Record your observations in the table below by copying the table and pasting it into the answer text editor. Write "yes" if any photons get absorbed; write "no" if no photons get absorbed. Watch while at least 20 photons are emitted by the gun; record how many are absorbed by the molecule and how many pass straight through. Calculate the percentage of photons that are absorbed and record it in the table. The percentage is the number absorbed divided by the total number of photons observed, then multiplied by 100. Which gases absorb photons? Infrared Photons Percentage of absorbed IR photons Visible Photons Percentage of absorbed visible photons CH4 (methane) CO2 (carbon dioxide) H2O (water vapor) N2 (nitrogen) O2 (oxygen)