Jack,+Adam,+Sydney+J

=Pressure tester=

Before understanding what the numbers mean, one should know what the SI units mean and where they come from. SI units are an internationally accepted coherent system of physical units. It is the modern system of measurements. Anders Celsius was born in 1701. His grandfathers were all professors of either astronomy or math, and it was recorded that Anders excelled in mathematics from an early age. After taking part in a French exploration, Anders created his thermometer based on his meteorological observations. This is how the measurement of temperature Celsius was created.

KPA is the abbreviation for "kilometer put aside". It is a unit created for air pressure. When writing the pressure, KPA is used without a percent sign.

Before exposing the bottle to the water, the temperature of the cold water was 5 degrees Celsius. The temperature of the hot water was 42.5 degrees Celsius. The pressure was 98.96 KPA. When the bottle was in the hot water the temperature was 41.5 degrees Celsius and the pressure in the bottle was 110.5 KPA. When the bottle was in the cold water the temperature was 4.3 degrees Celsius and the pressure in the bottle was 97.9 KPA. In no water, the pressure in the bottle was 99.0 KPA.


 * || Average Pressure (KPA) ||
 * Hot Water || 110.5 ||
 * Control || 99.0 ||
 * Cold Water || 97.9 ||


 * || Average Temperature (Celsius) ||
 * Hot Water || 42.4 degrees ||
 * Cold Water || 4.9 degrees ||

In the hot water, the bottle expanded. In the cold water, the bottle compressed. We learnt from the expansion of the bottle in hot water that hot air expands because it has more heat (energy). Which means that the molecules are moving faster in hot air or water than room temperature air or water. We learnt from the compression of the bottle in the cold water that cold air has less energy, so the molecules moved closer together, making the bottle compress. Which means that the molecules are slowing down.

My group can conclude that hot water molecules move faster than cold water molecules. This caused the molecules to move faster in the hot water. Then, they started to move faster while spreding apart which caused the bottle to expand. The opposite occurred in the cold water. In the cold water, the molecules were not moving fast so they were not banging on the side of the can. The can then compressed a little becuase the cold molecules slowed down and and moved closer together, making the can compress.

=Leaky can= Temperature is the measurement of how fast particles are moving in matter. The higher the temperature, the faster the particles move. There are three different ways to measure temperature: Celsius (which is the SI unit), Fahrenheit, and Kelvin. Humidity is the measurement of how much water vapor is in the air. Knowing what the amounts of humidity is important; humidity can affect the conditions of one's house.

The temperature inside the can with the water and ice was 7.4 degrees Celsius, and the temperature outside of the can was 21.4 degrees Celsius. The humidity of the air around the can was 103.4%.
 * || Temperature (Celsius) ||
 * Inside of the can || 7.4 degrees ||
 * Outside of the can || 21.4 degrees ||

Before water and ice were put in the can, the metal was shiny and reflective, it was circular, black on the inside, and it was dry. When ice was added, the only thing that changed was that condensation appeared towards the bottom of the can. When water was added to the can with ice the condensation spread over the visible parts of the can. The water was clear on the outside while it was green on the inside.

My group learnt that the water must have condensed otherwise the color of the water on the outside of the can would have been green because of the green food coloring that we added before, but since the water stuck to the outside of the can did not change to the color green then the water must have condensated. The water condensed because the humidity was above average, so one can assume that humidity affects the condensation of water.