Objective: The student will make am plastic bag greenhouse.
Procedure: Place a clear plastic garment bag of the type used by dry cleaners over a house plant in a hanging planter. Gather the plastic around the top center to close the opening, and tape it to the hanger. Next, gather the plastic at the lower end, twisting it until a loose knot can be tied, thus closing the bottom end also. Hand the plant in an area of moderate heat and light to leave it over a weekend or school vacation period when no personal care can be given. Similarly cover plants in regular planters with plastic bags that can be taped and tied closed, thus fashioning for each an individual greenhouse. Plants treated in this manner thrive in their individual greenhouses until the vacation period is over.
Observation: Write in your journal your own observations of your greenhouses.