Uswatun Nisa, Nurhayani H. Muhiddin, Ramlawati / JIT Vol 6. No 1. 2022 ISSN 2597-8977 JURNAL IPA TERPADU 31 Abstrak: Penelitian bertujuan untuk mengetahui : (1) miskonsepsi yang terjadi pada peserta didik didik kelas VII SMPN 24 Makassar pada materi lapisan bumi dan (2) persentase peseta didik kelas VII SMPN 24 Makassar yang mengalami miskonsepsi. Penelitian ini merupakan penelitian deskriptif kuantitatif dengan desain survei deskriptif. Populasi penelitian sebanyak 360 peserta didik kelas VII dengan teknik sampling secara Random Sampling sehingga diperoleh sampel sebanyak 133 peserta didik. Penelitian menggunakan tes tertulis dengan soal pilihan ganda beralasan dengan tingkat keyakinan (three-tier diagnostic test) sebanyak 17 butir soal yang telah melalui validasi ahli dan validasi item. Data dianalisis dengan analisis statistik deskriptif. Hasil identifikasi menunjukkan bahwa: (1) miskonsepsi terjadi pada semua konsep yang ada pada materi lapisan bumi dengan kategori tinggi (2) persentase miskonsepsi peserta didik pada konsep komponen penyusun atmosfer sebesar 65,41% (tinggi), hubungan antara ketinggian tempat, tekanan udara dan jumlah molekul udara di atmosfer sebesar sebesar 62,91% (tinggi), karakteristik lapisan troposfer sebesar 68,80% (tinggi), karakteristik lapisan stratosfer sebesar 60,15% (tinggi), karakteristik lapisan mesosfer sebesar 71,43% (tinggi), karakteristik lapisan termosfer sebesar 77,45% (tinggi), karakteristik lapisan eksosfer sebesar 71,43% (tinggi), karakteristik litosfer sebesar 60,53% (tinggi), penyebab terjadinya gempa bumi 63,91% (tinggi), penyebab terbentuknya gunung api 50,38% (sedang), dan karakteristik hidrosfer 67,67% (tinggi). Kata Kunci: Miskonsepsi, Lapisan Bumi, Three-Tier Diagnostic Test Abstract: This research aims to find out : (1) which concepts were SMPN 24 Makassar students had misconception and (2) percentage of SMPN 24 Makassar students were misconceptions on topic earth layer. The research was descriptive quantitative with survey descriptive design. The population are 360 students of grade VII with 133 students as samples by using random sampling. The research had used multiple choice included reason and certainty of response index (three-tier diagnostics test) with 17 questions that have been validated by experts and through item validation as data collection technique. Data were analyzed with statistic descriptive analysis. The results are: (1) misconceptions has been identified in all concepts of topic earth layer that was categorized in high level (2) misconception’s percentage of students on the concepts related to the components of the atmosphere 68.70% (high), the relationship between place height, the air pressure and the number of air molecules in the atmosphere 64.60% (high), troposphere characteristics 68.80% (high), stratospheric characteristics 61.54% (high), mesosphere characteristics 69.45% (high), thermosphere characteristics 76.71% (high), exosphere characteristics 69.65% (high), lithosphere characteristics 62.93% (high), causes of earthquakes 66.02% (high), causes of volcanic formation 52.35% (medium), and hydrosphere characteristics 65.60% (high). p-ISSN : 2597-8977 e-ISSN : 2597-8985 Uswatun Nisa Universitas Negeri Makassar Nurhayani H. Muhiddin*) Universitas Negeri Makassar Ramlawati Universitas Negeri Makassar *) Correspondence Author: nurhayani08@gmail.com IDENTIFIKASI MISKONSEPSI PESERTA DIDIK KELAS VII SMPN 24 MAKASSAR PADA MATERI LAPISAN BUMI JIT 6 (1) (2022) 31-42 JURNAL IPA TERPADU http://ojs.unm.ac.id/index.php/ipaterpadu Keyword: Misconception, Earth Layer, Three-Tier Diagnostic Test