The low scientific literacy index of Indonesian students is due to lack of attention to socio-cultural environment. Also, there are still many contents, the context, and processes in chemistry learning that have not been achieved as learning resources for developing the domain of scientific literacy into four main areas. They are science content, competence, or science process, the context of the application of science and attitude. This study intended to develop scientific literacy through ethnoscience pedagogic in chemistry learning. The method of this study was qualitative descriptive with the retrieval of data through direct observation, questionnaires, and interviews. The results of the study showed that the needs of: (1) the curriculum emphasis on the development of chemistry literacy for students; 2) the skills of chemistry lecturers in designing learning programs by using local potential in their respective regions; (3) the early discussion on the material coverage the basic concepts of chemistry; and (4) the emphasis not only on chemistry content but also on context, processes, and attitudes. Thus it can be concluded that the development of scientific literacy needs to be done by focusing on the preparation of future generations of scientific literacy with curriculum content that pays attention to culture and daily life to make it more contextual.

Beberapa penelitian mengenai kandungan bioaktif  telah dilakukan dengan menggunakan bahan dasar lamun. Sehubungan dengan kandungan senyawa bioaktif yang terkandung dalam Enhalus acoroides dan Thalassia hemprichii yang kaya dan potensial sebagai bahan kecantikan, obat, dan bidang farmasi lain, maka perlu dilakukan observasi mengenai komponen fitokimia dan tingkat toksisitasnya.  Penelitian ini melaporkan golongan senyawa kimia yang terkandung dalam Enhalus acoroides dan Thalassia hemprichii dari Pulau Pramuka, DKI Jakarta serta tingkat toksisitasnya. Uji fitokimia yang dilakukan menunjukkan ekstrak Enhalus acoroides dan Thalassia hemprichii mengandung senyawa bioaktif dari jenis flavonoid, alkaloid, dan steroid. Uji toksisitas dengan metode BSLT yang dilakukan menunjukkan ekstrak metanol Enhalus acoroides bersifat sangat toksik dengan nilai LC50 5,74 ppm, sedangkan ekstrak n-heksana Enhalus acoroides bersifat tidak toksik ditunjukkan dengan nilai LC50 1309,42 ppm

AbstrakSalah satu perilaku berisiko yang memiliki prevalensi tinggi di usia remaja adalah merokok, sedangkan seseorang yang merokok pada usia lebih muda akan lebih sulit berhenti dibanding dengan yang mulai merokok pada usia lebih tua. Tujuan penelitian ini mengidentifikasi faktor-faktor yang berhubungan dengan perilaku merokok pada remaja. Penelitian yang dilakukan merupakan penelitian deskriptif dengan desain cross-sectional. Penelitian dilakukan di Kampung Bojong Rawalele, Pondok Gede, Bekasi, Jawa Barat periode Januari-Februari 2017. Populasi penelitian adalah remaja di kampung tersebut. Subjek penelitian adalah individu usia 10-19 tahun. Sampel yang diambil sebanyak 94 responden dengan teknik snowball sampling. Remaja yang terlibat berpendidikan belum tamat SD sampai sudah tamat SMA. Di antara 19 remaja perokok (20%), merokok rata-rata sebanyak 5-6 batang per hari dan sudah merokok rata-rata selama 2-3 tahun. Sebagian besar (95%) perokok tersebut ingin berhenti merokok. Analisis bivariat menunjukkan bahwa jenis kelamin, usia, pengalaman, pengetahuan, dan sikap berhubungan signifikan dengan perilaku merokok (p<0,05). Pendidikan tidak berhubungan dengan perilaku merokok (p≥0,05). Simpulan, prediktor perilaku merokok pada remaja di Kampung Bojong Rawalele adalah jenis kelamin, usia, pengalaman, pengetahuan, dan sikap. Disarankan kepada orangtua maupun sekolah untuk memperhatikan kelompok berisiko merokok pada remaja. Kata kunci: Merokok, perilaku, remaja Factors Associated with Teenager's Smoking Behavior atBojong Rawalele, Jatimakmur, Bekasi AbstractOne among risky behaviors of teenager was smoking. Someone who smoked at younger age would be more difficult to stop than who started smoking at an older age. The purpose of this study was to identify factors associated with smoking behavior in teenagers. This is a cross-sectional study on 94 teenagers 10 to 19 years old using snowball sampling technique. The study conducted from January to February 2017 at Bojong Rawalele, Pondok Gede, Bekasi, West Java. Results showed respondents have primary school to senior high school education. Among 19 smokers, ciggaretes were consumed 5-6 stems per day and they had smoked for 2-3 years on average. Most of the smokers wanted to stop smoking (95%). The bivariate analysis showed that gender, age, experience, knowledge, and attitude significantly associated with smoking behavior (p<0.05). However, education was not associated with smoking behavior (p≥0.05). In conclusion, the predictors of smoking behavior were gender, age, experience, knowledge, and attitude. It was suggested to parents and schools to pay attention to risky groups on smoking behavior.

Acid-base material is one subject that is considered difficult by students. In addition, students are less able to associate material with a problem or phenomenon in everyday life. The development of a teaching material in the form of modules can be seen as a solution to this problem. This study aims to develop a prototype in the form of developing contextual-based chemical modules to build students' conceptual understanding of acid-base material. This research is a development research with ADDIE model design (Analysis, Design, Development, Implementation, and Evaluation). The results of the development were validated by two expert validators, one practitioner validator and ten MA Al-Mansyurati NW Aik Bukak students as students' limited test validators. Quantitative data from the results of feasibility validation were analyzed by percentage formula. Qualitative data in the form of responses and suggestions for improvement from the validator are used as considerations to make revisions to the modules developed. In general, the validator's assessment of the results of the development obtained an average percentage of material expert validators 88.8%, product design expert validators 95%, practitioner validators 92%, and limited trials of students 85.28%. This shows that the developed module is very feasible to proceed to the effectiveness test phase. Thus it can be concluded that the contextually based modules are declared to be feasible with very good quality.