标题：Implementasi Karakteristik Nilai Kalor Briket Campuran Limbah Kulit Durian dan Tempurung Kelapa pada Pembelajaran Suhu dan Kalor Di SMP N 15 Kota Bengkulu
摘要：This study aims to determine the characteristics and calorific value briquettes mix variations durian peel and coconut shell and knowing the increase in students cognitive learning outcomes after using briquettes as a practicum material on the temperature and heat material by using a model of Discovery Learning (DL) in SMP N 15 Bengkulu City.The type of research in used quasi eksperiment.The sampele in this study was extra curricular student class VII in SMP N 15 Bengkulu City.The calorific value of the briquette mixture of durian peel and coconut shell is determined by using the tool Bomb Calorimeter Chemistry Laboratory Basic Science UNIB and characteristics of the briquette was done Science Laboratory og SMPN 15 Bengkulu City.In this study, the skin of durian mixed Science Laboratory og SMPN 15 Bengkulu Citywith coconut shell with the composition (1) 20% of skin durian: 80% coconut shell; (2) 50% of the durian skin: 50% coconut shell and (3) 80% of the durian skin: 20% coconut shell.Data collection techniques in the implementation of such lerning achievement test in the form of multiple-choise has been validated.Results of research on the calorific value of the mixture at (1) amounted to 7306.81 cal / gram, at (2) amounting to 6487.31 cal / gram and in (3) of 6284.99 cal / gram.Characteristics of briquettes include water content was lost, the density of the briquettes and burning speed.Based on the results of dataprocessing showed that after learning by using the model of Discovery Learning (DL), cognitive learning outcomes of students has increased and the value of N-gain for the high grade was 0.78 in the high category, the group is sebesa 0.57 in the medium category and the lower group was 0.53 in the medium category.
关键词：Briket arang; nilai kalor; karakteristik briket; Discovery Learning
