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Evaporation InvestigationMission 7 Project from
Thomas Edison Energysmart Charter School - NJ
Co-Principal Investigators :Kareena Kapadia - 5th Grade
Meghan Gajula - 5th Grade
Natalia Arevalo - 5th Grade
Mrs. Ghosh, TEECS - Teacher Facilitator
Mr. Yildiz - Principal
Mr. Nagaraju Gajula - Parent Advisor
Evaporation Investigation
Franklin Park NJ
Mission 7
The QuestionDoes microgravity have any effect on the rate of water evaporation from our human body and foods?
We know water evaporation depends on many factors, mainly:• Relative Humidity of the air• Temperature of the air and the water• Surface area of the water • Pressure on the water• Velocity of the wind/air over the water
RationaleEvaporation constantly happens
Water evaporates from everything, from fruits to vegetables to our body
Astronauts live in space for long periods of time
It is important to understand how evaporation differs in microgravity
It is essential to know how long fruits and vegetables will stay fresh in space for future colonization
MaterialsWe will use common materials we find in our household to conduct this experiment
Packets of non saturated silica gel
Water
Cotton
Small cups to weigh silica gel, cotton, and water
Water dropper, scissors and tweezers
Weighing scale that measure to nearest hundredth of a gram
Experiment In our experiment, we will simulate water evaporation, and use humidity as a driver
In the FME, we will place cotton containing a few drops of water, and Silica Gel
The silica gel will absorb moisture from the air within the FME, and forces the water from the cotton to evaporate
We will run this investigation in ISS and on earth
AnalysisUsing the recorded data, we will calculate the weight of water evaporated by weighing different materials.
Water evaporated is
Difference between weight of water before and after
OR
Difference between weight of silica gel before and after
ConclusionOutcome 1: Evaporation rate is different between ISS and Earth
Microgravity has some effect on water evaporation
Outcome 2: Evaporation rate is same between ISS And Earth
Microgravity has NO effect on water evaporation
Supported By:We are thank full to all the members of the community, sponsors and supports of SSEP for making this happen.
TEECS staff administration and students
TEECS PTO
NJ Department of Education
Smithsonian National Air and Space Museum – Washington DC
Center for the Advancement of Science in Space (CASIS)
Subaru of America, Inc.,
Big Kid Science
NASA Nebraska Space Grant Consortium
Carnegie Institution of Washington
Carnegie Academy of Science Education