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