Oxygen Levels and Oxygen Levels and TemperatureTemperature

Alex, Brandon, Carly, and DanielleAlex, Brandon, Carly, and Danielle

ABCD’sABCD’s

22

ExperimentExperiment

By sending a weather balloon into the air, we By sending a weather balloon into the air, we hope to determine differences in oxygen hope to determine differences in oxygen and temperature levels. We want to know if and temperature levels. We want to know if changes in the amount of oxygen in the air, changes in the amount of oxygen in the air, effects the temperature in that area.effects the temperature in that area.

EquipmentEquipment

helium filled weather balloonhelium filled weather ballooncardboard boxcardboard boxstring string duct tapeduct tapeindustrial strength Velcroindustrial strength VelcroLabPro LabPro oxygen sensor oxygen sensor temperature probetemperature probelaptoplaptop

ProcedureProcedure

Final check of gondola securityFinal check of gondola security Insert LabPro and connect the sensor and Insert LabPro and connect the sensor and

probe then attach to balloonprobe then attach to balloon Press the Start/Stop buttonPress the Start/Stop button Allow the balloon to reach maximum height Allow the balloon to reach maximum height

(1000 ft)(1000 ft) At maximum height start to pull the balloon At maximum height start to pull the balloon

back down to the groundback down to the ground Approximately 40 minutes totalApproximately 40 minutes total

HypothesisHypothesis

We believe that as the temperature probe and We believe that as the temperature probe and oxygen sensor ascend, the oxygen levels oxygen sensor ascend, the oxygen levels will stay relatively constant, but the will stay relatively constant, but the temperature of the atmosphere will start out temperature of the atmosphere will start out higher and then decrease with increasing higher and then decrease with increasing elevation. elevation.

GraphsGraphs

Data Analysis Data Analysis

Two runs Two runs Second run successful Second run successful Lasted 35:57Lasted 35:57 Collected 2158 data pointsCollected 2158 data points At the highest elevation - temp. at the lowest At the highest elevation - temp. at the lowest At starting elevation - temp. at the highest At starting elevation - temp. at the highest Oxygen percent levels stayed within a 3% Oxygen percent levels stayed within a 3%

change range.change range.

ConclusionConclusion As predicted, the temperature levels As predicted, the temperature levels

decreased with increased elevation decreased with increased elevation and were their highest at ground level, and were their highest at ground level, while oxygen percent levels stayed while oxygen percent levels stayed relatively constant.relatively constant.

Our hypothesis was proven correct.Our hypothesis was proven correct.

Special Thanks to…Special Thanks to…

Tobin James Winery Stacy Stamm Mr. Fredriks Paso Robles Endeavour

Academy