Sydney,+Zoe,+Allie,+Lindsey

Joined with Perry, David and Maia because we had originally combined to make the first web page and because of a lack of information and observations on our part. =**Pressure Tester Lab**= 1. **Q**:What data did your group record? Include temperature and pressure values using correct SI units

hot water: temperature-50 degrees celcius. pressure-from 100 to 117 Kpa. cold water: temperature-2 degrees celcius. pressure-from 113 to 90 Kpa.
 * A**:

2. **Q**:What observations did your group make? What did the bottle look like and feel like?
 * A**: In the hot water the bottle was firm because the heat made the bottle expand. In the cold water the bottle was squishy because all of the hot air slowed down and didnt feel as much pressure as the cold water.

3. **Q**:What conclusions can your group make? Please explain why the bottle did what it did in the two different baths. = A : We concluded that in the hot water there is more energy and pressure. Because of the heat, the atoms moved faster and expand inside of the bottle, blowing up the bottle. In the cold water there is less energy so there is less pressure. In the cold water, the atoms moved slower so the molecules have less room to expand.The bottle becomes a little deflated. = = Leaky Can Lab= 1. Q:What data did your group record? Include temperature and relative humidity values using correct SI units After the experiment: temp- 5.1 degrees celsius (inside) 24 degrees celsius (outside) humidity around can- 98.6%.

2. Q: What observations did your group make? What did the metal can look like and feel like both before and after? A:Before we started the experiment we noticed that the can was dry, shiny, silver, and was mirror like. After the can was foggy(wet)and was no longer mirror like.

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

A:Condensation was key element in this experiment. Because there was steam coming out and ice water in the can the particles clumped together and formed water vapor.Then the water vapor stuck to the can.