Fatima:

I believe that the temperature will change when humans are present in the classroom because logically the classroom generally gets hot when more people are in the room or a group of people come back from gym. This hypothesis is based on my observations last year in our house where the air conditioning or the heater would never work, when there were more people in the room the room would be much warmer.

According to physicsforums.com we know that the human body is capable of producing heat to keep our body temperature at a healthy or normal amount. But little do we know that human bodies actually emit heat as well. Meaning that we can get an answer from the web, but what scientists have studied were tested in different environments, but we would like to know what would be the temperature and how it changes in our environment and with our age. In order for humans to maintain a comfortable body temperature they need to lose heat to a colder environment. But that changes when the room is crowded, everyone’s body emits more heat *due to the amount of people in the room* which results in the room temperature increasing. This goes with what the first law of thermodynamics states. Energy can only change form which means that it will be passed around the room.

Many factors have a direct affect on the general temperature of a room. One of them being the outside temperature. According to my research, warmer air is always trying to locate and find cooler air. In the summer, when the temperature inside a room is colder than the temperature outside, the warm air tries to enter the room through windows and roofs etc.. The opposite is also true. When the air outside is colder than the air inside, the warm air inside the room tries to escape to the air outside the room. Although many people assume that the only use for the insulators in a building is to provide heat, that isn’t its only purpose. It also prevents the warm air outside from coming into the building. This makes the room temperature lower than the temperature outside during the summer and higher temperatures in the winter. As humans the H2O we breathe out produces or adds more humidity to the room. According to Uswitch, the lower the air humidity is in a room, the more likely it is to feel colder. Water evaporation can also be a source of humidity, but this does not apply to our experiment.

the independent varibae in our experiment is the location (classroom)

Independent variable is the amount of people in the classroom

the dependent variable is the temperature that is the result of the munt of people in the classroom.

Process:

1. Place a thermometer inside the classroom
2. Pick 2-3 days, on each day after lunch we start the analysis (the days we test should not have drastic differences in the weather outside)
3. Every time the class is empty and full we check, then log in our notebook the temperature. 
4. We put in specific time slots
5. After the information is gathered, we average everything out. We then subtract the change in temp. With the default temp.
6. We then login and analyze the change to see if it was noticeable by us

Variables we are testing

1. If students are present

Analysis 

After our experiment was complete our analysis includes the following.

• Before we share our analysis with you, we would like to say that we had expected significant changes in temperature, but our experiment has proven our hypothesis to be  slightly false. Though there are many things that affected the results meaning that there was a potential higher change in temperature *more on that in next section*
• Tuesday

• On this day the temperature was around 1 to 0 celsius

1. Starting at 12:15 (lunch) the temperature was 24 Celsuis ,although the temperature could have been slightly higher due to the door not being closed
2.  At 12:50 (recess) we experienced our first drop in temperature being 22-22.9 Celsius. We notice that this temperature drop is approximately 2-2.9 degrees celsius. This proves to us that the temperature did change when students were absent inside the classroom.
3. Approximately at 1:00 Pm (islamic (g) gym (b)) the classroom was 23-24 degrees celsius. The classroom was enclosed and the room felt warm/hot, this was an increase of approximately 2-2.9 degrees celsius and the class was returning to its average temperature when students were present.
4. 1:40 (prayer), The classroom temperature was ranging from 19-21 degrees celsius. The area was significantly cooler than the last reading we did. The drop ranged from 2-5 degrees celsius showing that it got noticeably cooler
5. 2:00 (art) The classroom temperature was 24-24.7 degrees celsius. Despite a group of people missing from the classroom, the classroom still retained its average temperature of 24 Celsuis

Wednesday

• Based on the measurements we took on the fourteenth  of January, when students were present inside the classroom at 12:15 the temperature was higher compared to the temperature on  the fifteenth when the students were not inside the classroom.
• After the experiment was conducted we noticed that there was a change in temperature from lunch time where the students were inside the classroom compared to recess time when the students were not. At lunchtime the temperature was 24 degrees and it dropped by to degrees resulting in a temperature of 22 degrees celsius.  
• The temperature then increased yet again during social class when the students came back into the classroom at one o’clock, however, it was not as warm as in the morning. This was because the outside weather got colder which impacted the weather inside the classroom.
• Again the temperature dropped but for the same reason not as much as before due to the outside weather.
• We were unable to measure the weather during the math block because the thermometer was unavailable. But my assumption would be that it was approximately 23 degrees celsius.

Conclusion\ results.

Based on our experiment and research we conclude that our hypothesis was correct. The experiment we conducted  has proven that- just as we hypothesized- the more people inside a room the higher the room temperature. But unlike we assumed, the temperature does not change significantly. It only increases or decreases by one or two degrees (or more). We also  concluded that the amount of people in a room is not the only thing that affects room temperature, so does the outside weather or if the room is enclosed.In other words,the outside weather did not affect the amount of change rather the weather before the change. Also, based on our research, the reason why the temperature drops is because of the lack of people in a room because the presence of people in a room adds to the humidity. In simpler terms the more people in a room the more humid it is.This because humans breathe out carbon dioxide which is one of the causes of humidity. All in all, our hypothesis was proven to be accurate. Although it would have solidified our experiment to measure the temperature of more than just two days.

• Because we were unable to stop the ventilation system during the time of our experiment, we were unable to get the most accurate results and measurements. According to our research ventilation helps the room temperature remain stable and not drop or increase rapidly due to changes in outside weather. Our experiment could have had different results if we had the authority to stop the ventilation system in our classroom.
• We would have seen more significant changes in room temperature had we measured the classroom immediately after gym class. We would have seen more significant changes because as a body works out it becomes hotter and with multiple students it would have had a major effect on room temperature. But that also wouldn’t have worked because the class does not have a gym at the same time, instead half the classroom at one and the other half at another. 
• We could have measured immediately after recess but due to the outside weather people would not have been as motivated to run around and play and so their bodies would not have been as hot and would not have affected the temperature of the room.
• The size compared to the amount of students can affect the temperature in the room.  The smaller the room and the more students the air cannot escape meaning that the room will be hotter. The more students in a room the more heat emitted and if the room is smaller there is more hot air 

References

1. https://thehvacservice.ca/what-is-the-healthiest-or-ideal-room-https://thehvacservice.ca/what-is-the-healthiest-or-ideal-room-
2. https://www.uswitch.com/gas-electricity/guides/what-is-the-ideal-room-temperature-for-your-home/#:~:text=Insulation%3A%20the%20insulation%20in%20your,all%20affects%20a%20room's%20temperature.
3. The thermometer used

References

1. https://thehvacservice.ca/what-is-the-healthiest-or-ideal-room-https://thehvacservice.ca/what-is-the-healthiest-or-ideal-room-
2. https://www.uswitch.com/gas-electricity/guides/what-is-the-ideal-room-temperature-for-your-home/#:~:text=Insulation%3A%20the%20insulation%20in%20your,all%20affects%20a%20room's%20temperature.
3. The thermometer used
4. Our classroom for the room
5. Mr. Elahi for giving us feedback