Darkness color index analysis using android-based RGB colorimeter for educational science purposes


  • Rizki Maulana Ashidiq Department of Science Education, Universitas Pendidikan Indonesia
  • Eka Cahya Prima Department of Science Education, Universitas Pendidikan Indonesia
  • Riandi Department of Science Education, Universitas Pendidikan Indonesia


Darkness color index analysis, Enviromental science, RGB colorimeter, Scieence practicum, Tobacco darkness


The UNESCO outlined eight essential competencies that crucial for students to attain the 21st demands. Engaging science learning activities through the experimental practicum can empowers students to employ critical, active, and collaborative thinking when addressing scientific challenges, particularly those related to environmental pollution. The objective of this study how does the effect of TAR amount towards darkness color index using RGB colorimeter application. The research methodology in this study is science practicum development. In this study, science practicum activities are combined with STEM and Project-Based Learning model in conducting the activities. After conducting the experiment, the result shows that the quality of color residue is depend on the amount of TAR and Nicotine inside tobaccos. More amount of TAR in Tobaccos is Darker the color of residue. Furthermore, there are lots of variables that we should consider in this experiment. For example, duration of tobacco smoking (time), the volume of water inside the plastic bottle (volume), and the length of tobaccos (length). Because the variables can affect the tobacco residue and affect the RGB color index.


Afriani, Andri. 2018. Pembelajaran kontekstual (cotextual teaching and learning) dan pemahaman konsep siswa. Jurnal Al-Mutaaliyah: Jurnal Pendidikan Guru Madrasah Ibtidaiyah 3 (1): 80–88.

Amah, Virgianto Tara, Cicik Sudaryantiningsih, and Elvis Umbu Lolo. 2023. Analisa dampak limbah cair industri tahu di kampung krajan, mojosongo surakarta terhadap kualitas fisik dan biologis air sungai krajan. Jurnal Teknik Sipil dan Arsitektur 28 (1): 60–68.

Barry, Shannon, KA Stofer, J Loizzo, and P DiGennaro. 2023. High school students’ perceptions of science and scientists improve following university-based online dna day. Journal of Biological Education 57 (5): 1170–1185.

Çelik, Turgay, Hüseyin Özkaramanlı, and Hasan Demirel. 2007. Fire and smoke detection without sensors: image processing based approach. In 2007 15th european signal processing conference, 1794–1798. IEEE.

Creswell, John W, and J David Creswell. 2017. Research design: qualitative, quantitative, and mixed methods approaches. Sage publications.

Doloksaribu, Florida Emmy, and Irwandi Yogo Suaka. 2021. Peningkatan kemampuan literasi sains melalui penerapan pembelajaran praktikum kimia pada siswa sman 4 jayapura. Jurnal Abmas 21 (2): 66–70.

El Takach, Suzanne, and Abdullah Al Tobi. 2021. Teachers and students’ perceptions of science and scientists: a comparative study. International Journal on Social and Education Sciences 3 (1): 126–160.

Knezek, Gerald, Rhonda Christensen, Tandra Tyler-Wood, and Sita Periathiruvadi. 2013. Impact of environmental power monitoring activities on middle school student perceptions of stem. Science Education International 24 (1): 98–123.

Laelandi, Rahayu, Siti Sriyati, and Eka Cahya Prima. 2023. Science practicum activities through water and air pollution experiments on environmental pollution materials in junior high schools. JSEP (Journal of Science Education and Practice) 7 (2): 1–15.

Larasati, Nurindahsari Niken, Sri Yulina Wulandari, Lilik Maslukah, Muhammad Zainuri, and Kunarso Kunarso. 2021. Kandungan pencemar detejen dan kualitas air di perairan muara sungai tapak, semarang. Indonesian Journal of Oceanography 3 (1): 1–13.

Melisa, Putri. 2020. Differences respiration rates in grasshoppers (oxya serville) and crickets (archeta domesticus) after the addition of insecticides. Jurnal Jeumpa 7 (2): 450–457.

Patel, Parth H, Kristofer L Conrad, Anuradha L Pathiranage, and Leslie A Hiatt. 2020. Practical applications of organic chemistry: improving student knowledge of gc–ms through qualitative analysis of nicotine in electronic cigarette vapors. Journal of Chemical Education 97 (11): 4117–4122.

Rieckmann, Marco. 2017. Education for sustainable development goals: learning objectives. UNESCO publishing. Saija, M, S Rahayu, F Fajaroh, and S Sumari. 2022. Enhancement of high school students’ scientific literacy using local socioscientific issues in oe3c instructional strategies. Jurnal Pendidikan IPA Indonesia 11 (1): 11–23.

Sari, Rosiana Melia, and Antuni Wiyarsi. 2021. Inquiry learning using local socio-scientific issues as context to improve students’ chemical literacy. In 7th international conference on research, implementation, and education of mathematics and sciences (icriems 2020), 201–208. Atlantis Press.

Subiantoro, Agung W, and David F Treagust. 2021. Development and validation of an instrument for assessing high-school students’ perceptions of socio-scientific issues-based learning in biology. Learning Environments Research 24:223–237.

Trinderup, Camilla H, Anders Dahl, Kirsten Jensen, Jens Michael Carstensen, and Knut Conradsen. 2015. Comparison of a multispectral vision system and a colorimeter for the assessment of meat color. Meat science 102:1–7.

Wang, W, and Barbara J Finlayson-Pitts. 2003. Measurement of trace metals in tobacco and cigarette ash by inductively coupled plasma-atomic emission spectroscopy. Journal of chemical education 80 (1): 83.

Yuliyanti, Mela, Vinsensius Maunia Singgih Husada, Halida Anwar Alzundi Fahrudi, and Widiastuti Agustina Eko Setyowati. 2019. Quality and detergency optimization, liquid detergent preparation, mahogany seed extract (swietenia mahagoni). JKPK (Jurnal Kimia dan Pendidikan Kimia) 4 (2): 65–76.




How to Cite

Maulana Ashidiq, R., Cahya Prima, E., & Riandi. (2023). Darkness color index analysis using android-based RGB colorimeter for educational science purposes. Research in Physics Education, 2(2), 125–137. Retrieved from https://journal.institutpendidikan.ac.id/index.php/ripe/article/view/37