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Copy of Aeroponic and STEM Education

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Daniel Benitez

on 1 September 2014

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Transcript of Copy of Aeroponic and STEM Education

Aeroponic and STEM Education
By: Allison Mattox, Kendal Aldridge, Sally Frances Smith, and Allison Taylor
5 tower tiers each consisting of 4 pod holders
Metal rods placed to keep structure together to assemble the five separate tiers.
Internal Tubing
Plug which plugs into a timer
How Aeroponic Towers Work
About Aeroponics
Aeroponics is the process of growing plants in an air or mist environment without the use of soil.
Aeroponic STEM Project
Testing the growth rate of lettuce plants
We planted 20 pods
The plants took about 5 weeks before they were ready to harvest.
How Aeroponic Tower Works
The aeroponic garden has a 20 gallon water reservoir at its base.
This reservoir stores the nutrient solution combined with water.
Inside the reservoir is a small, low wattage submersible pump.
The pump pushes the nutrient solution up through a small central hose, all the way to the top of the Tower Garden.
From there, the nutrient solution drips through the central “tower” using a special device that evenly distributes the nutrient solution over the exposed plant roots.
As the solution goes down the tower, the nutrient solution feeds the plants’ roots and becomes highly oxygenated as the solution goes back down to the reservoir.
Materials Used
JuicePlus vertical aeroponic tower garden
Lettuce seeds
20 rock wool plant pods
Water pump, timer and drain tube
Tower Tonic Mineral Blend plant food (1 qt each A and B)
pH test kit and 1 bottle each of pH+ and pH
Grow lights
Tomato cage
Constructing the Tower
Planting the Seeds
Take the pods and soak in purified or distilled water overnight.
Take the pods out and set them in a tray.
Plant the lettuce seeds in the center of the pods
Sprinkle vermiculite over the pods
Sprinkle water over the rock wool
Add water to tray ( a little under halfway of pods) and maintain this water level
Set the tray in sunlight
Wait until the seeds sprout
Place pods in the pod holders on the tower
Week 1
Week 2
Week 3
Week 4
Week 5
People have access to fresh food
According to NASA research, the time to grow plants in the tower is cut in half.
Recycles 100% of the nutrients and water, plants therefore use less than 10% of both the water and the land that are commonly used in conventional or organic farming.
Originally had the tower outside during December
The temperature lowered causing the plants to freeze and die
As a result, we replanted the seeds and moved the tower inside the biology lab.
To assure the tower was getting sun light we purchased tomato cages and attached grow lights to them.
This allowed the plants to be exposed to light and maintain a steady temperature which produced better and faster results.
Benefits for Children
Increases children's interest in eating fresh fruits and vegetables.
The produce from the tower garden is a healthy alternative to fast food
Children can become active in learning the process of how plants are grown
Full transcript