example of condesation. The water inside the paint can was cold throughout the experiment, and was being monitored by a thermometer inside the can. The results of the temperature were stored on the computer under a program named Logger Pro.