a simple way of setting hydroponics by children. assistance by teacher is desirable as the board needs to be cut with a sharp instrument and the aerator needs an electric connection.

1. 003 HYDROPONICS
MATERIALS REQUIRED
Any water tight container / aquarium tank
aquarium tank
Cardboard
Floating platform – styrofoam (thermocol)
Plastic cups
Growing medium - coconut fiber
Aquarium air pump and air stone to oxygenate the nutrient solution
styrofoam (thermocol)
air Plastic cups pump and air stone

2. An old aquarium or water tight container can be converted into a simple
hydroponic system - a method of growing plants in mineral nutrient solutions,
without soil
air pump air stone
styrofoam
use cardboard
as light shield

3. Cut the floating platform to fit the reservoir. Using cardboard make a light
shield around the aquarium.
Cut holes in the float to fit the plastic cups. Cut small holes in the bottom of
the plastic cup and add growing medium (example coconut fiber) to the
cup.
Fill the aquarium with water and mix the nutrients (5 to 10% vermiwash as
described in Experiment 16 can be used as a nutrient solution or you can
buy plant nutrient solutions). An air pump supplies air to the air stone that
bubbles the nutrient solution and supplies oxygen to the roots of the
plants.
Place the floating platform on top of the nutrient solution and then place
the plastic cups with the plants into the holes in the platform.