Effect of classroom temperature on a studentís performance
The materials required for this science fair project:
- 25 students age 16
- Three 800 word essays of equal difficulty
- 3 sets of test papers of equal difficulty – a test paper for each essay
- An air-conditioned classroom
- An English teacher
- A clock or watch
- A thermometer to measure the temperature of the classroom
1. For this science fair project, the independent variable is the classroom temperature, i.e. 20°C, 25°C and 30°C. The dependent variable is how well the students perform in the test. This is determined by calculating the average marks obtained after marking and grading the test papers. The constants (control variables) are the difficulty of the test, the length of the essay and the number of questions.
2. Three essays of equal difficulty are selected. Each essay will have about 800 words. With the help of an English teacher, 10 test questions are prepared for each essay. 25 copies of the essay and the test papers are prepared.
3. On the 1st day, the 25 students are brought into the classroom to be tested. The classroom temperature is brought to 20°C. This is verified using the thermometer. They are given 30 minutes to read the 1st essay and another 30 minutes to answer the 10 questions. After the 30 minutes, the test papers are collected.
4. On the 2nd day, the classroom temperature is brought to 25°C. This is verified using the thermometer. They are given the 2nd essay to read for 30 minutes and another 30 minutes to answer the test questions.
5. On the 3rd day, several hot plates are placed around the classroom to bring the room temperature to 30°C. This is verified using the thermometer. The students are given 30 minutes to read the essay and another 30 minutes to answer the questions on the test paper.
6. With the help of an English teacher, the 75 test papers are graded and the average results for the tests held at each classroom temperature are recorded in the table below.