Science Fair Projects World

Investigating the Greenhouse Effect


Demonstrate the greenhouse effect and measure its impact on temperature.


  • Two clear plastic bottles
  • Thermometers
  • Plastic wrap or lids
  • Clock or timer
  • Notebook for observations


  1. Place a thermometer inside each clear plastic bottle.
  2. Cover one bottle with plastic wrap or a lid, leaving the other uncovered.
  3. Position both bottles in direct sunlight and start the timer.
  4. Measure and record the temperature inside each bottle at regular intervals in your notebook.
  5. Compare the temperatures to observe the greenhouse effect in the covered bottle.
  6. Analyze your findings to understand the impact of the greenhouse effect on temperature.
  7. Present your results in a report, explaining the principles of the greenhouse effect and its significance for climate change.