[header] How to demonstrate the greenhouse effect [title] Place the thermometers in direct sunlight. [step] Put them on a concrete or wood surface that is in direct sunlight outside. Allow them to sit in the sun for 3 minutes.
[header] How to demonstrate the greenhouse effect [title] Place the thermometers in direct sunlight. [step] Put them on a concrete or wood surface that is in direct sunlight outside. Allow them to sit in the sun for 3 minutes.
After this time, look for small, bug-like insects that hang out from the thermometers to help refresh the plants. [substeps] If you place the thermometers close to the heated center of the greenhouse, they will remain in direct sunlight. [substeps] Set the timer or clock to 3 minutes so you know when the time is up. You can also place the thermometers under a sun lamp for 3 minutes if you are creating a model indoors. After the sun sets, the thermometer will go into the lab for an additional 15 minutes. [substeps] Put some rocks, pebbles, vases or greenery around the thermometers. [title] Use a squat lamp to check the thermometer. [step] An thermometer should read 25 degrees f (13 degrees c).