The aim of this study is to find an improving way to get the same results of the flame reaction experiments using a simple spectroscope, analyzing a line spectrum as the contents of the middle school second grade science textbook.
As a result of analyzing the flame reaction experiments and a line spectrum observation experiments using a simple spectroscope provided by middle school second grade science textbook based on the 2009 revised national curriculum, it is hard to observe a line spectrum by a simple spectrum as a short combustion and to identify the color of the flame.
No students participated in the experiments can observe the line spectrum as applying the results of the line spectrum observation experiments of atoms using a simple spectroscope and flame reaction experiments based on the textbook.
Students didn't know about forming the virtual images of the atoms line spectrum in the inner side of the simple spectroscope, so they couldn't observe the spectrums as they saw through a microscope and a telescope.
To solve this problem, the simple spectroscope was made using a total reflection mirror.
The simple spectroscope was composed with 0.8mm spaced slits by cutting the both-sided blades, 1,000 transparent films with thin grooves using for diffraction gratings, and two pieces of total reflection mirrors.
Since two pieces of total reflection mirrors can let the light passing through the slits reflected and incidented aslant to the grooves, the line spectrum of the atom can be formed in the middle of the simple spectroscope. I could videotaped the formed line spectrum with a camera.
Because the total reflection mirrors have high reflexibility and no ghost phenomena, I could get clear and vivid images of the line spectrum.
After I observed through the simple spectroscope with a discharge light of the atoms of He, Hg and Ne, I could get much clearer line spectrum than the direct vision spectrometer equipped by prism, and make certain there were no ghost phenomena appeared in a simple spectroscope using normal mirrors.
As applying the line spectrum observation experiments of Na, Sr, Li using the simple spectroscope made by flame reaction equipments provided a sample ore continuously by the principle of humidification using ultrasonic oscillator to the students, I've got the same results of the atom line spectrum as those in the textbook.