Conservatories in the 
Almeria Region
Experiment: Greenhouse effect

Strawberries, grapes, oranges, and tomatoes are no longer surprising to see in the shelves of our supermarkets in February. These fruit types have been grown outside of their natural seasons and come to us, for example, out of Almeria’s greenhouses. Because the season there too is not ideal for fruit growth, the farmers manage the plants with an artificial greenhouse effect. 
In the experiment, it will be worked out, how such a greenhouse effect comes into existence.

Required Materials:
•	Two Glasses
•	Saran Wrap
•	Incense
•	(Infrared) Thermometer
•	Two Lamps

1.	Place a smoky stick of incense in the first glass, and shine a lamp on the glass.
2.	Place a smoky stick of incense in the second glass, and place the saran wrap on top of the glass. Afterwards, shine a lamp on the glass as well. 
3.	After 5 minutes, measure the temperature in both glasses and notate the results. 

1.	Run the experiment in groups of two. What happens? 
2.	Try to explain the measured results. 
3.	Which growth-benefits does the second glass reap?