The aims of this research were to: (i) develop a pop-up book on the role of buffer in the living body for senior high school, and (ii) describe the response of learners and teachers to the developed pop-up book. The method of research was a Research and Development (R - D) with a model ADDIE (Analysis, Design, Development, Implementation and Evaluation). Phase of analysis was done by interviewed the teacher and distributed questionnaires to the needs analysis to 26 learners of senior high school, named SMAN 3 Banda Aceh. The design phase included the activities of the material formulation, the determination of media design (theme, colors and images) and manufactured of blueprints pop-up book that would be validated. The development phase was done by manufactured of pop-up book as designed and carried out feedback from the expert validators. At the implementation stage, the learning process was conducted using the developed pop-up book to study the response of learners and teachers on the book. In the evaluation phase, the successfulness of development of a pop-up book using ADDIE models was determined. Based on the results of the feasibility assessment of pop-up book, the responses of learners and teachers noted that pop-up book has been successfully developed with the average percentage of 94.047 percent and the feasibility of obtaining the category of very decent. The percentage of response’ learners reached 92 percent and the percentage of chemistry teacher's response was found to be 80 percent. Obtaining this percentage was in excellent condition, so that it could be said that the students and the teacher to respond strongly agreed that the developed pop-up book could be accepted as an alternative medium of learning the material role of buffer solution in the living body.

One way to solve the problem of chemistry learning is that teachers are expected to have methods, models of teaching and learning, as well as learning media that can choose according to the subject concepts to be conveyed. This research was aimed to develop a learning media called as ingenious circuit, and to describe the activity also users' feedback on the developed media. The type of research was research and development (R & D). While the used design of development was ADDIE (Analysis, Design, Development, Implementation, and Evaluation) using qualitative methods. The research was conducted in senior high school named SMAN 1 Krueng Barona Jaya in class XI MIA 2 with a number of 20 students. The instruments used to collect the data were a sheet for media validation, questionnaires to measure the response, and the observation sheet to measure student activity during use the developed media. After the ingenious circuit was developed with the phase of ADDIE, the validation results showed that a viable ingenious circuit up to 100 percent on aspects of the format. While the visual aspect, the feasibility of achieving 90.62 percent. In addition, the circuit was also tested for eligibility based on the aspect of clarity in the presentation of the question and the results was found to reach 100 percent, as well as on aspects of functioning or quality of 87.5 percent. This study also found that the response of the students after they used the media, including the highly positive, as much as 90.00 percent. As well as with teachers, the responses were in very good condition, which reached 89.29 percent. In addition, the student activity test results when they use this developed circuit was considered very active, with an average percentage score of 80.57. Based on the overall results of the study, it can be concluded that a series of ingenious circuit could be developed with ADDIE model and feasible to implement in the learning process of colloids. In addition, the responses of students and teachers those who used the circuit were also very positive, especially the students more active in the learning process of colloids.

Plant of Muntingia calabura L are often known as “kersen”, "seri or "cherry". Leaves of Muntingia calabura L. contains many benefits but its properties are still little known to the public. It contains secondary metabolites which have many uses. This study was aimed to determine the content of secondary metabolites in this leaf. Leaves extracts were obtained by maceration extraction for 3 times 24 hours using polar, semi-polar and non-polar solvents to determine the solubility of secondary metabolite compounds in each solvent. The solvents used were ethanol, ethyl acetate and n-hexane. The leaveswere dissolved a lot in polar solvents, marked by the formation of a dark green color in ethanol-series extracts, the color fades more in semi-polar and non-polar solvents. The three leaves extracts were tested for secondary metabolite contents by phytochemical screening tests. Phytochemical screening was an initial selection stage to detect classes of chemical compounds contained in plant. Phytochemical screening were included alkaloid, terpenoid, steroid, tannin, flavonoidand saponin tests. Based on the results of phytochemical screening tests, the leaf was contained several secondary metabolite compounds, namely flavonoids, saponins, steroids, terpenoids, alkaloids, phenols and tannins.

The study entitled "The Application of School Watching to Increase the Earthquake Disaster Knowledge of Primary School Students, MIN Blang Mancung, Aceh" was aimed to describe the students' knowledge of the different dangerous objects in the face of an earthquake. The approach used in this study was qualitative and quantitative. The type of study was descriptive. Subjects used were as many as 30 students MIN Blang Mancung, Aceh. The method used was an experimental, which was divided into two classes, namely the experimental and control classes. Data collection technique was using questionnaires, which included the questions about common dangerous objects, dangerous objects in the class and also in the school yard. The results showed that there was a significant effect on students' knowledge before and after the implementation of the method School Watching. In addition, the knowledge of students toward the dangerous objects was found to be significant different between control and experimental class.

Buah pepaya mengandung banyak vitamin terutama vitamin A, B, C, dan E. Selain itu, pepaya juga mengandung banyak mineral seperti fosfor, magnesium, zat besi, dan kalsium yang baik untuk kulit. Penelitian ini bertujuan untuk membuat sabun cair dari daging buah papaya (Carica papaya L.). Selain itu, pengaruh kadar Kalium Hidroksida (KOH) terhadap kualitas sabun juga dianalisis. Sabun cair dibuat dari daging buah papaya melalui reaksi saponifikasi dari minyak dan lemak yang direaksikan dengan KOH. Variasi kadar KOH yang digunakan, yaitu 10, 20, dan 50 persen. Pengaruh kadar KOH terhadap kualitas sabun dilakukan dengan pemeriksaan organoleptis dan uji keasaman (pH). Hasil penelitian ini menemukan bahwa sabun cair dari daging buah pepaya yang diformulasi dengan variasi KOH berkadar 10, 20, dan 50 persen dengan uji organoleptis adalah sama untuk ketiga variasi KOH. Kesamaan itu ditunjukkan dari segi warna, yaitu berwarna orange, cairan berbentuk homogen, dan memiliki bau yang khas. Selain itu, melalui uji keasaman ditemukan bahwa pH sabun berkisar antara 10 hingga 12. Penelitian ini menyimpulkan bahwa formulasi sabun cair yang dibuat menggunakan daging buah pepaya mempunyai kualitas yang terbaik pada kadar KOH 10 persen.   Papaya contains many vitamins, especially vitamin A, B, C, and E. In addition, papaya also contains a lot of minerals such as phosphorus, magnesium, iron, and calcium which are good for the skin. This study aimed to make liquid soap from papaya fruit (Carica papaya L.). In this study, the effect of the levels of Potassium Hydroxide (KOH) on the quality of soap was also analyzed. Liquid soap was made from the flesh of papaya fruit through a saponification reaction from oil and fat which was reacted with KOH. Variations in KOH levels used were 10, 20 and 50 %. The effect of KOH level on the quality of soap was carried out with organoleptic examination and acidity test (pH). The results of this study found that liquid soap from papaya fruit formulated with variations of KOH with levels of 10, 20, and 50 % with organoleptic tests were the same for all three variations of KOH. The similarity was shown in terms of orange color, the homogeneous liquid, and its distinctive odor. In addition, through the acidity test, it was found that the pH of soap ranged from 10 to 12. This study concluded that liquid soap formulations made using papaya fruit had the best quality at 10 % KOH levels.