Vol. 13 No. 1 (2021): April

Published: 2021-03-31

Articles

Synthesis and characterization of capsule shells non gelatin grass jelly leaves-seaweed as drug delivery system material

Micha Mahardika, Fauzan Amin, Ika Agustia Umami, Boima Situmeang, Agus Malik Ibrahim

1-9
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Utilization of leaf and fruit extracts of kedondong (Spondias dulcis Forst) as a supporting material for energy conversion in dye sensitized solar cells and electrochemical cells

Agus Malik Ibrahim, Boima Situmeang, Ahmad Rifaâ€™i, Afif Hidayatul Mustafid

10-21
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Student worksheet oriented on science, technology, engineering, and mathematics (STEM) with PjBL model on acid base matter by using natural product

Imtikhana Nur Khofifah, Mitarlis Mitarlis

22-37
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Analysis of BOD and COD levels for home industry wastewater: A case study in a sewage streams

Nelius Harefa, Arifman Gulo, Saronom Silaban

38-47
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Need analysis for the development of chemical literation integrated problem-solving module

Rodi Edi, Maefa Eka Haryani, Eka Adâ€™hiya

48-53
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Learning buffer solution based on virtual lab in senior high school

Gulmah Sugiharti, Aldhi Kurnia

54-59
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The development of teaching materials oriented to critical thinking skills for chemistry class XI high school

Risma Siahaan, Marham Sitorus, Saronom Silaban

60-68
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The differences of achievement of the national olympiad in chemistry at the public and private senior high school by utilizing quizizz media

Leony Sanga Lamsari Purba, Nelius Harefa, Sali Afridika, Dera Savera

69-77
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The development of learning modul of colloid system integrated with project based learning (PjBL) system to increase the result of students™ learning

Sri Wartika, Zainuddin Muchtar, Wesly Hutabarat

78-84
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The implementation for natural science online lecture with chemistry education base at Nurul Fadhillah school Bandar Setia

Zainuddin Muchtar, Sri Adelila Sari, Siti Rahmah, Moondra Zubir, Rini Selly, Marini Damanik

85-93
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