Transcript Kansas City, Missouri/Kansas, Team 2

Will Sunflower Seeds Grow in
Microgravity
Kansas City, MO Mission 7 Flight Experiment
Team Members
Team: N.O.W.A.S.S.S.E.P
Grade Level: 6th-7th grade
School: Crossroads Academy of Kansas City
Principal Investigator: Saul Rodriguez
Co-Investigators: Kevin Alvarez
Jorge Ortiz
Collaborators: Michyla Westbrook-Samuels
Nautica Wiggins
Teacher Facilitator: Kristen Marriott, Crossroads Academy of Kansas City
Proposal Abstract
Will sunflower seeds or Helianthus annuus germinate in
microgravity? We think that the sunflower seeds will germinate in
microgravity because, they are going to have purified water to help
them germinate. We will open the clamp for the water and the seeds
mix and shake for 10 seconds. We are doing this because sunflower
seeds are healthy, and can be a source of food. When the FME
comes down from microgravity, we will see if seeds have begun
germination.
The Question to be Addressed
● The question that we are asking is will sunflowers ( Helianthus annuus) germinate in
microgravity?
● This will be done in microgravity because we want to see if sunflower seeds will at least
germinate so maybe NASA will grow sunflowers in space. Also, because they're healthy and
edible.
● They are healthy because they control cell damage.
● They play a role in preventing cancer. They also have a good source of selenium, magnesium,
and copper.
● They can keep you calm and lower your stress and blood pressure. They also are a good source of
Vitamin E, which contains bone healthy minerals.
● Sunflower seeds can ease every condition that’s inflammatory in nature.
● We also choose sunflower seeds because each flower produces a large amount of seeds.
● We think that if the sunflower can germinate in microgravity then it will also be able to grow so
that the space station could have healthy sunflower seeds.
● We are testing germination instead of full plant growth because the FME is too small for a full
grown sunflower to grow.
● Growing plants in space will be useful because we will know if plants and other natural things
can germinate or even grow in microgravity. So if the sunflower germinates then we will know that
it is possible for fruit plants or vegetables to grow as well. Also it will be healthy for the astronauts
to eat fruits and vegetables instead of fattening foods.
Experiment Materials
Fluids Mixing Enclosure (FME) Type proposed to be used: Type 3 FME
List of Proposed Experiment Samples
Volume 1
3.5 milliliters of purified water
Volume 2
6 sunflower seeds ( Helianthus annuus)
Volume 3
3 milliliters of 10% neutral buffered formalin
Proposed Timeline of Crew Interactions
U=14 :Open Clamp A, shake vigorously for 10 seconds
U=2 : Open Clamp B, shake vigorously for 10 seconds
Experiment Design
● This proposed experiment will address the question posed because if the seeds germinate and grow roots then you
will know that sunflowers can grow without gravity.
● Our materials are six sunflower seeds, 3.5 milliliters of purified water, 3 milliliters of 10% Neutral buffered
formalin. We chose to use six sunflower seeds incase any of them die before they get to the ISS, we can still use the
others to see if they will germinate. We chose purified water because that’s what they use in the space station. We
chose not to include potting soil because the sunflower seeds grew without it. We will use 10% Neutral buffered
formalin because we needed a fixative for stopping the plant growth before leaving the ISS so we can tell if it grew
in microgravity instead of on Earth.
● We will use 3 milliliters of 10% neutral buffered formalin because it doesn’t only stop the growth of the
sunflower seedling but, it preserves it as well.
● We are doing this same experiment at the same time on earth because we want to compare if the sunflower will
germinate more on earth or in microgravity. The experiment done on Earth is called the ground truth experiment.
This will allow gravity to become the independent variable.
● We recently completed an experiment to see if the sunflower seeds would germinate in the FME. We found out
that they germinated both with and without potting soil. Therefore we chose to omit the soil from the FME,
allowing more space for water.
● We chose to open the clamp two weeks before the FME leaves the ISS, because it takes
about 5 days for the seeds to germinate, we want the seeds to have two weeks to germinate and the roots to grow.
Procedure
Loading the FME:
1. First, we’re going to put 3.5 milliliters of purified water into volume 1.
2. Next, we’re going to put 6 sunflower seeds into volume 2.
3. Last, we’re going to put 3 milliliters of 10% neutral buffered formalin into volume 3.
4. We will record the mass of the seeds on a table before placing them into the
FME. The mass of the seeds before we put them in the FME was 0.1 grams and we will measure the grams of
the seeds again when they return.
Procedures aboard the ISS:
1. Two weeks before the FME leaves the ISS, unclamp clamp A and shake for 10 seconds.
2. While the FME experiment is being conducted on the ISS, we are going to do the same experiment here on
earth.
3. Before leaving the ISS clamp B will be opened with the 10% Neutral Buffered Formulation to get into the
seeds to prevent them from growing and preserves the seeds once returning to earth. We will open clamp B on
earth at this time as well.
4. After the FME returns to Earth, we will record take measurements of the roots and mass of the seeds from
both Earth and the FME on the ISS. We will record our observations on how big the roots got in millimeters
and the mass of the seed in grams on tables.
Acknowledgements
We would like to acknowledge the following organizations for helping make
SSEP KC Mission 7 a reality;
Participating Schools:
Benjamin Banneker Charter Academy of Technology
Académie Lafayette
St. Peter’s School
Alta Vista Charter School
Crossroads Academy of Kansas City
Sponsors:
aSTEAM Village
The Black Economic Union Of Kansas City
University of Central Missouri
DBA: Distribution By Air
National Center for Earth and Space Science Education
Microsoft
The Smithsonian National Air and Space Museum
Center for the Advancement of Science in Space
Subaru of America