Edible Indicators Acid-Base, Chemistry, Food, Science Experiment|by Reyshan Acids are compound that produce hydrogen ions (H+) when dissolved in water.
Utilazation Of Waste Rice Straw As Material Paper Making Chemistry, Environment, Paper, Plant, Science Project|by Reyshan Preface Problem The development of world education is increasing, will be directly
Installation of Water Purification and Using Cactus (Opuntia cochenillifera) As coagulant To Overcome The Clean Water Problem Around The River Community Chemistry, Environment, Plant, Science Project, Water|by Reyshan Preface Problems Clean water is a basic human need, because human activities
Making Liquid Soap From Skin Kapook Tree (Ceiba petandra Gaertn) And Waste Cooking Oil Chemistry, Oil, Plant, Science Project, Soap|by Reyshan Waste Cooking oil is a cooking oil that has been used repeatedly.