Greenhouse Experiment

For this experiment, you will be building a mini-greenhouse to investigate how the temperature inside the greenhouse changes when it is exposed to an outside heat source.

Each of you will need the following materials:

  • two large glass bottles or jars of the same size (clear glass)
  • one piece of plastic wrap (or a recycled plastic bag!)
  • one rubber band
  • four ice cubes (all the same size)
  • two thermometers that will fit inside the bottles (optional)

Your task is to follow the procedure for the investigation then report on your findings in a lab report. Below is the rubric that I will be using to mark your reports. You will be working independently.


  • Place two ice cubes and the optional thermometer in each bottle.
  • Cover the mouth of one bottle with the plastic and fasten it in place with the rubber band. Leave the other bottle open.
  • Place the two bottles side-by-side in a warm, sunny place.
  • Observe what happens (see details in the rubric).

Analysis Questions:

  1. Did one bottle of ice melt faster than the other? Why?
  2. How are your observations related to the transfer of heat energy? Explain.
  3. How are your observations related to the greenhouse effect? Explain.

Based on an activity at Energy Efficiency World.